How to disable or enable a link on datagridview in c #

ma ouml

9y3k

Hello ,

I will rest my publication because the answers that have been proposed does not meet my need

First of all I would like to tell you that

I develop a desktop application c #

I have a form that contains textbox and I have a datagridview and it contains three links

For example I want that when I filled the textbox1 the link 2 and link 3 will be disabled

Here is the code of my form

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

namespace gestion_attachements_decomptes

{

public partial class ajouter_decompte : Form

{

string num_marche;

string libelle_fournisseur;

public ajouter_decompte(string num_marche, string libelle_fournisseur)

{

InitializeComponent();

textBox1.Text = num_marche;

textBox2.Text = libelle_fournisseur;

}

private void ajouter_decompte_Load(object sender, EventArgs e)

{

panel2.Visible = false;

dataGridView2.AllowUserToAddRows = false;

DataGridViewLinkColumn link1 = new DataGridViewLinkColumn();

link1.HeaderText = ""; link1.Name = "links1";

link1.Text = "Décompte provisoire";

dataGridView2.Columns.Add(link1);

link1.UseColumnTextForLinkValue = true;

DataGridViewLinkColumn link2 = new DataGridViewLinkColumn();

link2.HeaderText = "";

link2.Name = "links2";

link2.Text = "Décompte partiel";

dataGridView2.Columns.Add(link2);

link2.UseColumnTextForLinkValue = true;

DataGridViewLinkColumn link3 = new DataGridViewLinkColumn();

link3.HeaderText = "";

link3.Name = "links3";

link3.Text = "Décompte définitif";

dataGridView2.Columns.Add(link3);

link3.UseColumnTextForLinkValue = true;

}

private void button1_Click(object sender, EventArgs e)

{

Program.cmd.CommandText =

"update attachement_marche set Id_decompte =

(select top 1 Id_decompte from decompte where Num_decompte ='" + textBox3.Text + "') where Num_attachement = '" + values.num_attachement + "'";

Program.cmd.ExecuteNonQuery();

MessageBox.Show("c'est eneregistré ");

panel2.Visible = true;

Program.cmd.CommandText = " select d.Num_decompte,d.Date_etablissement,d.Flag_dernier,d.Montant_ttc from decompte d WHERE Num_decompte ='" + textBox3.Text + "'";

Program.dr = Program.cmd.ExecuteReader();

DataTable dt = new DataTable();

dt.Load(Program.dr);

dataGridView2.DataSource = dt;

}

private void dataGridView2_CellMouseDown(object sender, DataGridViewCellMouseEventArgs e)

{

if (dataGridView2.SelectedRows.Count == 1)

{ if (dataGridView2.Rows[e.RowIndex].Cells[e.ColumnIndex].Value != null)

{ string cellval = dataGridView2.Rows[e.RowIndex].Cells[e.ColumnIndex].Value.ToString();

if (cellval.Contains("Décompte provisoire"))

{

etat_decompte_provisoire etd= new etat_decompte_provisoire(textBox1.Text, textBox2.Text);

etd.Show();

}

if (cellval.Contains("Décompte partiel"))

{

decompte_partiel dp = new decompte_partiel(textBox1.Text, textBox2.Text); dp.Show();

}

if (cellval.Contains("Décompte définitif"))

{

decompte_definitif dd = new decompte_definitif(textBox1.Text, textBox2.Text); dd.Show();

}

And I would like to thank everyone who will help me

27 Replies

Know the answer? Post it — somebody with the same question will find it here.

Madhanmohan Devarajan9y ago
Here is the step? by step details for debugging in visual studio. https://msdn.microsoft.com/en-us/library/y740d9d3.aspx
ali tuncer9y ago
Try CellContentClick event, it will fire when cell is clicked, I guess you can write something like if textbox1 is not empty and cell is link, cancel it..

Check here for CellContentClick example :

https://msdn.microsoft.com/en-us/library/system.windows.forms.datagridview.cellcontentclick(v=vs.110).aspx
ma ouml9y ago

Madhanmohan Devarajan
WHEN I DO THE BREAK POINT ON CEll_beginedit
It shows me this
Madhanmohan Devarajan9y ago
go to ajouter_decompte.cs and debug. Not in ajouter_decompte.designer.cs
ma ouml9y ago

Madhanmohan Devarajan
Madhanmohan Devarajan9y ago
Keep the break point in both dataGridView2_CellMouseDown and dataGridView2_CellBeginEdit funtions to check what is happening in the Runtime. Debug to know why it is not working.
ma ouml9y ago
I found it to be automatically
But it does not work
Madhanmohan Devarajan9y ago
private void InitializeComponent() is there in file ; ajouter_decompte.designer.cs see the below screenshot from your code.

Also i have seen the CellBeginEdit event handler pasted in right place, it should work now.

But remove the below highlighted line from ajouter_decompte.cs

public ajouter_decompte(string num_marche, string libelle_fournisseur)
{
InitializeComponent();
textBox1.Text = num_marche;
textBox2.Text = libelle_fournisseur;
this.dataGridView2.CellBeginEdit += new System.Windows.Forms.DataGridViewCellCancelEventHandler(this.dataGridView2_CellBeginEdit);
}
ma ouml9y ago

Madhanmohan Devarajan

Here is ajouter_decompte.designer.cs
Does not contain InitializeComponent ();
This last I find it in ajouter_decompte.cs

file ; ajouter_decompte.designer.cs

namespace gestion_attachements_decomptes
{
partial class ajouter_decompte
{
///
/// Required designer variable.
///
private System.ComponentModel.IContainer components = null;
///
/// Clean up any resources being used.
///
/// true if managed resources should be disposed; otherwise, false.
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}

#region Windows Form Designer generated code
///
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
///
private void InitializeComponent()
{
System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(ajouter_decompte));
this.panel2 = new System.Windows.Forms.Panel();
this.dataGridView2 = new System.Windows.Forms.DataGridView();
this.panel1 = new System.Windows.Forms.Panel();
this.button2 = new System.Windows.Forms.Button();
this.panel3 = new System.Windows.Forms.Panel();
this.textBox6 = new System.Windows.Forms.TextBox();
this.label7 = new System.Windows.Forms.Label();
this.textBox9 = new System.Windows.Forms.TextBox();
this.textBox8 = new System.Windows.Forms.TextBox();
this.textBox7 = new System.Windows.Forms.TextBox();
this.textBox5 = new System.Windows.Forms.TextBox();
this.textBox4 = new System.Windows.Forms.TextBox();
this.label10 = new System.Windows.Forms.Label();
this.label9 = new System.Windows.Forms.Label();
this.label3 = new System.Windows.Forms.Label();
this.label6 = new System.Windows.Forms.Label();
this.label8 = new System.Windows.Forms.Label();
this.checkBox1 = new System.Windows.Forms.CheckBox();
this.dateTimePicker1 = new System.Windows.Forms.DateTimePicker();
this.label5 = new System.Windows.Forms.Label();
this.textBox3 = new System.Windows.Forms.TextBox();
this.label4 = new System.Windows.Forms.Label();
this.button1 = new System.Windows.Forms.Button();
this.textBox2 = new System.Windows.Forms.TextBox();
this.textBox1 = new System.Windows.Forms.TextBox();
this.label2 = new System.Windows.Forms.Label();
this.label1 = new System.Windows.Forms.Label();
this.panel2.SuspendLayout();
((System.ComponentModel.ISupportInitialize)(this.dataGridView2)).BeginInit();
this.panel1.SuspendLayout();
this.panel3.SuspendLayout();
this.SuspendLayout();
//
// panel2
//
this.panel2.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.panel2.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
this.panel2.Controls.Add(this.dataGridView2);
this.panel2.Location = new System.Drawing.Point(121, 308);
this.panel2.Name = "panel2";
this.panel2.Size = new System.Drawing.Size(786, 133);
this.panel2.TabIndex = 6;
//
// dataGridView2
//
this.dataGridView2.AutoSizeColumnsMode = System.Windows.Forms.DataGridViewAutoSizeColumnsMode.Fill;
this.dataGridView2.BackgroundColor = System.Drawing.Color.WhiteSmoke;
this.dataGridView2.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
this.dataGridView2.Dock = System.Windows.Forms.DockStyle.Fill;
this.dataGridView2.Location = new System.Drawing.Point(0, 0);
this.dataGridView2.Name = "dataGridView2";
this.dataGridView2.Size = new System.Drawing.Size(782, 129);
this.dataGridView2.TabIndex = 1;
this.dataGridView2.CellBeginEdit += new System.Windows.Forms.DataGridViewCellCancelEventHandler(this.dataGridView2_CellBeginEdit);
this.dataGridView2.CellMouseDown += new System.Windows.Forms.DataGridViewCellMouseEventHandler(this.dataGridView2_CellMouseDown);
//
// panel1
//
this.panel1.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.panel1.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
this.panel1.Controls.Add(this.button2);
this.panel1.Controls.Add(this.panel3);
this.panel1.Controls.Add(this.checkBox1);
this.panel1.Controls.Add(this.dateTimePicker1);
this.panel1.Controls.Add(this.label5);
this.panel1.Controls.Add(this.textBox3);
this.panel1.Controls.Add(this.label4);
this.panel1.Controls.Add(this.button1);
this.panel1.Controls.Add(this.textBox2);
this.panel1.Controls.Add(this.textBox1);
this.panel1.Controls.Add(this.label2);
this.panel1.Controls.Add(this.label1);
this.panel1.Location = new System.Drawing.Point(26, 12);
this.panel1.Name = "panel1";
this.panel1.Size = new System.Drawing.Size(1054, 285);
this.panel1.TabIndex = 5;
//
// button2
//
this.button2.Anchor = System.Windows.Forms.AnchorStyles.None;
this.button2.BackColor = System.Drawing.Color.Red;
this.button2.Cursor = System.Windows.Forms.Cursors.Hand;
this.button2.FlatAppearance.BorderSize = 0;
this.button2.Font = new System.Drawing.Font("Eras Demi ITC", 11.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.button2.ForeColor = System.Drawing.Color.White;
this.button2.Image = ((System.Drawing.Image)(resources.GetObject("button2.Image")));
this.button2.Location = new System.Drawing.Point(199, 218);
this.button2.Name = "button2";
this.button2.Size = new System.Drawing.Size(188, 37);
this.button2.TabIndex = 47;
this.button2.Text = "Exécuter";
this.button2.UseVisualStyleBackColor = false;
this.button2.Click += new System.EventHandler(this.button2_Click);
//
// panel3
//
this.panel3.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Left | System.Windows.Forms.AnchorStyles.Right)));
this.panel3.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
this.panel3.Controls.Add(this.textBox6);
this.panel3.Controls.Add(this.label7);
this.panel3.Controls.Add(this.textBox9);
this.panel3.Controls.Add(this.textBox8);
this.panel3.Controls.Add(this.textBox7);
this.panel3.Controls.Add(this.textBox5);
this.panel3.Controls.Add(this.textBox4);
this.panel3.Controls.Add(this.label10);
this.panel3.Controls.Add(this.label9);
this.panel3.Controls.Add(this.label3);
this.panel3.Controls.Add(this.label6);
this.panel3.Controls.Add(this.label8);
this.panel3.Location = new System.Drawing.Point(675, 25);
this.panel3.Name = "panel3";
this.panel3.Size = new System.Drawing.Size(352, 196);
this.panel3.TabIndex = 46;
//
// textBox6
//
this.textBox6.Location = new System.Drawing.Point(173, 73);
this.textBox6.Name = "textBox6";
this.textBox6.Size = new System.Drawing.Size(162, 20);
this.textBox6.TabIndex = 13;
this.textBox6.Text = "0";
//
// label7
//
this.label7.Anchor = System.Windows.Forms.AnchorStyles.Right;
this.label7.AutoSize = true;
this.label7.Font = new System.Drawing.Font("Eras Demi ITC", 11.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.label7.Location = new System.Drawing.Point(11, 73);
this.label7.Name = "label7";
this.label7.Size = new System.Drawing.Size(125, 18);
this.label7.TabIndex = 12;
this.label7.Text = "Retenue avance:";
//
// textBox9
//
this.textBox9.Location = new System.Drawing.Point(173, 151);
this.textBox9.Name = "textBox9";
this.textBox9.Size = new System.Drawing.Size(162, 20);
this.textBox9.TabIndex = 11;
this.textBox9.Text = "0";
//
// textBox8
//
this.textBox8.Location = new System.Drawing.Point(173, 125);
this.textBox8.Name = "textBox8";
this.textBox8.Size = new System.Drawing.Size(162, 20);
this.textBox8.TabIndex = 10;
this.textBox8.Text = "0";
//
// textBox7
//
this.textBox7.Location = new System.Drawing.Point(173, 99);
this.textBox7.Name = "textBox7";
this.textBox7.Size = new System.Drawing.Size(162, 20);
this.textBox7.TabIndex = 9;
this.textBox7.Text = "0";
//
// textBox5
//
this.textBox5.Location = new System.Drawing.Point(173, 47);
this.textBox5.Name = "textBox5";
this.textBox5.Size = new System.Drawing.Size(162, 20);
this.textBox5.TabIndex = 7;
this.textBox5.Text = "0";
//
// textBox4
//
this.textBox4.Location = new System.Drawing.Point(173, 21);
this.textBox4.Name = "textBox4";
this.textBox4.Size = new System.Drawing.Size(162, 20);
this.textBox4.TabIndex = 6;
this.textBox4.Text = "0";
//
// label10
//
this.label10.Anchor = System.Windows.Forms.AnchorStyles.Right;
this.label10.AutoSize = true;
this.label10.Font = new System.Drawing.Font("Eras Demi ITC", 11.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.label10.Location = new System.Drawing.Point(13, 151);
this.label10.Name = "label10";
this.label10.Size = new System.Drawing.Size(150, 18);
this.label10.TabIndex = 5;
this.label10.Text = "Retenue à la source:";
//
// label9
//
this.label9.Anchor = System.Windows.Forms.AnchorStyles.Right;
this.label9.AutoSize = true;
this.label9.Font = new System.Drawing.Font("Eras Demi ITC", 11.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.label9.Location = new System.Drawing.Point(13, 125);
this.label9.Name = "label9";
this.label9.Size = new System.Drawing.Size(125, 18);
this.label9.TabIndex = 4;
this.label9.Text = "Autres retenues:";
//
// label3
//
this.label3.Anchor = System.Windows.Forms.AnchorStyles.Right;
this.label3.AutoSize = true;
this.label3.Font = new System.Drawing.Font("Eras Demi ITC", 11.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.label3.Location = new System.Drawing.Point(11, 21);
this.label3.Name = "label3";
this.label3.Size = new System.Drawing.Size(156, 18);
this.label3.TabIndex = 0;
this.label3.Text = "Retenue de garantie:";
//
// label6
//
this.label6.Anchor = System.Windows.Forms.AnchorStyles.Right;
this.label6.AutoSize = true;
this.label6.Font = new System.Drawing.Font("Eras Demi ITC", 11.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.label6.Location = new System.Drawing.Point(11, 47);
this.label6.Name = "label6";
this.label6.Size = new System.Drawing.Size(139, 18);
this.label6.TabIndex = 1;
this.label6.Text = "Pénalité de retard:";
//
// label8
//
this.label8.Anchor = System.Windows.Forms.AnchorStyles.Right;
this.label8.AutoSize = true;
this.label8.Font = new System.Drawing.Font("Eras Demi ITC", 11.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.label8.Location = new System.Drawing.Point(13, 99);
this.label8.Name = "label8";
this.label8.Size = new System.Drawing.Size(123, 18);
this.label8.TabIndex = 3;
this.label8.Text = "Révision de prix:";
//
// checkBox1
//
this.checkBox1.AutoSize = true;
this.checkBox1.Font = new System.Drawing.Font("Eras Demi ITC", 11.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.checkBox1.Location = new System.Drawing.Point(140, 161);
this.checkBox1.Name = "checkBox1";
this.checkBox1.Size = new System.Drawing.Size(96, 22);
this.checkBox1.TabIndex = 45;
this.checkBox1.Text = "et dernier";
this.checkBox1.UseVisualStyleBackColor = true;
//
// dateTimePicker1
//
this.dateTimePicker1.Location = new System.Drawing.Point(437, 119);
this.dateTimePicker1.Name = "dateTimePicker1";
this.dateTimePicker1.Size = new System.Drawing.Size(183, 20);
this.dateTimePicker1.TabIndex = 44;
//
// label5
//
this.label5.AutoSize = true;
this.label5.Font = new System.Drawing.Font("Eras Demi ITC", 11.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.label5.Location = new System.Drawing.Point(339, 121);
this.label5.Name = "label5";
this.label5.Size = new System.Drawing.Size(69, 18);
this.label5.TabIndex = 43;
this.label5.Text = "Etabli Le";
//
// textBox3
//
this.textBox3.Anchor = System.Windows.Forms.AnchorStyles.None;
this.textBox3.Location = new System.Drawing.Point(140, 122);
this.textBox3.Name = "textBox3";
this.textBox3.Size = new System.Drawing.Size(183, 20);
this.textBox3.TabIndex = 42;
//
// label4
//
this.label4.Anchor = System.Windows.Forms.AnchorStyles.None;
this.label4.AutoSize = true;
this.label4.BackColor = System.Drawing.Color.Transparent;
this.label4.Font = new System.Drawing.Font("Eras Demi ITC", 11.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.label4.ForeColor = System.Drawing.Color.Black;
this.label4.Location = new System.Drawing.Point(32, 124);
this.label4.Name = "label4";
this.label4.Size = new System.Drawing.Size(79, 18);
this.label4.TabIndex = 41;
this.label4.Text = "Décompte";
//
// button1
//
this.button1.Anchor = System.Windows.Forms.AnchorStyles.None;
this.button1.BackColor = System.Drawing.Color.Red;
this.button1.Cursor = System.Windows.Forms.Cursors.Hand;
this.button1.FlatAppearance.BorderSize = 0;
this.button1.Font = new System.Drawing.Font("Eras Demi ITC", 11.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.button1.ForeColor = System.Drawing.Color.White;
this.button1.Image = ((System.Drawing.Image)(resources.GetObject("button1.Image")));
this.button1.Location = new System.Drawing.Point(420, 218);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(188, 37);
this.button1.TabIndex = 40;
this.button1.Text = "Enregistrer";
this.button1.UseVisualStyleBackColor = false;
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// textBox2
//
this.textBox2.Anchor = System.Windows.Forms.AnchorStyles.None;
this.textBox2.Location = new System.Drawing.Point(437, 67);
this.textBox2.Name = "textBox2";
this.textBox2.Size = new System.Drawing.Size(183, 20);
this.textBox2.TabIndex = 38;
//
// textBox1
//
this.textBox1.Anchor = System.Windows.Forms.AnchorStyles.None;
this.textBox1.Location = new System.Drawing.Point(140, 67);
this.textBox1.Name = "textBox1";
this.textBox1.Size = new System.Drawing.Size(183, 20);
this.textBox1.TabIndex = 37;
//
// label2
//
this.label2.Anchor = System.Windows.Forms.AnchorStyles.None;
this.label2.AutoSize = true;
this.label2.BackColor = System.Drawing.Color.Transparent;
this.label2.Font = new System.Drawing.Font("Eras Demi ITC", 11.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.label2.ForeColor = System.Drawing.Color.Black;
this.label2.Location = new System.Drawing.Point(339, 67);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(92, 18);
this.label2.TabIndex = 36;
this.label2.Text = "Fournisseur";
//
// label1
//
this.label1.Anchor = System.Windows.Forms.AnchorStyles.None;
this.label1.AutoSize = true;
this.label1.BackColor = System.Drawing.Color.Transparent;
this.label1.Font = new System.Drawing.Font("Eras Demi ITC", 11.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.label1.ForeColor = System.Drawing.Color.Black;
this.label1.Location = new System.Drawing.Point(32, 67);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(102, 18);
this.label1.TabIndex = 35;
this.label1.Text = "N° de marché";
//
// ajouter_decompte
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(1114, 469);
this.Controls.Add(this.panel2);
this.Controls.Add(this.panel1);
this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;
this.MaximizeBox = false;
this.Name = "ajouter_decompte";
this.Load += new System.EventHandler(this.ajouter_decompte_Load);
this.panel2.ResumeLayout(false);
((System.ComponentModel.ISupportInitialize)(this.dataGridView2)).EndInit();
this.panel1.ResumeLayout(false);
this.panel1.PerformLayout();
this.panel3.ResumeLayout(false);
this.panel3.PerformLayout();
this.ResumeLayout(false);
}
#endregion
private System.Windows.Forms.Panel panel2;
private System.Windows.Forms.DataGridView dataGridView2;
private System.Windows.Forms.Panel panel1;
private System.Windows.Forms.Panel panel3;
private System.Windows.Forms.TextBox textBox9;
private System.Windows.Forms.TextBox textBox8;
private System.Windows.Forms.TextBox textBox7;
private System.Windows.Forms.TextBox textBox5;
private System.Windows.Forms.TextBox textBox4;
private System.Windows.Forms.Label label10;
private System.Windows.Forms.Label label9;
private System.Windows.Forms.Label label3;
private System.Windows.Forms.Label label6;
private System.Windows.Forms.Label label8;
private System.Windows.Forms.CheckBox checkBox1;
private System.Windows.Forms.DateTimePicker dateTimePicker1;
private System.Windows.Forms.Label label5;
private System.Windows.Forms.TextBox textBox3;
private System.Windows.Forms.Label label4;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.TextBox textBox2;
private System.Windows.Forms.TextBox textBox1;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.Label label1;
private System.Windows.Forms.Button button2;
private System.Windows.Forms.TextBox textBox6;
private System.Windows.Forms.Label label7;
}
}
Madhanmohan Devarajan9y ago
File: ajouter_decompte.cs [Not here]
public ajouter_decompte(string num_marche, string libelle_fournisseur)
{
InitializeComponent();
textBox1.Text = num_marche;
textBox2.Text = libelle_fournisseur;
(wrong) this.dataGridView2.CellBeginEdit += new System.Windows.Forms.DataGridViewCellCancelEventHandler(this.dataGridView2_CellBeginEdit);
}

Use it here:
File: ajouter_decompte.Designer.cs [go to this file, find for InitializeComponent and then paste it]

private void InitializeComponent() (
{
this.dataGridView2.CellBeginEdit += new System.Windows.Forms.DataGridViewCellCancelEventHandler(this.dataGridView2_CellBeginEdit);
}

Note: Please do not copy the entire code, copy only blue highlighted part and paste it within the InitializeComponent() in ajouter_decompte.Designer.cs.
ma ouml9y ago
Madhanmohan Devarajan

I just tried that it is written but it does not work another

public ajouter_decompte(string num_marche, string libelle_fournisseur)
{
InitializeComponent();
textBox1.Text = num_marche;
textBox2.Text = libelle_fournisseur;
this.dataGridView2.CellBeginEdit += new System.Windows.Forms.DataGridViewCellCancelEventHandler(this.dataGridView2_CellBeginEdit);
}

private void dataGridView2_CellBeginEdit(object sender, DataGridViewCellCancelEventArgs e)
{
if ((textBox4.TextLength > 0) && ((e.ColumnIndex == 1) || (e.ColumnIndex == 2)))
{
e.Cancel = true;
}

}
Madhanmohan Devarajan9y ago
Your If statement not seems to be correct, use the one in blue(already i sent it). According to your condition it will check for textBox4 value is not equal to 0 and (&&) the cell number is 1 and (&&) 2. How come you click two cells at a time? and you are checking for textbox value is not 0. But you should check for textbox value not null, that is text length > 0.

private void dataGridView2_CellBeginEdit(object sender, DataGridViewCellCancelEventArgs e)
{
(wrong) if ((textBox4.Text != "0" && ((e.ColumnIndex == 1) && (e.ColumnIndex == 2)))

use this=> if ((textBox4.TextLength > 0) && ((e.ColumnIndex == 1) || (e.ColumnIndex == 2)))
{
e.Cancel = true;
}
}
ma ouml9y ago
Madhanmohan Devarajan

I have already tried but it does not work

private void dataGridView2_CellBeginEdit(object sender, DataGridViewCellCancelEventArgs e)
{
if ((textBox4.Text != "0" && ((e.ColumnIndex == 1) && (e.ColumnIndex == 2)))
{
e.Cancel = true;
}
}
Madhanmohan Devarajan9y ago
Exactly that is what i have implemented.

private void dataGridView2_CellBeginEdit(object sender, DataGridViewCellCancelEventArgs e)
{
if ((dp.textBox1.TextLength > 0) && ((e.ColumnIndex == 1) || (e.ColumnIndex == 2)))
{
e.Cancel = true;
}
}

My code checks, whether dp.textBox1 has value and if cell position is 1, 2 then it will not allow those fields to edit. This is what you are asking. But please check the name of your textBox and replace it in the code else it will not work.

Cell number 2 (Décompte partiel) => e.ColumnIndex == 1

Cell number 3 (Décompte définitif) => e.ColumnIndex == 2
ma ouml9y ago
You told me or I write the script you gave me so I just did what you said
And now you tell me to write it in the constructor and at the same time you are cautious in copying paste
In any case thank you for your effort and I also tell you that be attentive of what you say
Madhanmohan Devarajan9y ago
Please paste that line next to "dataGridView2_CellMouseDown" in InitializeComponent(), not outside the intialize method. Please be cautious on copying / pasting. If you see any error, please take the cursor to the red underline it will show the reason for that error and you can try to find the solution based on that. Events should always be mentioned in IntializeComponent() that is basic thing.

private void InitializeComponent()
{

this.dataGridView2.CellMouseDown += new System.Windows.Forms.DataGridViewCellEventHandler(this.dataGridView2_CellMouseDown);
this.dataGridView2.CellBeginEdit += new System.Windows.Forms.DataGridViewCellCancelEventHandler(this.dataGridView2_CellBeginEdit);
}

Note: Please do not copy the above code to .designer.cs. It is just to show where the highted code to be pasted.
ma ouml9y ago

Madhanmohan Devarajan

Ah yes I understood your example but it is not the same situation as mine
Madhanmohan Devarajan9y ago
According to my code if you type some text in the textbox you will not be able to type in any cell of selected row except the first cell. But if the textbox is empty all cells are editable. Here is the output i got.
ma ouml9y ago
Madhanmohan Devarajan

This is what I have already done.
I know how to modify the script
I just do not know the solution of what I want
ma ouml9y ago

Madhanmohan Devarajan

No i know and i copy the code in .designer.cs but ca mache pas
You know other methods for this?
Madhanmohan Devarajan9y ago
I think you are doing just copy/ paste from my code to your form. If that is the case, code will not work. You should not change the Form (base class), your form name is ajouter_decompte. so you need to look into ajouter_decompte.designer.cs. Please be cautious on what to change and how to change.

Here is the updated code.

File: ajouter_decompte.Designer.cs

this.dataGridView2.CellBeginEdit += new System.Windows.Forms.DataGridViewCellCancelEventHandler(this.dataGridView2_CellBeginEdit);

File: ajouter_decompte.cs
private void dataGridView2_CellBeginEdit(object sender, DataGridViewCellCancelEventArgs e)
{
if ((textBox1.TextLength > 0) && ((e.ColumnIndex == 1) || (e.ColumnIndex == 2)))
{
e.Cancel = true;
}
}

Note: Please accept this answer, if it is helpful for you.
ma ouml9y ago
Madhanmohan Devarajan

I stated in form.designer.cs
But he gives me the mistakes he does not accept
Madhanmohan Devarajan9y ago
Please use the below code and add a declaration in Form1.designer.cs (Form1 is the form where you have textbox and datagridview) as shown below.

File: Form1.Designer.cs

this.dataGridView1.CellBeginEdit += new System.Windows.Forms.DataGridViewCellCancelEventHandler(this.dataGridView1_CellBeginEdit);

File: Form1.cs
private void dataGridView1_CellBeginEdit(object sender, DataGridViewCellCancelEventArgs e)
{
if ((textBox1.TextLength > 0) && ((e.ColumnIndex == 1) || (e.ColumnIndex == 2)))
{
e.Cancel = true;
}
}

Note: Please use your form name, here in the above example i have mentioned the form name as Form1.
ma ouml9y ago

Madhanmohan Devarajan

I tested this script but the links when I click on them nothing changes is that there is another event on datagridview in which I write this script and works?
Madhanmohan Devarajan9y ago
Hope this will work, The below code check for the condition, whether the textbox1 has any value and if the links are from 2 and 3 then it will cancel the edit event (disabled).

private void dataGridView1_CellBeginEdit(object sender, DataGridViewCellCancelEventArgs e)
{
if (textbox1.length > 0) && ((e.ColumnIndex == 1) || ((e.ColumnIndex == 2))
{
e.Cancel = true;
}
}

Note: Please accept this answer, if it is helpful for you.
ma ouml9y ago
Madhanmohan Devarajan

Mr me I want to disable links 1 and 2 about the text box1 is filled
How to do this
Madhanmohan Devarajan9y ago
Here is the code to disable edit in any cell based on the index. If you want to edit only first cell in the row the below code with work.

private void dataGridView1_CellBeginEdit(object sender, DataGridViewCellCancelEventArgs e)
{
if (e.ColumnIndex != 0)
{
e.Cancel = true;
}
}

Below code is from microsoft site to handle the Cell Begin and End Edit.

http://msdn.microsoft.com/en-us/library/system.windows.forms.datagridview.cellbeginedit.aspx

private void dataGridView1_CellBeginEdit(object sender,
DataGridViewCellCancelEventArgs e)
{
string msg = String.Format("Editing Cell at ({0}, {1})",
e.ColumnIndex, e.RowIndex);
this.Text = msg;
}

private void dataGridView1_CellEndEdit(object sender,
DataGridViewCellEventArgs e)
{
string msg = String.Format("Finished Editing Cell at ({0}, {1})",
e.ColumnIndex, e.RowIndex);
this.Text = msg;
}

Note: Please accept this answer, if it is helpful for you.

How to disable or enable a link on datagridview in c #

Madhanmohan Devarajan

Madhanmohan Devarajan

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Madhanmohan Devarajan

Madhanmohan Devarajan

Madhanmohan Devarajan

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Madhanmohan Devarajan