Update&Delete Records in a C# DataGrid using .txt file

S M Fasih ALi

10y1kVisual Basic .NET

How to Update&Delete Records in a C# DataGrid and textfile .txt in c#.

7 Replies

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ali tuncer10y ago
Accepted answer
You can read text file to a list, remove item, and write back..
List myList = File.ReadAllLines("contact.txt").ToList(); //read
myList.RemoveAt(0); //removes first line
File.WriteAllLines("contact.txt", myList.ToArray()); //write back modified list
S M Fasih ALi10y ago
can you tell me how edit text in datagridview using( text box and button)??
Rajeesh Menoth10y ago
Hi,

Welcome :)

The answer is helpful.Then please accept it!!
S M Fasih ALi10y ago
Thank you so much !!! very easy and useful logic Thankyou again!!
Rajeesh Menoth10y ago
Hi,

Try this for removing content in Text file.
string text = File.ReadAllText("test.txt");
text = text.Replace("some text", " ");
File.WriteAllText("test.txt", text);
Reference :

http://stackoverflow.com/questions/13509532/how-to-find-and-replace-text-in-a-file-with-c-sharp
S M Fasih ALi10y ago
file name is "contact.txt"

file content : saadi ,0378243 ,[email protected]
aadi ,0352743 ,[email protected]

** This code only remove row in datagridview**
private void button2_Click(object sender, EventArgs e)
{
foreach (DataGridViewRow item in this.dataGridView1.SelectedRows)
{
dataGridView1.Rows.RemoveAt(item.Index);
}
}
Rajeesh Menoth10y ago
Hi,

Can you explain textfile ?

In grid you can check this reference :

Windows :

http://www.c-sharpcorner.com/UploadFile/1e050f/insert-update-and-delete-record-in-datagridview-C-Sharp/

Web :

http://www.aspdotnet-suresh.com/2011/02/how-to-inserteditupdate-and-delete-data.html

Textfile :

http://stackoverflow.com/questions/8457197/how-to-write-a-text-file-from-a-net-datagridview-control-cell-values