how to add columns having templatefield dynamically in gridview in asp.net

Question

how to add columns having templatefield dynamically in gridview in asp.net using c#

Dhanashri Patil · Answer

@ Page Language ="C#" AutoEventWireup ="true" CodeFile ="Default.aspx.cs" Inherits ="_Default" %> DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> html xmlns ="http://www.w3.org/1999/xhtml"> head runat ="server"> title > Untitled Page title > head > body > form id ="form1" runat ="server"> div > -- -- %> asp : Label ID ="Label1" runat ="server" Text ="Choose Class" Font-Bold ="True"> asp : Label > asp : DropDownList ID ="DropDownList1" runat ="server" AutoPostBack ="True" Width ="162px"> asp : DropDownList > br /> br /> br /> asp : Label runat ="server" ID ="ColumnsAsRows" Text ="Columns As Rows" /> asp : GridView runat ="server" ID ="gvColumnsAsRows" BackColor ="LightGoldenrodYellow" BorderColor ="Tan" BorderWidth ="1px" CellPadding ="2" ForeColor ="Black" GridLines ="None" CellSpacing ="5" Width ="323px" > RowStyle HorizontalAlign ="Center" VerticalAlign ="Middle" Width ="10px" /> FooterStyle BackColor ="Tan" /> PagerStyle BackColor ="PaleGoldenrod" ForeColor ="DarkSlateBlue" HorizontalAlign ="Center" /> SelectedRowStyle BackColor ="DarkSlateBlue" ForeColor ="GhostWhite" /> HeaderStyle BackColor ="Tan" Font-Bold ="True" /> AlternatingRowStyle BackColor ="PaleGoldenrod" /> asp : GridView > asp : GridView ID ="GridView1" runat ="server" AutoGenerateColumns ="False" BackColor ="LightGoldenrodYellow" BorderColor ="Tan" BorderWidth ="1px" CellPadding ="2" DataSourceID ="SqlDataSource1" ForeColor ="Black" GridLines ="None" CellSpacing ="10" > RowStyle HorizontalAlign ="Center" VerticalAlign ="Middle" Width ="15px" /> Columns > asp : TemplateField HeaderText ="weekdays" SortExpression ="weekdays"> ItemTemplate > asp : Label ID ="Label1" runat ="server" Text =' '> asp : Label > ItemTemplate > EditItemTemplate > asp : TextBox ID ="TextBox1" runat ="server" Text =' '> asp : TextBox > EditItemTemplate > asp : TemplateField > asp : TemplateField HeaderText ="Subjects"> ItemTemplate > asp : DropDownList ID ="DropDownList2" runat ="server" DataSourceID ="SqlDataSource1" DataTextField ="SubjectName" DataValueField ="ClassId"> asp : ListItem > English asp : ListItem > asp : ListItem > Mathematics asp : ListItem > asp : ListItem > History asp : ListItem > asp : ListItem > Algebra asp : ListItem > asp : ListItem > science asp : ListItem > asp : ListItem > Geography asp : ListItem > asp : DropDownList > asp : SqlDataSource ID ="SqlDataSource1" runat ="server" ConnectionString =" " SelectCommand ="SELECT [SubjectName], [ClassId] FROM [Subjects] WHERE ([ClassId] = @ClassId)"> SelectParameters > asp : ControlParameter ControlID ="DropDownList1" Name ="ClassId" PropertyName ="SelectedValue" Type ="Int32" /> SelectParameters > asp : SqlDataSource > ItemTemplate > asp : TemplateField > Columns > FooterStyle BackColor ="Tan" /> PagerStyle BackColor ="PaleGoldenrod" ForeColor ="DarkSlateBlue" HorizontalAlign ="Center" /> SelectedRowStyle BackColor ="DarkSlateBlue" ForeColor ="GhostWhite" /> HeaderStyle BackColor ="Tan" Font-Bold ="True" /> AlternatingRowStyle BackColor ="PaleGoldenrod" /> asp : GridView > asp : SqlDataSource ID ="SqlDataSource1" runat ="server" ConnectionString =" " SelectCommand ="SELECT [weekdays] FROM [weekdays] WHERE ([ClassId] = @ClassId)"> SelectParameters > asp : ControlParameter ControlID ="DropDownList1" Name ="ClassId" PropertyName ="SelectedValue" Type ="Int32" /> SelectParameters > asp : SqlDataSource > br /> br /> div > form > body > html > using System; using System.Configuration; using System.Data; using System.Data.SqlClient; using System.Linq; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.HtmlControls; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Xml.Linq; public partial class _Default : System.Web.UI. Page { SqlDataAdapter dadapter; DataSet dset; string connstring = "Data Source=SMART-PC;Initial Catalog=MyNorthwind;Integrated Security=True" ; string sql = "select * from Class" ; protected void Page_Load( object sender, EventArgs e) { if (!IsPostBack) { dadapter = new SqlDataAdapter (sql, connstring); dset = new DataSet (); dadapter.Fill(dset); DropDownList1.DataSource = dset.Tables[0]; DropDownList1.DataTextField = "ClassName" ; DropDownList1.DataValueField = "ClassId" ; DropDownList1.DataBind(); } SqlConnection con = new SqlConnection ( "Data Source=SMART-PC;Initial Catalog=MyNorthwind;Integrated Security=True" ); con.Open(); SqlDataAdapter da = new SqlDataAdapter ( "select Starttime,Endtime from TimeTableMain where ClassId='" + DropDownList1.SelectedValue + "'" , con); DataTable dt = new DataTable (); da.Fill(dt); DataRow dr = dt.NewRow(); dt.Rows.Add(dr); gvColumnsAsRows.DataSource = FlipDataTable(dt); gvColumnsAsRows.DataBind(); gvColumnsAsRows.HeaderRow.Visible = false ; con.Close(); } public static DataTable FlipDataTable( DataTable dt) { DataTable table = new DataTable (); //Get all the rows and change into columns for ( int i = 0; i { table.Columns.Add( Convert .ToString(i)); } DataRow dr; //get all the columns and make it as rows for ( int j = 0; j { dr = table.NewRow(); dr[0] = dt.Columns[j].ToString(); for ( int k = 1; k dr[k] = dt.Rows[k - 1][j]; table.Rows.Add(dr); } return table; } }

Rewant Choudhary · Answer

I D

Dhanashri Patil · Answer

this also not help ful .... I am having grid with templetfield in that template field dropdownlist is there i want that templatefield column create dyanamically as compare to entered id field

nallya · Answer

Mau be this will help you http://www.c-sharpcorner.com/uploadfile/Shawpnendu/dynamically-creating-bound-and-template-columns-in-gridview-using-Asp-Net/

Dhanashri Patil · Answer

thanks but i want How to create template columns dynamically in a grid view

nallya · Answer

Use this in

how to add columns having templatefield dynamically in gridview in asp.net

Answers (6)