Add the radio (single choice button) column to the DataGrid

<P> // datagridradio. aspx <br> </P>
<% @ Page Language = "C #" codebehind = "datagridradio. aspx. cs" autoeventwireup = "false" inherits = "sample. datagridradio" %>
<Meta content = "Microsoft Visual Studio. NET 7.1" name = generator>
<Meta content = C # name = code_language>
<Meta content = JavaScript name = vs_defaultclientscript>
<Meta content = http://schemas.microsoft.com/intellisense/ie5 name = vs_targetschema>
<Form ID = form1 method = post runat = "server">
<Input id = RD type = hidden name = RD runat = "server"> <asp: dataGrid id = itemsgrid runat = "server" onpageindexchanged = "grid_change" autogeneratecolumns = "false" allowpaging = "true" cellpadding = "3" borderwidth = "1" bordercolor = "black">
<Headerstyle backcolor = "#00 aaaa">
</Headerstyle>
<Pagerstyle mode = "numericpages"> </pagerstyle>
<Columns> <asp: templatecolumn> <itemtemplate> <input type = radio value = '<% # databinder. eval (container. dataitem, "integervalue") %> 'name = radioname> </itemtemplate> </ASP: templatecolumn> <asp: boundcolumn datafield = "integervalue" headertext = "Number Column"> </ASP: boundcolumn> <asp: boundcolumn datafield = "stringvalue" headertext = "string column"> </ASP: boundcolumn> <asp: boundcolumn datafield = "currencyvalue" headertext = "currency column" dataformatstring = "{0: c} "> <itemstyle horizontalalign =" right "> </itemstyle> </ASP: boundcolumn> </columns> </ASP: DataGrid> <br> <asp: button id = BTN onclick = btnclick runat = "server" text = "see what you choose"> </ASP: button> <asp: label id = label1 runat = "server" text = ""> </ASP: Label>
</Form>

// Datagridradio. aspx. CS

Using system;
Using system. collections;
Using system. componentmodel;
Using system. Data;
Using system. drawing;
Using system. Web;
Using system. Web. sessionstate;
Using system. Web. UI;
Using system. Web. UI. webcontrols;
Using system. Web. UI. htmlcontrols;

Namespace sample
{
/// <Summary>
/// Summary of the datagridradio.
/// </Summary>
Public class datagridradio: system. Web. UI. Page
{
Protected system. Web. UI. webcontrols. DataGrid itemsgrid;
Protected system. Web. UI. webcontrols. Button BTN;
Protected system. Web. UI. webcontrols. Label label1;
Protected system. Web. UI. htmlcontrols. htmlinputhidden RD;

Icollection createdatasource ()
{
Datatable dt = new datatable ();
Datarow Dr;
DT. Columns. Add (New datacolumn ("integervalue", typeof (int32 )));
DT. Columns. Add (New datacolumn ("stringvalue", typeof (string )));
DT. Columns. Add (New datacolumn ("currencyvalue", typeof (double )));
For (INT I = 0; I <101; I ++)
{
Dr = DT. newrow ();
Dr [0] = I;
Dr [1] = "item" + I. tostring ();
Dr [2] = 1.23 * (I + 1 );
DT. Rows. Add (DR );
}
Dataview DV = new dataview (DT );
Return DV;
}

Private void page_load (Object sender, system. eventargs E)
{
// Place the user here Code To initialize the page
String JS = "";
JS + = "<SCRIPT> \ r \ n ";
JS + = "function LD () {\ r \ n ";
JS + = "for (I = 0; I <document. getelementsbyname ('radioname'). length; I ++) \ r \ n ";
JS + = "If (document. getelementsbyname ('radioname') [I]. value = ";
JS + = "document. getelementbyid ('" + RD. clientid + "'). Value )";
JS + = "document. getelementsbyname ('radioname') [I]. Checked = true \ r \ n ";
JS + = "} \ r \ n"; JS + = "window. onload = LD \ r \ n ";
JS + = "</" + "script> \ r \ n ";
This. registerstartupscript ("JS", JS );
If (! Ispostback)
{
Itemsgrid. datasource = createdatasource ();
Itemsgrid. databind ();
}

}

Public void grid_change (Object sender, datagridpagechangedeventargs E)
{
Itemsgrid. currentpageindex = E. newpageindex;
Itemsgrid. datasource = createdatasource ();
Itemsgrid. databind ();
}

Public void btnclick (Object sender, eventargs E)
{
If (request. Form ["radioname"]! = NULL)
{
Rd. value = request. Form ["radioname"]. tostring ();
Label1.text = "your choice is: <font color = Red>" + request. Form ["radioname"]. tostring () + "</font> ";
}
}

# Code generated by region web Form Designer
Override protected void oninit (eventargs E)
{
//
// Codegen: This call is required by the ASP. NET web form designer.
//
Initializecomponent ();
Base. oninit (E );
}

/// <Summary>
/// The designer supports the required methods-do not use the code editor to modify
/// Content of this method.
/// </Summary>
Private void initializecomponent ()
{
This. Load + = new system. eventhandler (this. page_load );

}
# Endregion
}
}