The first time, will not write. Directly give you the original file !!
The principle is to use JS over all Checkbox to set all Checkbox unchecked, and then set the clickable checkbox to select
The following is .aspx file
<% @ Page language = "c #" codebehind = "Webform1.aspx.cs" autoeventwireup = "false" inherits = "DataGridCheck.webform1"%>
Webform1 </ title> <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"> <SCRIPT language = "JavaScript"> function SetCheckBoxState () {var DOM = Document.all; var = event.srcelement; if (el.tagname == "infut" && el.type.tolowercase () == "checkbox") {for (i = 0; i <dom.length; i ) ) {IF (DOM [i] .tagname == "Input" && Dom [i] .type.tolowercase () == "checkbox") {DOM [i] .Checked = false;}}} el.checked =! EL .checked;} </ script> </ head> <body ms_positioning = "gridlayout"> <form id = "form1" method = "post" runat = "server"> <font face = "Song body"> <asp: datagrid ID = "DG" Style = "z-index: 101; Left: 168px; position: absolute; top: 40px" Runat = "server" width = "440px" autogeneratecolumns = "false"> <columns> <ask: templateColumn> <itemtemplate> <asp : Checkbox id = "</p>
<p>chkExport "runat =" server "> </ asp: CheckBox> </ ItemTemplate> </ asp: TemplateColumn> <asp: BoundColumn DataField =" IntegerValue "> </ asp: BoundColumn> <asp: BoundColumn DataField =" StringValue "> </ asp: boundcolumn> <ask: BoundColumn Datafield = "currencyvalue"> </ ask: BOUNDCOLUMN> </ columns> </ ask: DataGrid> <asp: button id = "style =" z-index: 102; Left: 168px; position: absolute; top: 8px "Runat =" server "text =" Display content "> </ asp: button> </ font> </ form> </ body> </ html> The following is a CS file</p>
<p>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 DataGridCheck {/// <summary> /// WebForm1 summary description. /// </ summary> public class WebForm1: System.Web.UI.Page {protected System.Web.UI.WebControls.Button Button1; protected System.Web.UI.WebControls.DataGrid dg; private void Page_Load (object sender, System.eventargs e) {// Place the user code here to initialize the page if (! Page.ispostback) {dg.datasource = createDataSource (); DG.DATABIND ();}} iCollection createDataSource ()} iCollection createDataSource ()}} iCollection created () DataBe (); DTAROW DR; DT.COLUMNS.ADD (New Datacolumn ("IntegerValue", TypeOf (INT32))); DT.Columns.Add (New Datacolumn ("StringValue", TypeOf (String)); Dt.columns .Add ("currencyvalue", Typeof (Double))); for (int i = 0; i <9; 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;}</p>
<p>#Region Web Form Designer Generated Code Override Protected Void OnNit (Eventargs E) {// // Codegen: This call is required for the ASP.NET Web Form Designer. // InitializeComponent (); base.onit (e);} /// <summary> /// Designer Supports the required method - Do not use the code editor to modify the // / this method. /// </ summary> private void InitializeComponent () {this.dg.ItemDataBound = new System.Web.UI.WebControls.DataGridItemEventHandler (this.dg_ItemDataBound); this.Button1.Click = new System.EventHandler (this. Button1_click; this.load = new system.eventhandler (this.page_load);} #ENDREGION</p>
<p>private void Button1_Click (object sender, System.EventArgs e) {System.Web.UI.WebControls.CheckBox chkExport; foreach (DataGridItem dgItem in dg.Items) {chkExport = (CheckBox) dgItem.FindControl ( "chkExport"); if ( Chkexport.checked) {response.write ("<script> Alert ('" DGItem.cells [2] .text "and" DGItem.cells [3] .text ") </ script>");}} }</p>
<p>private void dg_ItemDataBound (object sender, System.Web.UI.WebControls.DataGridItemEventArgs e) {if (e.Item.ItemIndex <0) return; if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem) {System.Web.UI.WebControls.CheckBox chkExport; chkExport = (CheckBox) e.Item.FindControl ( "chkExport"); chkExport.Attributes.Add ( "OnClick", "SetCheckBoxState ()") E.Item.attributes.add ("onmouseover", "currentcolor = this.style.backgroundcolor; this.style.backgroundcolor = '48d1cc'"); E.Item.attributes.add ("onmouseout", "this.style .BackgroundColor = CurrentColor ");}}</p>
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