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[Solved] Checkbox Select

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Grid

This is a migrated thread and some comments may be shown as answers.

David asked on 17 Jan 2008, 09:30 PM

I am attempting to replicate the behavior found in this example:
http://www.telerik.com/DEMOS/ASPNET/Prometheus/Grid/Examples/Programming/SelectRowWithCheckBox/DefaultCS.aspx

I have everything setup virtually identically as far as I can tell with the exception that I am binding my datasource in the codebehind. What is happening is that whenever I click a checkbox it says "loading" then the box is unchecked and the row is not selected. I will post my code below just in case I have something wrong.

thanks
~David

<asp:ScriptManager ID="ScriptManager1" runat="server" />
<telerik:RadAjaxManager ID="RadAjaxManager1" EnableAJAX="true" runat="server">
 <AjaxSettings>
 <telerik:AjaxSetting AjaxControlID="myTasksDG">
 <UpdatedControls>
 <telerik:AjaxUpdatedControl ControlID="myTasksDG" />
 </UpdatedControls>
 </telerik:AjaxSetting>
 </AjaxSettings>
</telerik:RadAjaxManager>

<telerik:RadGrid id="myTasksDG"
 OnItemCreated="myTasksDG_ItemCreated"
 ShowStatusBar="true"
 runat="server"
 AllowPaging="True"
 AllowSorting="True"
 PageSize="3"
 AllowMultiRowSelection="true"
 GridLines="None"
 Skin="WebBlue"
 AutoGenerateColumns="False"
 OnPreRender="myTasksDG_PreRender">
 <MasterTableView ShowFooter="True">
 <Columns>
 <telerik:GridBoundColumn visible="True" datafield="TICK_ID" readonly="True" headertext="ID"></telerik:GridBoundColumn>
 <telerik:GridBoundColumn visible="False" datafield="APP_LOCATION" readonly="True" headertext="ID"></telerik:GridBoundColumn>
 <telerik:GridBoundColumn visible="True" datafield="APP_USER" readonly="True" headertext="Submitted By:"></telerik:GridBoundColumn>
 <telerik:GridBoundColumn visible="True" datafield="APP_WORKER" readonly="True" headertext="Assigned To:"></telerik:GridBoundColumn>
 <telerik:GridBoundColumn visible="True" datafield="APP_NAME" readonly="True" headertext="Form Type:"></telerik:GridBoundColumn>

 <telerik:GridTemplateColumn HeaderText="Time in Que:">
 <ItemTemplate>
 "> <%#DataBinder.Eval(Container.DataItem , "TIME_IN_QUE")%>
 </ItemTemplate>
 </telerik:GridTemplateColumn>

 <telerik:GridTemplateColumn UniqueName="CheckBoxTemplateColumn">
 <HeaderTemplate>
 <asp:CheckBox id="headerChkbox" OnCheckedChanged="ToggleSelectedState" AutoPostBack="True" runat="server"></asp:CheckBox>
 </HeaderTemplate>
 <ItemTemplate>
 <asp:CheckBox id="CheckBox1" OnCheckedChanged="ToggleRowSelection" AutoPostBack="True" runat="server"></asp:CheckBox>
 </ItemTemplate>
 </telerik:GridTemplateColumn>


 </Columns>
 </MasterTableView>


 <PagerStyle Mode="NextPrevAndNumeric" />
 </telerik:RadGrid>

 protected void ToggleRowSelection(object sender, EventArgs e)
 {
 ((sender as CheckBox).Parent.Parent as GridItem).Selected = (sender as CheckBox).Checked;
 }

 protected void myTasksDG_ItemCreated(object sender, GridItemEventArgs e)
 {
 if (e.Item is GridDataItem)
 {
 e.Item.PreRender += new EventHandler(myTasksDG_ItemPreRender);
 }
 }

 private void myTasksDG_ItemPreRender(object sender, EventArgs e)
 {
 ((sender as GridDataItem)["CheckBoxTemplateColumn"].FindControl("CheckBox1") as CheckBox).Checked = (sender as GridDataItem).Selected;
 }



 protected void ToggleSelectedState(object sender, EventArgs e)
 {
 if ((sender as CheckBox).Checked)
 {
 foreach (GridDataItem dataItem in myTasksDG.MasterTableView.Items)
 {
 (dataItem.FindControl("CheckBox1") as CheckBox).Checked = true;
 dataItem.Selected = true;
 }
 }
 else
 {
 foreach (GridDataItem dataItem in myTasksDG.MasterTableView.Items)
 {
 (dataItem.FindControl("CheckBox1") as CheckBox).Checked = false;
 dataItem.Selected = false;
 }
 }
 }

 protected void myTasksDG_PreRender(object sender, EventArgs e)
 {
 string text = "Selected rows: " + myTasksDG.SelectedItems.Count;
 myTasksDG.Controls.Add(new LiteralControl(string.Format("{0}", text)));
 }

[Solved] Checkbox Select

4 Answers, 1 is accepted