Unable to update underlying datasource

[Dan Harvey]

Hello,

I am using a RadGrid and I am binding an Arraylist of type "myClass" (name property, id Property and several boolean properties).  I am using this arrayList as my datasource for the grid and I am using checkbox columns for the boolean properties.

public interface IMyClass

    {     
           int EntityID{get; set; }


        string Name { get; set; }

        bool IsPrivateReader { get; set; }

        bool CanShare { get; set; }

    }

The issue I am having is that when I check a checkbox it does not update the object it is bound to.  Please help.  Here is my grid:

<telerik:RadGrid ID="dg"
                             runat="server"
                             AllowSorting="True"
                             AllowAutomaticUpdates="True"
                             Skin="WebBlue"
                             EnableAJAX="true"
                             EnableOutsideScripts="true"
                             GridLines="None">
             <ClientSettings>
                 <Selecting CellSelectionMode="None" />
             </ClientSettings>
             <MasterTableView AllowAutomaticDeletes="true" AutoGenerateColumns="False"
                 CommandItemDisplay="None" DataKeyNames="EntityID" Width="100%">
                 <CommandItemSettings ExportToPdfText="Export to PDF" />
                 <RowIndicatorColumn>
                     <HeaderStyle Width="20px" />
                 </RowIndicatorColumn>
                 <ExpandCollapseColumn>
                     <HeaderStyle Width="20px" />
                 </ExpandCollapseColumn>
                 <Columns>

                     <telerik:GridBoundColumn DataField="EntityID" HeaderStyle-HorizontalAlign="Center" HeaderText="Entity ID" ItemStyle-HorizontalAlign="Left" SortExpression="EntityID">
                         <HeaderStyle HorizontalAlign="Center" />
                         <ItemStyle HorizontalAlign="Left" />
                     </telerik:GridBoundColumn>
                     <telerik:GridBoundColumn DataField="Name" HeaderStyle-HorizontalAlign="Center" HeaderText="Name" ItemStyle-HorizontalAlign="Left" SortExpression="Name">
                         <HeaderStyle HorizontalAlign="Center" />
                         <ItemStyle HorizontalAlign="Left" />
                     </telerik:GridBoundColumn>
                     <telerik:GridTemplateColumn headertext="Private Reader" uniquename="PrivateReaderColumn">
                         <itemtemplate>
                             <asp:CheckBox ID="cbxPrivateReader" runat="server" checked='<%# Eval("IsPrivateReader") %>' />
                         </itemtemplate>
                         <edititemtemplate>
                             <asp:CheckBox ID="cbxPrivateReader" runat="server" checked='<%# Bind("IsPrivateReader") %>' />
                         </edititemtemplate>
                     </telerik:GridTemplateColumn>
                     <telerik:GridTemplateColumn headertext="Share" uniquename="SharedColumn">
                         <itemtemplate>
                             <asp:CheckBox ID="cbxShare" runat="server" checked='<%# Eval("CanShare") %>' />
                         </itemtemplate>
                         <edititemtemplate>
                             <asp:CheckBox ID="cbxShare" runat="server" checked='<%# Bind("CanShare") %>' />
                         </edititemtemplate>
                     </telerik:GridTemplateColumn>
                     <telerik:GridTemplateColumn AllowFiltering="true" HeaderText=" "
                         Reorderable="true" ShowSortIcon="true" SortExpression="Name">
                         <ItemTemplate>
                             <asp:ImageButton ID="btnDelete" runat="server" CausesValidation="False"
                                 CommandName="DeleteSelected" ImageUrl="~/Images/Delete.gif"
                                 OnClientClick="return GetUserConfirmForItemDelete(event);"
                                 ToolTip="Delete Record" />
                         </ItemTemplate>
                     </telerik:GridTemplateColumn>
                 </Columns>
                 <EditFormSettings>
                     <EditColumn FilterControlAltText="Filter EditCommandColumn column">
                     </EditColumn>
                 </EditFormSettings>
             </MasterTableView>
             <FilterMenu EnableTheming="True" Skin="WebBlue">
                 <CollapseAnimation Duration="200" Type="OutQuint" />
             </FilterMenu>
         </telerik:RadGrid>

This is my datasource:

protected void Page_Load(object sender, EventArgs e)

        {

            if(!Page.IsPostBack)

            {

                ViewState["DataSource"]  = new ArrayList();

                SetInitialJavaScriptFunctions();

            }

        }

  

        private ArrayList DataSource { get { return (ArrayList)ViewState["DataSource"]; }

private

 

 

void BindDataGrid(string strSortExpression = "", SortDirection eSortDirection = SortDirection.Ascending)

 

{

     dg.DataSource = DataSource;

     dg.DataBind();

}

What am I missing?

Thanks

[Kevin]

Hello Dan,

I don't believe the automatic update feature of the RadGrid works without being bound to a DataSource control. So you'll need to perform the updates manually by handling the UpdateCommand, InsertCommand and DeleteCommand events and modify your datasource that way.

I hope that helps.

[Dan Harvey]

Hey Kevin,

My UpdateCommand is not firing.  Could you help me?  What I want is for when a user clicks on a checkbox in the row to be able to update that object bound to that row (so, checking the box i would like to set that property to true).

I sample application would be appreciated.

Thanks,

[Antonio Stoilkov]

Hello Dan,

I have assembled a sample project demonstrating the desired functionality. You could try implementing it and if you have any related questions to contact us.

Kind regards,
Antonio Stoilkov
the Telerik team

[Dan Harvey]

Oh great.  This was exactly what I was looking for.

Thanks!