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RadGrid OnDeleteCommand mapped to multiple gridcolumns

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Prabal
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Prabal asked on 21 Oct 2013, 07:40 PM
I have 2 GridButtonColumns mapped to distinct Items..  a hyperlink Activate/De-Activate and and the 2nd item contains an imageButton for Delte both of which map to CommandName="Delete". In the OnDeleteCommand handler for the grid in the code behind how do I distinguish the GridEditableItem ImageButton with uniqueName="Delete" from trhe hyperlink with UniqueName="De-Activate" ?  I have tried retrieving sender.Gettype.Name and some other ways but do not see a straightforward way to tell which control sent the Delete Command in the handler. Please provide some insight at the earliest. Version used is 2010.35... etc.


<telerik:GridButtonColumn CommandName="Delete" HeaderText="" UniqueName="De-Activate"
                                HeaderStyle-Width="80px" ConfirmDialogType="Classic">
                            </telerik:GridButtonColumn>
                             <telerik:GridButtonColumn CommandName="Delete" HeaderText="Delete" ButtonType="ImageButton"
                                UniqueName="Delete" Text="Delete" HeaderStyle-Width="80px" ConfirmDialogType="Classic">
                            </telerik:GridButtonColumn>

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Princy
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answered on 22 Oct 2013, 10:42 AM
Hi Prabal,

In order to identify which button click,you can use the CommandArgument for the buttons.

ASPX:
<telerik:GridButtonColumn CommandName="Delete" UniqueName="De-Activate" CommandArgument="De-Activate" . . .>
</telerik:GridButtonColumn>
<telerik:GridButtonColumn CommandName="Delete" CommandArgument="Delete" UniqueName="Delete"  . . . . >
</telerik:GridButtonColumn>

C#:
protected void DeleteCommand(object source, GridCommandEventArgs e)
{
    GridEditableItem item = (GridEditableItem)e.Item;
    if (e.CommandArgument == "De-Activate")
    {
       //Code
    }
    else if(e.CommandArgument == "Delete")
    {
      //Code
    }
}

Thanks,
Princy
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Prabal
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answered on 22 Oct 2013, 01:12 PM
Thanks Princy.. I'll let you know if that works out shortly.
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Prabal
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answered on 22 Oct 2013, 04:53 PM
If I don't put a commandargument for De-Activate in the code behind what is the default e.commandargument value when none exist? Do i check for it=null first?
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Princy
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answered on 23 Oct 2013, 02:43 AM
Hi Prabal,

If you don't set any value for the CommandArgument, by default it's empty.You may check the condition as follows:

C#:
if (e.CommandArgument == "")
{
//Your Code
}

Thanks,
Princy
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Prabal
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answered on 31 Oct 2013, 05:47 PM
<telerik:RadGrid ID="rgConveyanceFilters" runat="server" AutoGenerateColumns="false" AllowSorting="true" Visible="false"
                    GridLines="Both" OnNeedDataSource="rgConveyanceFilters_OnNeedDataSource" OnItemDataBound="rgConveyanceFilters_OnItemDataBound"
                    Width="600px" OnUpdateCommand="rgConveyanceFilters_OnUpdateCommand" OnInsertCommand="rgConveyanceFilters_OnInsertCommand"
                    OnDeleteCommand="rgConveyanceFilters_OnDeleteCommand">
 
 
<telerik:GridButtonColumn CommandName="Delete" HeaderText="" UniqueName="De-Activate"
                                HeaderStyle-Width="80px" ConfirmDialogType="Classic">
                            </telerik:GridButtonColumn>
                            <telerik:GridButtonColumn CommandName="Delete" HeaderText="Delete" ButtonType="ImageButton"
                                UniqueName="Delete" CommandArgument="DeleteFilter" HeaderStyle-Width="80px" ConfirmDialogType="Classic">
                            </telerik:GridButtonColumn>
that worked out well.. I have another related question about custom commands. Can I have a custom Command="DeActivate" instead of mapping both my Delete and DeActivate to OnDeleteCommandName thru CommandName="Delete" in gridbuttoncolumn. Essentially is there a way to add custom commands besides the OnInsert/DeleteCommand and various others provided. If so how so that the code behind works seamlessly with it?
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Princy
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answered on 01 Nov 2013, 06:03 AM
Hi Prabal,

You can have custom CommandName for the GridButtonColumn, like CommandName="DeActivate" , but it can be obtained only through the OnItemCommand of the RadGrid. To know about commands that invoke the Rebind() implicitly, have a look into this documentation, such commands can be obtained at their respective events. For custom CommandName please do the following:

C#:
protected void RadGrid1_ItemCommand(object sender, Telerik.Web.UI.GridCommandEventArgs e)
{
    if (e.CommandName == "DeActivate")
    {
      //Code to delete
    }
}

Thanks,
Princy



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