[Solved] Getting index is outside the bounds of the array error whenever trying to access items on RowDrop

[Josh]

Getting this error whenever accessing the grid, this is basically the code, I get an error on both enumerations... I've alse tried using e. DestinationGrid instead of this.radGrid...

protected void radGrid_RowDrop(object sender, GridDragDropEventArgs e)
{
    foreach(GridDataItem gridItem in this.radGrid.MasterTableView.Items)
    {
        //do stuff...
    }

foreach (GridDataItem draggedItem in e.DraggedItems)
    {
           //do stuff
    }

}

 Edit - this grid is in a radajax panel if it makes any difference -

[Sebastian]

Hello Josh,

It seems that in your case the dragged items/the Items collection of the grid are empty due to some reason and you receive the exception. Can you trace the reason for that or paste your grid declaration along with its code-behind in order to advice you further?

Kind regards,
Stephen
the Telerik team

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[Josh]

Here are the declarations:



<telerik:RadGrid ID="rGrid" runat="server" Width="100%" AllowMultiRowSelection="true"

EnableEmbeddedSkins="false" Skin="Black" ImagesPath="../Skins/Black/Grid" AutoGenerateColumns="false"

GridLines="Both" ShowHeader="true" OnRowDrop="rGrid_RowDrop">

<ClientSettings AllowRowsDragDrop="true">

<Selecting AllowRowSelect="true" EnableDragToSelectRows="true" />

</ClientSettings>

<MasterTableView Width="97%" CommandItemDisplay="None" AutoGenerateColumns="false"

DataKeyNames="ID" TableLayout="Auto" HeaderStyle-HorizontalAlign="Center"

HeaderStyle-VerticalAlign="Middle" HeaderStyle-Wrap="false" NoMasterRecordsText="No items.">

<Columns>

<telerik:GridBoundColumn DataField="ID" HeaderText="ID" UniqueName="ID"

Visible="false">

</telerik:GridBoundColumn>

<telerik:GridTemplateColumn DataField="Checked" HeaderText="Show" UniqueName="Checked"

Visible="true" ItemStyle-HorizontalAlign="Center" ItemStyle-VerticalAlign="Middle"

HeaderStyle-HorizontalAlign="Center" HeaderStyle-VerticalAlign="Middle" ItemStyle-Height="20px"

HeaderStyle-Height="30px">

<ItemTemplate>

<asp:CheckBox runat="server" ID="displayCheckbox" Checked='<%# DataBinder.Eval(Container, "DataItem.Checked") %>' />

</ItemTemplate>

</telerik:GridTemplateColumn>

<telerik:GridBoundColumn DataField="Name" HeaderText="Name" UniqueName="Name"

Visible="true" ItemStyle-Wrap="true" ItemStyle-HorizontalAlign="Left" ItemStyle-VerticalAlign="Middle"

HeaderStyle-HorizontalAlign="Center" HeaderStyle-VerticalAlign="Middle" ItemStyle-Height="20px"

HeaderStyle-Height="30px" ReadOnly="true">

</telerik:GridBoundColumn>

</Columns>

</MasterTableView>

</telerik:RadGrid>



Function to load grid data (it's in a radajax panel):

private void displaySettingsPanelLoad(IPostBackEventHandler source, string eventArgs)

{

DataTable dTable = Function here to get table, I know for sure this works...

this.rGrid.DataSource = metadataTable;

this.rGrid.DataBind();

}

I do have another function to handle updates the grid checkboxes in the code-behind. This is working fine.

[Princy]

Hi Josh,

Try binding the Grid using AdvanceDataBinding techniques. Go through the following demo link for more details.
Advanced data-binding

Thanks
Princy.

[Josh]

That was helpful, I am rebuilding the datasource and binding the grid again and it's working well, thanks.