[Solved] Accessing Items in Hierarchical Grids

[Andrew]

Hi

I am trying to access image buttons within my Hierarchical Grid. Although i dont seem to be able to get hold of anything in order to access them. I am trying to do this within the DetailTableDataBind event.

 

protected void RadGrid1_DetailTableDataBind(object source, Telerik.Web.UI.GridDetailTableDataBindEventArgs e)

 

{

 

GridDataItem parentItem = (GridDataItem)e.DetailTableView.ParentItem;

 

 

 

 

 

string CID = parentItem.GetDataKeyValue("TblAVCID").ToString();

 

 

var avService = new AVService();

 

 

    
using (TList<AV> avList = avService.GetByIntVisitCategory(Int32.Parse(CID.ToString())))

 

    {

        e.DetailTableView.DataSource = avList;

    }

((

ImageButton)parentItem["colDelete"].FindControl("imgDelete")).ImageUrl = txtImageDir + "16/data.gif";

 

 

I try binding to the imagebutton but this just errors out.

Any Help would be greatly appreciated.

Thanks

 

[Pavlina]

Hello Greg,

I suggest that you try accessing the  image buttons on ItemCreated/ItemDataBound event.
For more information about accessing cells and rows, please refer to this help article.

Kind regards,
Pavlina
the Telerik team

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[Andrew]

Hi

I think my problem may have been misunderstood.  I have looked at the link you sent , although i didnt see how i could incorporate this into what i was trying to do.
I think what i need is some sort of "onDetailTableItemCreated" method, like "ItemDataBound". As I dont see how i can traverse the hierarchical tables  and get the one i am currently in in order to do something like 

if (e.Item is GridDataItem)
{
var iObject = (GridDataItem)e.Item;
iObject["colExport"].FindControl("imgExport")).ImageUrl = ""
}

Thanks

[Princy]

Hello Greg,

You can set the Name property of the DetailTable and then in the ItemDataBound/ItemCreated event of the grid check for the name of the ownertableview and then traverse through the detail table items. Check out the code below to understand better:
aspx:

 <telerik:RadGrid ID="RadGrid2"  runat="server" DataSourceID="SqlDataSource1"  OnItemDataBound="RadGrid2_ItemDataBound" >
        <MasterTableView  DataSourceID="SqlDataSource1" Name="Master">
          <DetailTables>
             <telerik:GridTableView  DataSourceID="SqlDataSource2"  Name="Detail" runat="server" >

c#:

 protected void RadGrid1_ItemDataBound(object sender, GridItemEventArgs e)
    {
       if (e.Item is GridDataItem && e.Item.OwnerTableView.Name == "Detail")
        {
            GridDataItem item = (GridDataItem)e.Item;
            ((ImageButton)item["colExport"].FindControl("imgExport")).ImageUrl = ""
        }
    }

You can also refer to the following help article for more details on distinguishing between grid rows in a hierarchial grid:
Distinguish grid rows in hierarchy on ItemCreated/ItemDataBound



Thanks
Princy.

[Andrew]

Hi

Thanks very much, that worked brilliantly.

Thanks again