Hello,
I have a hierarchy grid with one nested level.
I'm having some issues with HierarchyLoadMode setting set to Client on my grid.
I load my grid on during Page_Load event, and it is loaded without any issues.
After that, the event to load the DetailTable is called:
I get an exception - + ex {"Invalid attempt to call FieldCount when reader is closed."}
I am not sure what I'm doing wrong, because if I don't set hierarchyModeLoad to Client, the exact same code runs without any issues, and I can expand/collapse the rows.
I would appreciate any help.
I have a hierarchy grid with one nested level.
I'm having some issues with HierarchyLoadMode setting set to Client on my grid.
I load my grid on during Page_Load event, and it is loaded without any issues.
After that, the event to load the DetailTable is called:
protected
void
RadGrid1_DetailTableDataBind(
object
source, Telerik.Web.UI.GridDetailTableDataBindEventArgs e)
{
GridDataItem dataItem = (GridDataItem)e.DetailTableView.ParentItem;
string
paramID = dataItem.GetDataKeyValue(
"Param_Id"
).ToString();
string
sConnectionString =
"My Connection String"
;
SQLDataSource1.SelectParameters[
"ModelIdParam"
].DefaultValue = paramID ;
SQLDataSource1.ConnectionString = sConnectionString;
e.DetailTableView.DataBind();
}
I am not sure what I'm doing wrong, because if I don't set hierarchyModeLoad to Client, the exact same code runs without any issues, and I can expand/collapse the rows.
I would appreciate any help.