Grid is not refreshing in prerender event

[Yasar]

Hi,

I'm hiding some of the column of detail table view in prerender event but the grid is not refreshing .

once I expand and collapse the grid it's refreshing.

 

var hideColumn = DBContext.TankMeasurementTypes.Where(p => p.TankMeasurementType_id == strpID);

            foreach (var x in hideColumn)
            {
                if (x.FK_MeasurementId == 2)
                {
                    grdTakStrap.MasterTableView.DetailTables[0].GetColumn("Tot_Volumne").Visible = false;
                    grdTakStrap.MasterTableView.DetailTables[0].GetColumn("Est").Visible = true;
                    grdTakStrap.MasterTableView.DetailTables[0].GetColumn("Feetperinch").Visible = true;
                    grdTakStrap.MasterTableView.DetailTables[0].GetColumn("Increment_Start").Visible = true;
                    grdTakStrap.MasterTableView.DetailTables[0].GetColumn("Increment_End").Visible = true;
                    grdTakStrap.MasterTableView.DetailTables[0].GetColumn("StrapLength").Visible = true;
                    grdTakStrap.MasterTableView.DetailTables[0].CommandItemSettings.AddNewRecordText = "Add Strap";

                }
                else
                {
                    grdTakStrap.MasterTableView.DetailTables[0].GetColumn("Tot_Volumne").Visible = true;
                    grdTakStrap.MasterTableView.DetailTables[0].GetColumn("Est").Visible = false;
                    grdTakStrap.MasterTableView.DetailTables[0].GetColumn("Feetperinch").Visible = false;
                    grdTakStrap.MasterTableView.DetailTables[0].GetColumn("Increment_Start").Visible = false;
                    grdTakStrap.MasterTableView.DetailTables[0].GetColumn("Increment_End").Visible = false;
                    grdTakStrap.MasterTableView.DetailTables[0].GetColumn("StrapLength").Visible = false;
                    grdTakStrap.MasterTableView.DetailTables[0].CommandItemSettings.AddNewRecordText = "Add BBL/Inch";
                }

please help me for this issue

Regards,
Yasar

[Shinu]

Hello Yasar,

Try calling Rebind() method after hiding the columns.
C#:

grdTakStrap.MasterTableView.Rebind();

-Shinu.

[Yasar]

Hello Shinu,

I used your code grdTakStrap.MasterTableView.Rebind(); but expand and collapse is not working.

Regards,
Yasar

[Tsvetina]

Hello Yasar,

Can you confirm whether you have AJAX in the scenario and in such case, does the grid refresh correctly when you temporarily disable it? If so, review your AJAX settings, there may be something missing.

Other than this, you can try looping through the hierarchy as advised in the following help article and hiding the columns in this loop:
http://www.telerik.com/help/aspnet-ajax/grid-traversing-detail-tables-items-in-grid.html (section Looping through all detail tables/items in Telerik RadGrid)

Greetings,
Tsvetina
the Telerik team