Expand collapse problem

[ajay]

Respected sir,

 

Thank you for giving me solution to expand collapse functionality. Of rad grid

 

protected void RadGrid1_PreRender(object sender, EventArgs e)

{

foreach (GridDataItem item in RadGrid1.MasterTableView.Items)

{

if (item.Expanded)

{

foreach (GridTableView childTableView in item.ChildItem.NestedTableViews)

{

foreach (GridDataItem childitem in childTableView.Items)

{

childitem.Expanded = true;                                         }                               }

}

}

}

 

 

 

, now I want to call this function on update event of parent. I.e. if I click on update button its child items should expand.

Following is the code I have written for same,

 

protected void gvClientSetup_ItemCommand(object source, Telerik.Web.UI.GridCommandEventArgs e)

    {

        if (e.CommandName != "ExpandCollapse")

        {

            if (e.Item.OwnerTableView.Name == "gvClientSetup")

            {

 

                if (e.CommandName == "PerformInsert" || e.CommandName == "Update")

                {

                    gvClientSetup_Insert_Update(source, e);

                    gvClientSetup_PreRender(source, e);  

                               }

                                bindGrid()

                      }

               }

}             

 

It jump to pre render procedure , but  if (item.Expanded)  returns false

How should I make this to return true so that it will expand child items

 

Thanks.

Ajay

[Shinu]

Hi Ajay,

One suggestion will be to expand the item in the ItemCommand event and then expand the child item in the PreRender event.

CS:

  protected void RadGrid1_ItemCommand(object source, GridCommandEventArgs e)
    {
        if (e.CommandName == "UpdateItem")
        {
            GridDataItem item = (GridDataItem)e.Item;
            item.Expanded = true;

        }
    }

 protected void RadGrid1_PreRender(object sender, EventArgs e)
    {
        foreach (GridDataItem item in RadGrid1.MasterTableView.Items)
        {
            if (item.Expanded)
            {
                GridTableView childTableView = item.ChildItem.NestedTableViews[0];

                foreach (GridDataItem childitem in childTableView.Items)
                {
                    childitem.Expanded = true;
                }
            }
        }
    }

Thanks
Shinu.

[ajay]

hi shinu


I have tried that code but it gives Exception on casting 

 GridDataItem item =  (GridDataItem )e.Item; 

 

[ajay]

Unable to cast object of type 'Telerik.Web.UI.GridEditFormItem' to type 'Telerik.Web.UI.GridDataItem'.

This is the exception