[Solved] How to show the detail grid in expanded mode always

[Bala]

Hello

Can some one tell me how to show the detail grid in expanded mode always and what are the settings in aspx and code behind, i tried setting "HierarchyDefaultExpanded = true" 
but it didnt helped me

Thank in advance
Bala

 

[Schlurk]

I think if you use this snippet of code it should work for you:

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        RadGrid1.MasterTableView.HierarchyDefaultExpanded = true;
        foreach (GridTableView gtv in RadGrid1.MasterTableView.DetailTables)
            gtv.HierarchyDefaultExpanded = true;
    }
}

[Bala]

Hi,

Thanks for the snippet but when I use this code, code in the data_bound is getting faild

protected

 

void radgrdCompliance_DataBound(object sender, EventArgs e)

 

{

 

 

foreach (GridDataItem item in radgrdCompliance.Items)

 

{

 

HyperLink prodnameLnk = (HyperLink)item["ProductName"].FindControl("ProdNameLnk"); ==> this is working earliber but when i use the code snippet , HiearchyExpanded = true, its failing, seems its trying to loop thru the child items as well how to fix this issue ?

 

 

HiddenField hd = (HiddenField)item["ProductName"].FindControl("hdnpid");

 

prodnameLnk.NavigateUrl =

Constants.ProductDetailsPage + "?" + Constants.qspProductId + "=" + hd.Value;

 

}

 

}

alslo do i need set any property in the aspx file ? currently 

 

HierarchyLoadMode

 

="ServerBind"

 

[Bala]

update
added the code in pre_render but no luck. it not showing in expanded mode only the > is changed "expanded mode

protected

 

void radgrdCompliance_PreRender(object sender, EventArgs e)

 

{

 

if (!Page.IsPostBack)

 

{

radgrdCompliance.MasterTableView.HierarchyDefaultExpanded =

true;

 

 

foreach (GridTableView gtv in radgrdCompliance.MasterTableView.DetailTables)

 

{ gtv.HierarchyDefaultExpanded =

true; }

 

}

}

[Sebastian]

Hello Bala,

If you want the code inside the OnDataBound handle to be executed for items in the master table only, your foreach loop should be modified as follows:

foreach (GridDataItem item in radgrdCompliance.MasterTableView.Items)

Additionally, the more convenient approach to set HierarchyDefaultExpanded = true for each level of the hierarchy would be directly in the grid markup as part of the MasterTableView/GridTableView tags. You may also be interested in this documentation topic which explains how to traverse grid items/tables in hierarchical grid.

Best regards,
Sebastian
the Telerik team

Instantly find answers to your questions on the new Telerik Support Portal.
Watch a video on how to optimize your support resource searches and check out more tips on the blogs.

[Princy]

Hello Bala,

Also the code that you have implemented in the PreRender event, should work if your rebind your grid as shown below:
c#:

protected void radgrdCompliance_PreRender(object sender, EventArgs e)
{
  if (!Page.IsPostBack)
  {
     radgrdCompliance.MasterTableView.HierarchyDefaultExpanded = true;
     foreach (GridTableView gtv in radgrdCompliance.MasterTableView.DetailTables)
      { gtv.HierarchyDefaultExpanded = true; }

    radgrdCompliance.Rebind();
  }
}

Hope this helps..
Princy.