Hide / Disable Expand column

[Avi]

Hello All,

I have a report which show data hierarchical data with three levels of grid.

I have used the nested view template for this.

Also, i have a selection on the top of the page, which allows the user to select the no of nested grids.

So, i need to hide the expand/collapse column based on the selection made.

Let me know, how should i approach to this.

Thanks,

Avi

[Princy]

Hello Avi,

Try the following code in order to hide the Expand/Collapse column in hierarchy.

C#:

    protected void RadGrid1_ColumnCreated(object sender, GridColumnCreatedEventArgs e)
    {
        if (e.Column.UniqueName == "ExpandColumn")
        {
            e.Column.Visible = false;
        }
    }

Regards,
Princy.

[Ed McCarroll]

There are a number of similar posts, all trying to hide the expand/collapse column under one circumstance or another.

Has anybody come up with a solution for this yet?  I'm using Q1 2010 Asp.Net AJAX, .Net 3.5, with the Web20 skin, and I simply want the expand/contract column to disappear.

[Princy]

Hello Ed McCarroll,

You can also try any of following approaches to hide the Expand/Collapse column.

1: Add the following CSS in your page.
CSS:

 <style type="text/css">
        .rgExpandCol
        {
            display:none !important;
        }
 </style>

 2: Try the following code in PreRender event.
C#:
 

protected void RadGrid1_PreRender(object sender, EventArgs e)
    {
        RadGrid1.MasterTableView.ExpandCollapseColumn.Display = false;
    }

Thanks,
Princy.

[Ed McCarroll]

Thanks, Princy, the CSS did the trick.

OTOH, using ExpandCollapseColumn.Display in the code-behind caused the same kind of header mismatch discussed in other posts.

But problem solved, and "You da man!"

[Cameron Stitt]

I just worked out another way to do this without css for those that are interested.

    protected void RadGrid1_PreRender(object sender, EventArgs e)
    {
      RadGrid1.MasterTableView.ExpandCollapseColumn.Display = false;
      if(!Page.IsPostBack)
      {
        foreach (Telerik.Web.UI.GridDataItem item in RadGrid1.MasterTableView.Items)
        {
          item.Expanded = true;
          item.ChildItem.Cells[0].Visible = false;
        }
      }
    }

[Chanan Zass]

We have a 4-level hierarchical RadGrid and would like to show or hide the expand/collapse column in certain levels.

while the following works (expand/collapse column is  hidden on all levels)

RadGrid1.MasterTableView.ExpandCollapseColumn.Visible = False

this does not:

RadGrid1.MasterTableView.DetailTables(0).ExpandCollapseColumn.Visible = False

In other words, we can't seem to be able to control the expand/collapse column in DetailTables programmatically (the above code is included in the Page_Load method.

I should say that these other calls work with no problem:

RadGrid1.MasterTableView.DetailTables(0).Name = "Buyers"
RadGrid1.MasterTableView.DetailTables(0).CommandItemSettings.ShowAddNewRecordButton = False
RadGrid1.MasterTableView.DetailTables(0).DetailTables(0).Visible = False

Any idea why?

[Oleg]

RadGrid1.MasterTableView.ExpandCollapseColumn.Visible = False

work fine, thanks!