Rebinding a grandchild grid

[CityArchitect]

Hello,

I have a RadGrid with MasterView, a child GridTableView, and then a further child GridTableView. On a Button firing in the child view I do this:

    protected void CIncludeConnection_Click(object sender, EventArgs e)
    {
        IncludeConnection_Click(sender, e);
        RebindChildren();
    }

    protected void CExcludeConnection_Click(object sender, EventArgs e)
    {
        ExcludeConnection_Click(sender, e);
        RebindChildren();
    }

 protected void RebindChildren()
    {
        GridTableView tableView = (GridTableView)ConnectionsGrid.MasterTableView.Items[0].ChildItem.NestedTableViews[0]; // accessing child gridview of first parentitem

        tableView.Rebind(); 
    }

which works fine, the grid view updates visually and no collapsing occurs.

The problem is with the Grandchild view where I do this:

    protected void GCIncludeConnection_Click(object sender, EventArgs e)
    {
        IncludeConnection_Click(sender, e);
        RebindGrandChildren();
    }

    protected void GCExcludeConnection_Click(object sender, EventArgs e)
    {
        ExcludeConnection_Click(sender, e);
        RebindGrandChildren();
    }

    protected void RebindGrandChildren()
    {
        GridTableView tableView = (GridTableView)ConnectionsGrid.MasterTableView.Items[0].ChildItem.NestedTableViews[0]; // accessing child gridview of first parentitem

        GridTableView nestedView = (GridTableView)tableView.Items[0].ChildItem.NestedTableViews[0]; // Accessing grandchild gridview

        nestedView.Rebind();
    }

Which works correctly but does not update visually at all.

Is there a generic method of addressing any grid at any depth and Rebinding without collapsing (a generic Masterview rebind collapses) from a button event given the sender object and the EventArgs?

protected void AnyConnectionOperation_Click(object sender, EventArgs e) ?

Thanks,

 

 

 

 

[Viktor Tachev]

Hi,

If you would like to keep the items in RadGrid expanded after postback you should set the RetainExpandStateOnRebind property of RadGrid to true.

Give the approach a try and see how the behavior changes.

Regards,
Viktor Tachev
Telerik

[CityArchitect]

Hello Victor,

I put in RetainExpandStateOnRebind which sounds really useful but didnt actually change anything immediately.

Then I called TableView.Rebind() for children AND grandchildren regardless of which tableView I was firing buttons from and it did the trick. Grids stayed expended and status updated visually.

Thanks!

 

Steve

 

 

 

[Viktor Tachev]

Hi,

I am glad that the suggestion was helpful to you.

Thank you for sharing your approach with the community.

Regards,
Viktor Tachev
Telerik