IsExpanded

[Jokerwolf]

Hello,
When the data is loaded the DataLoaded event occeres, there we get the grid's Items.count and if Items.Count == 0 we need to expand the only row the grid holds.

[Milan]

Hi Jokerwolf,

Could you please share more information about the problem? If Items.Count is zero there will be no items to be shown and no row could be expanded?

Kind regards,
Milan
the Telerik team

[Jokerwolf]

If Items.count = 0 then there will be no rows. I need to automaticly expand the row if it is the only row in the grid.

[Jokerwolf]

Well, I've solved the problem by catching RowLoaded event and setting IsExpanded to true if grid.items.count == 1.

[Jokerwolf]

Still need help with auto close for rows. When we close an expanded row, all its child expanded rows should close too, so when we expand this row again  no child rows are expanded. I tried Row.IsVisibleChanged and it works fine, but that doesn't suite us, cause our application uses several tabs, so when we go to another tab, all rows becom invisible and close.

[Milan]

Hello Jokerwolf,

With today's Internal Build we will introduce new event of RadGridView called RowIsExpandedChanged which can be utilized in you application.

void clubsGrid_RowIsExpandedChanged(object sender, Telerik.Windows.Controls.GridView.RowEventArgs e)
{
    var row = e.Row as GridViewRow;
    var grid = e.OriginalSource as GridViewDataControl;

    // if row was collapsed and that row was on the root grid
    if (!row.IsExpanded && grid == this.rootGrid)
    {
        var childGrid = row.ChildrenOfType<GridViewDataControl>().FirstOrDefault();

        if (childGrid != null)
            childGrid.CollapseAllHierarchyItems();
    }
}

Best wishes,
Milan
the Telerik team