Display multiple popup on selection of rows in RadGrid

[Soumya]

Hi,

I have a requirement to display a radwindow for every selected row in the radgrid. The content of the window is different for each row.
When I select multiple rows and click on a button, I need to display the radwindow one after the other. For example, if I select 5 rows and click on the button, I need to display the window 5 times.

In the button click event, I have the below code. 

foreach (GridDataItem item in grid.SelectedItems)
{
    window.VisibleOnPageLoad = true;
    // Load the content for the window
}
However, the window gets loaded only once after completion of the foreach loop. 

I also tried setting the Visible property of the window instead of using VisibleOnPageLoad. But in this case, the window is not displayed at all. 
Is there a way to display the window first and then continue execution of foreach loop?

Thanks in advance.

Regards,
Sowmya

[Konstantin Dikov]

Hello Sounmya,

For achieving the desired result you will have to created new RadWIndow object for each selected item in the grid. You can also use RadWindowManager for handling the scenario.

Below is a simple example demonstrating how to create multiple RadWIndows for each selected item in the grid:

<telerik:RadButton runat="server" ID="RadButton1" Text="Show windows" OnClick="RadButton1_Click"></telerik:RadButton>

<telerik:RadGrid runat="server" ID="RadGrid1" OnNeedDataSource="RadGrid1_NeedDataSource" AllowMultiRowSelection="true" ClientSettings-Selecting-AllowRowSelect="true">
</telerik:RadGrid>

<telerik:RadWindowManager runat="server" ID="RadWindowManager1"></telerik:RadWindowManager>

And the code-behind:

protected void RadGrid1_NeedDataSource(object sender, GridNeedDataSourceEventArgs e)
{
    DataTable table = new DataTable();
    table.Columns.Add("ID", typeof(int));
    table.Columns.Add("FirstName", typeof(string));
    table.Columns.Add("LastName", typeof(string));
    table.Columns.Add("Age", typeof(int));
    table.Columns.Add("Date", typeof(DateTime));
    table.Columns.Add("BoolValue", typeof(Boolean));
    for (int i = 0; i < 5; i++)
    {
        table.Rows.Add(i, "FirstName" + i, "LastName" + i, 20 + i, DateTime.Now.AddDays(i), i % 2 == 0);
    }

    (sender as RadGrid).DataSource = table;
}

protected void RadButton1_Click(object sender, EventArgs e)
{
    int count = 0;
    RadWindowManager1.Windows.Clear();
    foreach (GridDataItem item in RadGrid1.SelectedItems)
    {
        RadWindow window = new RadWindow();
        Label testLabel = new Label();
        testLabel.Text = item.ItemIndex.ToString();
        window.ID = "RadWindow" + count;
        window.ContentContainer.Controls.Add(testLabel);
        window.VisibleOnPageLoad = true;
        RadWindowManager1.Windows.Add(window);
        count++;
        //for changing the position of each window
        window.Top = Unit.Pixel((int)Math.Round(200 + window.Top.Value + count * 20));
        window.Left = Unit.Pixel((int)Math.Round(200 + window.Left.Value + count * 20));
    }
}

Hope this helps.


Regards,
Konstantin Dikov
Telerik