
Guillermo Aquino
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Rank 1
Guillermo Aquino
asked on 05 Jul 2010, 08:52 AM
I'm using a RadGridView for Silverlight - version Q2 2010
Firstly, my Grid hasn't groups,
My problem is that when i do the first grouping then items.groups property has a exception
+ base {System.InvalidCastException: Impossible d'effectuer un cast de l'objet de type 'Telerik.Windows.Examples.Customers' en type 'Telerik.Windows.Data.AggregateFunctionsGroup'.
On the other hand if i delete and re-create the same group, this error is not showing.
Firstly, my Grid hasn't groups,
My problem is that when i do the first grouping then items.groups property has a exception
+ base {System.InvalidCastException: Impossible d'effectuer un cast de l'objet de type 'Telerik.Windows.Examples.Customers' en type 'Telerik.Windows.Data.AggregateFunctionsGroup'.
On the other hand if i delete and re-create the same group, this error is not showing.
Thanks
Guillermo
4 Answers, 1 is accepted
0
Hi Guillermo Aquino,
I will try to reproduce the error here , can you please paste me your code ( XAML and codebehind ) , so that I can try build a small test app and see what is wrong. What I need is the XAML definition of RadGridView as well as the code-behind so I can see how do you bind RadGridView.
Best wishes,
Pavel Pavlov
the Telerik team
I will try to reproduce the error here , can you please paste me your code ( XAML and codebehind ) , so that I can try build a small test app and see what is wrong. What I need is the XAML definition of RadGridView as well as the code-behind so I can see how do you bind RadGridView.
Best wishes,
Pavel Pavlov
the Telerik team
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0

Guillermo Aquino
Top achievements
Rank 1
answered on 05 Jul 2010, 09:44 AM
Hi
for my test, I'm using the RowNumber Gridview Example for "RadControls for Silverlight Q2 2010".
XAML
Code-Behind
Thanks
Guillermo
for my test, I'm using the RowNumber Gridview Example for "RadControls for Silverlight Q2 2010".
XAML
<Examples:GridViewExample x:Class="Telerik.Windows.Examples.GridView.RowNumber.Example" |
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" |
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" |
xmlns:Examples="clr-namespace:Telerik.Windows.Examples" |
xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation" |
xmlns:custom="clr-namespace:Telerik.Windows.Examples.GridView.RowNumber"> |
<Grid> |
<Image Source="/GridView;component/Images/bg02.jpg" /> |
<telerik:RadGridView x:Name="RadGridView1" ItemsSource="{Binding Customers}" AutoGeneratingColumn="RadGridView1_AutoGeneratingColumn"> |
<telerik:RadGridView.Columns> |
<custom:MyColumn Header="#" Width="50" /> |
</telerik:RadGridView.Columns> |
</telerik:RadGridView> |
</Grid> |
</Examples:GridViewExample> |
Code-Behind
using Telerik.Windows.Data; |
using System.ComponentModel; |
using Telerik.Windows.Controls; |
namespace Telerik.Windows.Examples.GridView.RowNumber |
{ |
/// <summary> |
/// Interaction logic for Example.xaml |
/// </summary> |
public partial class Example |
{ |
public Example() |
{ |
InitializeComponent(); |
this.RadGridView1.Grouped += new System.EventHandler<Controls.GridViewGroupedEventArgs>(RadGridView1_Grouped); |
} |
private void RadGridView1_Grouped(object sender, GridViewGroupedEventArgs e) |
{ |
DataItemCollection dic = RadGridView1.Items; |
} |
private void RadGridView1_AutoGeneratingColumn(object sender, Telerik.Windows.Controls.GridViewAutoGeneratingColumnEventArgs e) |
{ |
if (e.Column.UniqueName == "Order" || e.Column.UniqueName == "Product") |
{ |
e.Cancel = true; |
} |
} |
} |
} |
Thanks
Guillermo
0

Guillermo Aquino
Top achievements
Rank 1
answered on 08 Jul 2010, 02:34 PM
Any solutions?
0
Hello Guillermo,
Vlad
the Telerik team
We were able to identify the problem and this issue will be fixed for our official release (next week). I've added 2000 Telerik points to your account.
Regards,Vlad
the Telerik team
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