Unable to add columns to GridView at runtime

[Sandi]

An unhandled exception of type 'System.OutOfMemoryException' occurred in Unknown Module.

A simple example of adding columns at runtime is causing the above error. Ideas anyone? Am I missing something?
The project is building and running fine untile it runs out of memory.

Thanks in advance for your help.

Sandi

xaml is:

<

 

UserControl x:Class="TestTelerik.MainPage"  

 

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"  

 

 

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

 

xmlns:grid="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.GridView" 

 

 

 

xmlns:gridView="clr-namespace:Telerik.Windows.Controls.GridView;assembly=Telerik.Windows.Controls.GridView" >

 

 

 

 

 

<Grid x:Name="LayoutRoot" >
<Grid.RowDefinitions>
<RowDefinition Height="25"/>

 

<RowDefinition Height="*"/>

 

 

</Grid.RowDefinitions>

 

 

 

<grid:RadGridView Grid.Row="1" x:Name="dataGrid" AutoGenerateColumns="False" ColumnsWidthMode="Auto" CanUserFreezeColumns="False" />

 

 

</Grid>

 

 </

 

UserControl>

 

 

 

Underlying code is:

using

 

System;  

 

 

using

 

System.Collections;  

 

 

using 

 

System.Collections.Generic;

 

 

using System.Collections.ObjectModel;

 

 

using System.Linq;

 

 

using System.Net;

 

 

using System.Windows;

 

 

using System.Windows.Controls;

 

 

using System.Windows.Documents;

 

 

using System.Windows.Input;

 

 

using System.Windows.Media;

 

 

using System.Windows.Media.Animation;

 

 

using System.Windows.Shapes;

 

 

using Telerik.Windows.Controls;

 

 

 

namespace 

 

TestTelerik

 

 { 

 

public partial class MainPage : UserControl  

 

 

{

public MainPage()  

 

{

InitializeComponent(); 

 

this.dataGrid.AutoGenerateColumns = false; 

 

this.dataGrid.Columns.Add(CreateColumn(typeof(int), "OrderID"));  

 

 

this.dataGrid.Columns.Add(CreateColumn(typeof(string), "Employee.FirstName"));

 

this.dataGrid.Columns.Add(CreateColumn(typeof(string), "Employee.LastName"));

 

 

this.dataGrid.Columns.Add(CreateColumn(typeof(string), "Employee.HomePhone"));

 

 }

 

 

private static GridViewDataColumn CreateColumn(Type columnType, string dataPath)

{ 

 

GridViewDataColumn dataGridColumn = new GridViewDataColumn();  

dataGridColumn.DataType = columnType;

dataGridColumn.UniqueName = dataPath;

dataGridColumn.HeaderText = dataPath; 

 

return dataGridColumn; 
}

}

}

 

[Vlad]

Hello Sandi,

I just tried your code however everything worked fine on my end - you can find an example project attached.

All the best,
Vlad
the Telerik team

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[rwozniak]

I'm running into the same error w/ basic databinding against the following internal build:

Latest Version: 2009.1 526 (May 26, 2009)

XAML:

<

 

UserControl x:Class="GridViewTest.MainPage"

 

 

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

 

 

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

 

 

xmlns:telerikGridView="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.GridView"

 

 

Width="400" Height="300">

 

 

 

 

<Grid x:Name="LayoutRoot">

 

 

 

<telerikGridView:RadGridView x:Name="MessagesGrid" />

 

 

 

</Grid>

 

 

</

 

UserControl>

Code-Behind:

 

 

 

using

 

System.Collections.ObjectModel;

 

 

 

using

 

System.Windows;

 

 

 

namespace

 

GridViewTest

 

{

 

public partial class MainPage

 

 

 

 

{

 

public MainPage()

 

{

InitializeComponent();

Loaded += MessagesLoaded;

}

 

void MessagesLoaded(object sender, RoutedEventArgs e)

 

{

LoadMessages();

}

 

private void LoadMessages()

 

{

MessagesGrid.ItemsSource = GetMessages();

}

 

private static ObservableCollection<Message> GetMessages()

 

{

 

return new ObservableCollection<Message>

 

{

 

new Message {Body = "Check# 1", Subject = "Item 1", Time = "June, 1 13:45"},

 

 

new Message {Body = "Check# 2", Subject = "Item 2", Time = "June, 1 13:45"},

 

 

new Message {Body = "Check# 3", Subject = "Item 3", Time = "June, 1 13:45"}

 

};

}

}

 

public class Message

 

 

 

 

{

 

public string Subject { get; set; }

 

 

public string Time { get; set; }

 

 

public string Body { get; set; }

 

}

}

 

[rwozniak]

By the way, the error is related to databinding. If I comment out the following line I do not get the error (of course I also do not see the data in the grid).

MessagesGrid.ItemsSource = GetMessages();

[Hristo Deshev]

Hi rwozniak,

That seems odd. I am unable to reproduce the problem. I copied your code verbatim, and I used the latest (June 12) internal build.

I am attaching a sample project that works for me. Does it work on your end?

Sincerely yours,
Hristo Deshev
the Telerik team

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