[Solved] Data row display issue

[Jeremy]

I am currently referencing the new futures build that was released (RadControls for Silverlight 2008 3 1217 Futures). 

I have a UserControl that I specify a MinHeight for the UserControl (it doesn't seem to matter if the MinHeight is set in the xaml or at runtime).  This UserControl contains a RadGridView.  When I use this UserControl as the Content of a RadWindow the initial state of the grid shows a vertical scroll bar and only displays one data row.  Once I resize the window (make it larger even the slightest bit) the RadGridView displays the data rows correctly.  However there is a side effect of this issue as well.  If I scroll down a few records prior to the resize of the window the rows that I had scrolled by no longer show in the GridView (this issue also occurs if I do not specify a MinHeight on the UserControl).  It also seems as if the vertical scrollbars will never come back when resizing the window to smaller than the data.

I have provided a sample below of the issue I am having.
Is this a known issue?  If so is there currently a work around?
Thank you for your help.
- Jeremy

Page.xaml

<UserControl x:Class="WindowExample.Page"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:WindowExample="clr-namespace:WindowExample"
    >
    <Grid x:Name="LayoutRoot" >
        <Grid.RowDefinitions>
            <RowDefinition Height="50"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>
        <StackPanel Grid.Row="0">
            <Button x:Name="OpenMinHeightWindowButton" Content="Open Min Height Window" Width="150" Height="25" Click="OpenMinHeightWindowButton_Click"/>
            <Button x:Name="OpenNewWindowButton" Content="Open New Window" Width="150" Height="25" Click="OpenNewWindowButton_Click"/>
        </StackPanel>
        <WindowExample:ExampleGrid x:Name="ExampleGridView" Grid.Row="1"/>
    </Grid>
</UserControl>

Page.xaml.cs

using System.Windows;
using System.Windows.Controls;
using Telerik.Windows.Controls;

namespace WindowExample {
    public partial class Page : UserControl {
        public Page() {
            InitializeComponent();
        }

        private void OpenMinHeightWindowButton_Click(object sender, RoutedEventArgs e) {
            GetNewWindow(new ExampleGrid(){MinHeight = 400}).Show();
        }

        private void OpenNewWindowButton_Click(object sender, RoutedEventArgs e) {
            GetNewWindow(new ExampleGrid()).Show();
        }

        private RadWindow GetNewWindow(object WindowContent) {
            RadWindow NewWindow = new RadWindow();
            NewWindow.Content = WindowContent;
            NewWindow.WindowStartupLocation = WindowStartupLocation.CenterScreen;
            NewWindow.PreviewClosed += NewWindow_PreviewClosed;
            NewWindow.PreviewHidden += NewWindow_PreviewHidden;
            return NewWindow;
        }

        private void NewWindow_PreviewHidden(object sender, WindowPreviewHiddenEventArgs e) {
            this.Focus();
        }

        void NewWindow_PreviewClosed(object sender, WindowPreviewClosedEventArgs e) {
            this.Focus();
        }
    }
}

ExampleGrid.xaml

<UserControl x:Class="WindowExample.ExampleGrid"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:Controls="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" >
        <Controls:RadGridView Name="sampleRadGridView" ColumnsWidthMode="Fill" AutoGenerateColumns="False" ShowGroupPanel="False">
            <Controls:RadGridView.Columns>
                <GridView:GridViewDataColumn IsReadOnly="True" DataMemberBinding="{Binding ContactName}">
                    <GridView:GridViewDataColumn.CellStyle>
                        <Style TargetType="GridView:GridViewCell">
                            <Setter Property="Template">
                                <Setter.Value>
                                <ControlTemplate>
                                    <Button x:Name="ActionButton" Content="Some Action" Click="ActionButton_Click"> </Button>
                                </ControlTemplate>
                                </Setter.Value>
                                </Setter>
                        </Style>
                    </GridView:GridViewDataColumn.CellStyle>
                </GridView:GridViewDataColumn>
                <GridView:GridViewDataColumn HeaderText="CustomerID" IsReadOnly="True" UniqueName="CustomerID"    />
                <GridView:GridViewDataColumn HeaderText="CompanyName" IsReadOnly="True" UniqueName="CompanyName" />
                <GridView:GridViewDataColumn HeaderText="Country" UniqueName="Country" />
                <GridView:GridViewDataColumn HeaderText="City" UniqueName="City" />
                <GridView:GridViewDataColumn HeaderText="ContactName" UniqueName="ContactName" />
            </Controls:RadGridView.Columns>
        </Controls:RadGridView>
    </Grid>
</UserControl>

ExampleGrid.xaml.cs

using System.Collections.ObjectModel;

using System.Windows.Controls;

namespace WindowExample {

public partial class ExampleGrid : UserControl {

private ObservableCollection<Customer> dataSource = new ObservableCollection<Customer>();

public ExampleGrid() {

InitializeComponent();

SetCustomerDataSource();

this.sampleRadGridView.ItemsSource = this.dataSource;

}

private void SetCustomerDataSource() {

for (int i = 0; i < 10; i++) {

Customer aCustomer = new Customer();

aCustomer.CustomerID = i.ToString();

aCustomer.ContactName = "Customer " + i.ToString();

dataSource.Add(aCustomer);

}

}

private void ActionButton_Click(object sender, System.Windows.RoutedEventArgs e) {

//Perform some action

}

}

public class Customer {

public string CustomerID { get; set; }

public string CompanyName { get; set; }

public string Country { get; set; }

public string City { get; set; }

public string ContactName { get; set; }

public bool Bool { get; set; }

} }

[Pavel Pavlov]

Hi Jeremy,

Thank you for the feedback.

Actually, we have some issues with the vertical scrolling in the beta version of the control. The detailed description of the problem, including sample XAML and code you provided is a great help for our team.
I have updated your Telerik points.

I believe these issues will be fixed with our next release.

Once again, thank you for taking your time to help us make the RadGridView better !

Best wishes,
Pavel Pavlov
the Telerik team

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