Silverlight binding image to an integer
I got this problem for a long time now. And still I don't know how to fix it... I'm trying to bind an image to a value in my datagrid.
The field is called Billable and it's 0 or 1. When I have the value 1 I want to show a greenCross. When the value is 0 I want to show a RedCross.
Here is the code
<telerik:RadGridView Grid.Column="1" Grid.Row="0" x:Name="RadGridView1"
ItemsSource="{Binding TypeRegs}"
IsReadOnly="True"
DataContext="{Binding Source={StaticResource TypeRegViewModel}}"
AutoGenerateC开发者_如何转开发olumns="False"
ScrollMode="Deferred"
GridLinesVisibility="Horizontal"
IsSynchronizedWithCurrentItem="True"
SelectedItem="{Binding Path=SelectedTypeReg, Mode=TwoWay}"
SelectionUnit="FullRow">
<telerik:RadGridView.Columns>
<telerik:GridViewDataColumn Header="Description" DataMemberBinding="{Binding Description}" />
<telerik:GridViewDataColumn Header="Billable" DataMemberBinding="{Binding Billable}" />
</telerik:RadGridView.Columns>
</telerik:RadGridView>
Does anybody have any idea how to fix it?
Please tell me in steps. I have tried many things... None of them work.
Thx
I just found the answer guys. I will share it ;)
First you need to create a coverter that looks like this.
public class CommentTypeIconConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
if (value != null)
{
int ct = int.Parse(value.ToString());
if (ct == 1)
{
StreamResourceInfo sr = Application.GetResourceStream(
new Uri("/COVR.TimeRegistration;component/Images/true.png", UriKind.Relative));
BitmapImage bmp = new BitmapImage();
bmp.SetSource(sr.Stream);
return bmp;
}
else
{
StreamResourceInfo sr = Application.GetResourceStream(
new Uri("/COVR.TimeRegistration;component/Images/false.png", UriKind.Relative));
BitmapImage bmp = new BitmapImage();
bmp.SetSource(sr.Stream);
return bmp;
}
}
else
{
return MessageBox.Show("Fout");
}
}
public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
throw new NotImplementedException();
}
}
This coverter will return the images
Your xaml will look like this
<telerik:RadGridView Grid.Column="1" Grid.Row="0" x:Name="RadGridView1"
ItemsSource="{Binding TypeRegs}"
IsReadOnly="True"
DataContext="{Binding Source={StaticResource TypeRegViewModel}}"
AutoGenerateColumns="False"
ScrollMode="Deferred"
GridLinesVisibility="Horizontal"
IsSynchronizedWithCurrentItem="True"
SelectedItem="{Binding Path=SelectedTypeReg, Mode=TwoWay}"
SelectionUnit="FullRow">
<telerik:RadGridView.Columns>
<telerik:GridViewDataColumn Header="Description" DataMemberBinding="{Binding Description}"/>
<telerik:GridViewDataColumn Header="Billable" Width="50">
<telerik:GridViewColumn.CellTemplate>
<DataTemplate>
<Image Width="16" Height="16" Source="{Binding Billable,Converter={StaticResource CommentTypeIconConverter}}">
</Image>
</DataTemplate>
</telerik:GridViewColumn.CellTemplate>
</telerik:GridViewDataColumn>
</telerik:RadGridView.Columns>
</telerik:RadGridView>
This works fine!!
If you need any help you can ask :)
First of all why do you want to bind it to gridView column instead of binding it directly to Billable
property. Also instead of binding you can use DataTriggers
. Here is the code I'm using for the same purpose on WPF, please check if it will help you with Silverlight:
<Image>
<Image.Style>
<Style TargetType="Image">
<Style.Triggers>
<DataTrigger Binding="{Binding Billable}" Value="0">
<Setter Property="Source" Value="RedCross.png" />
</DataTrigger>
<DataTrigger Binding="{Binding Billable}" Value="1">
<Setter Property="Source" Value="GreenCross.png" />
</DataTrigger>
</Style.Triggers>
</Style>
</Image.Style>
</Image>
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