Vista - Change ImageSource property of ImageBrush

Hi,
I use an ImageBrush object within a Rectangle defined as below,
<Rectangle ..........>
<ImageBrush x:Name="imgBrush" ImageSource="D:\Azul.jpg"/>
</Rectangle>

On the occurence of an event, I want to change the ImageSource of ImageBrush
to some other value, say, "D:\\Blue Hills.jpg".
How do I do this from code-behind in C# ?

I cannot seem to do this - imgBrush.ImageSource = "D:\\Blue Hills.jpg";
Throws an error - 'Cannot implicitly convert from string to
System.Windows.Media.ImageSource'.

Please help me.
I am new to both C# and .Net 3.0

Thanks,
Raghavendra

The type of ImageSource is "ImageSource", not string. When parsing the
XAML, we convert your strings to the actual types of the properties via
TypeConverters. From code, you'll want to create an instance of a type
which derives from ImageSource and assign this to the ImageBrush.ImageSource
property. To create a bitmap, you'll likely want to create a BitmapImage,
like so:

//Create source
BitmapImage bi = new BitmapImage();
//BitmapImage.UriSource must be in a BeginInit/EndInit block
bi.BeginInit();
bi.UriSource = new
Uri(@"pack://application:,,/sampleImages/cherries_larger.jpg");
bi.EndInit();

(
http://windowssdk.msdn.microsoft.com...tmapimage.aspx )

-Adam Smith [MS]

"Raghavendra" <Raghavendra@discussions.microsoft.com> wrote in message
news:ABBD47BA-52A1-4F51-B1F7-1B97A76952F1@microsoft.com...
> Hi,
> I use an ImageBrush object within a Rectangle defined as below,
> <Rectangle ..........>
> <ImageBrush x:Name="imgBrush" ImageSource="D:\Azul.jpg"/>
> </Rectangle>
>
> On the occurence of an event, I want to change the ImageSource of
> ImageBrush
> to some other value, say, "D:\\Blue Hills.jpg".
> How do I do this from code-behind in C# ?
>
> I cannot seem to do this - imgBrush.ImageSource = "D:\\Blue Hills.jpg";
> Throws an error - 'Cannot implicitly convert from string to
> System.Windows.Media.ImageSource'.
>
> Please help me.
> I am new to both C# and .Net 3.0
>
> Thanks,
> Raghavendra

Thanks a lot Adam. I am able to do that now.
Thanks.

"Adam Smith [MS]" wrote:

> The type of ImageSource is "ImageSource", not string. When parsing the
> XAML, we convert your strings to the actual types of the properties via
> TypeConverters. From code, you'll want to create an instance of a type
> which derives from ImageSource and assign this to the ImageBrush.ImageSource
> property. To create a bitmap, you'll likely want to create a BitmapImage,
> like so:
>
> //Create source
> BitmapImage bi = new BitmapImage();
> //BitmapImage.UriSource must be in a BeginInit/EndInit block
> bi.BeginInit();
> bi.UriSource = new
> Uri(@"pack://application:,,/sampleImages/cherries_larger.jpg");
> bi.EndInit();
>
> (
> http://windowssdk.msdn.microsoft.com...tmapimage.aspx )
>
> -Adam Smith [MS]
>
> "Raghavendra" <Raghavendra@discussions.microsoft.com> wrote in message
> news:ABBD47BA-52A1-4F51-B1F7-1B97A76952F1@microsoft.com...
> > Hi,
> > I use an ImageBrush object within a Rectangle defined as below,
> > <Rectangle ..........>
> > <ImageBrush x:Name="imgBrush" ImageSource="D:\Azul.jpg"/>
> > </Rectangle>
> >
> > On the occurence of an event, I want to change the ImageSource of
> > ImageBrush
> > to some other value, say, "D:\\Blue Hills.jpg".
> > How do I do this from code-behind in C# ?
> >
> > I cannot seem to do this - imgBrush.ImageSource = "D:\\Blue Hills.jpg";
> > Throws an error - 'Cannot implicitly convert from string to
> > System.Windows.Media.ImageSource'.
> >
> > Please help me.
> > I am new to both C# and .Net 3.0
> >
> > Thanks,
> > Raghavendra
>
>
>