WPF x:static and brushes/colors

Posted on 2010-11-07
Last Modified: 2013-11-12
I'm working with a training course and it is throwing an error about not completing the exercises propertly.

In a nut shell, I need to define brushes using the x:Static syntax, and while what I wrote works, it is telling me that I'm using the wrong classes.

I built the XAML using this:
<Rectangle Grid.Row="1" Fill="{x:Static SystemColors.GrayTextBrush}"></Rectangle>

And the error is this:
"The Rectangle is not filled with a color from the Colors class."

I've got another one for a border that says:
"The Border element in the SampleWindow.xaml file does not specify a background color using any brush in the Brushes class."

What do I need to change here?
Question by:PixelMuse
  • 2
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LVL 27

Expert Comment

ID: 34083638
Does the course material insist on using the x:static syntax? I would code it as:
<Rectangle Grid.Row="1" Fill="Gray"></Rectangle>

Can you post the xaml for the border that's giving problems

Author Comment

ID: 34083653
Yes, it says to use the x:static syntax. Here is the whole little layout lesson, so you can see what it is asking for. The border code is there too.
<Window x:Class = "Task.SampleWindow"



		Title="SampleWindow" Height="302" Width="574">

	<Grid Name="windowGrid">


			<RowDefinition Height="*" />

			<RowDefinition Height="*" />


        <Border Background="{x:Static SystemColors.HighlightTextBrush }" Padding="5">



                    <ImageBrush ImageSource="logo.gif"/>





        <Rectangle Grid.Row="1" Fill="{x:Static SystemColors.GrayTextBrush}"></Rectangle>



			The SampleWindow.xaml XAML file declares a single Border element within the

			 <Grid> tags that uses markup extension syntax to specify a background color

			 using any brush in the Brushes class. The Border element has padding of 5 units

			 on each side.




			There are a variety of ways to set the Background property of a Border object, but 

			 you should look at the x:Static reference provided in the links section for an 

			 example of the syntax required.





			The Border element declared in the SampleWindow.xaml XAML file contains a Button

		 	 control as a child element. The Button control uses property element syntax to

		 	 set the background property to an ImageBrush Brush with an ImageSource property

		 	 of logo.gif.




			To create an ImageBrush brush with ImageSource property of logo.gif

			 you can use the following markup: <ImageBrush ImageSource="logo.gif" />




			The SampleWindow.xaml XAML file declares a Rectangle element within the <Grid>

			 tags, which is filled with any color defined on the Colors class using attribute





			The Rectangle declared in the SampleWindow.xaml XAML file is assigned to the

			 second row of the containing grid, using attached property syntax.





			The rows and columns of a Grid control are identified using a zero-based index. 

			 You should take this into account when assigning a control to a particular row 

			 or column.




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LVL 27

Accepted Solution

MikeToole earned 500 total points
ID: 34083812
It asks to select a member of the Brushes class, not SysttemColors, try this:
Fill="{x:Static Brushes.Gray}"

Author Closing Comment

ID: 34132129
I don't know why I didn't try that. I start typing "Brushes", but intellisense didn't pick it up so I decided not to continue.


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