Basic XAML using Button Control..!!

creating a control in XAML is as easy as writing it's name, surrounded by angle brackets. For instance, a Button looks like this:

<Button>

XAML tags has to be ended, either by writing the end tag or by putting a forward slash at the end of the start tag:

<Button></Button>

Or

<Button />

A lot of controls allow you to put content between the start and end tags, which is then the content of the control. For instance, the Button control allows you to specify the text shown on it between the start and end tags:

<Button>A button</Button>

HTML is not case-sensitive, but XAML is, because the control name has to correspond to a type in the .NET framework. The same goes for attribute names, which corresponds to the properties of the control. Here's a button where we define a couple of properties by adding attributes to the tag:

<Button FontWeight="Bold" Content="A button" />

We set the FontWeight property, giving us bold text, and then we set the Content property, which is the same as writing the text between the start and end tag. However, all attributes of a control may also be defined like this, where they appear as child tags of the main control, using the Control-Dot-Property notation:

<Button>
    <Button.FontWeight>Bold</Button.FontWeight>
    <Button.Content>A button</Button.Content>
</Button>

The result is exactly the same as above, so in this case, it's all about syntax and nothing else. However, a lot of controls allow content other than text, for instance other controls. Here's an example where we have text in different colors on the same button by using several TextBlock controls inside of the Button:
Download sample

<Button>
    <Button.FontWeight>Bold</Button.FontWeight>
    <Button.Content>
        <WrapPanel>
            <TextBlock Foreground="Blue">Multi</TextBlock>
            <TextBlock Foreground="Red">Color</TextBlock>
            <TextBlock>Button</TextBlock>
        </WrapPanel>
    </Button.Content>
</Button>

The Content property only allows for a single child element, so we use a WrapPanel to contain the differently colored blocks of text. Panels, like the WrapPanel, plays an important role in WPF and we will discuss them in much more details later on - for now, just consider them as containers for other controls.