WPF control positioning problem - wpf

Question

i am learning WPF here is my XAML.
<Window x:Class="WpfApplication1.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="Window1"
Height="300"
Width="634">
<StackPanel>
<Button Height="35"
Width="89"
Name="p1">Hello</Button>
<Border CornerRadius="5"
BorderThickness="1"
BorderBrush="Black"
Height="35"
Width="254"
Margin="91,192,150,79">
<TextBox HorizontalAlignment="Left"
VerticalAlignment="Center"
Background="Transparent"
BorderThickness="0"
Height="35"
Width="250"
Name="txtContents" />
</Border>
<Button Height="23"
Name="button1"
Width="75">Button</Button>
</StackPanel>
button textbox is showing but the problem is I am not being able to drag the control to another location. how to fix it. please help. thanks

Answer 1

If you mean you can't drag the Button controls to different locations, it's because they're contained within a StackPanel - stacking them one on top of each other.
If you change that StackPanel to be a Grid, you'd have the ability to drag it around in a canvas-like manner.
<Window x:Class="WpfApplication1.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="Window1"
Height="300"
Width="634">
<Grid>
<Button Height="35"
Width="89"
Name="p1">Hello</Button>
<Border CornerRadius="5"
BorderThickness="1"
BorderBrush="Black"
Height="35"
Width="254"
Margin="91,192,150,79">
<TextBox HorizontalAlignment="Left"
VerticalAlignment="Center"
Background="Transparent"
BorderThickness="0"
Height="35"
Width="250"
Name="txtContents" />
</Border>
<Button Height="23"
Name="button1"
Width="75">Button</Button>
</Grid>
This question may shed some light on where to use Grids and StackPanels.

Answer 2

If by "able to drag the control to another location" you are talking about repositioning the control using Expression Blend or the Visual Studio Designer you need to change the StackPanel to a Grid
So it would become-
<Window x:Class="WpfApplication1.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="Window1"
Height="300"
Width="634">
<Grid>
<Button Height="35"
Width="89"
Name="p1">Hello</Button>
<Border CornerRadius="5"
BorderThickness="1"
BorderBrush="Black"
Height="35"
Width="254"
Margin="91,192,150,79">
<TextBox HorizontalAlignment="Left"
VerticalAlignment="Center"
Background="Transparent"
BorderThickness="0"
Height="35"
Width="250"
Name="txtContents" />
</Border>
<Button Height="23"
Name="button1"
Width="75">Button</Button>
</Grid>