How to Set listbox location in WPF

Question

i want to set listbox location. In Winform i did this by using this code listbox.Location but in WPF there is no listbox.Location property.

Edit 1:

 var rect = txtBox.GetRectFromCharacterIndex(txtBox.CaretIndex);

 var point = rect.BottomRight;

 lstBox1.Visibility = Visibility.Visible;

 //Want to achieved this
 //TextBox.Location = point;

I am creating something like Intellisense with listbox

Please add your code and instead of location, try using Margin property — Mayur Dhingra, Jan 30 '14 at 17:48
See my post below - Margin has four parts: Left, Top, Right, Bottom. You can feed to that. Left is like X, Top is like Y. — Eric Scherrer, Jan 30 '14 at 18:29

score 0 · Answer 1 · answered Jan 30 '14 at 17:49

0

You should probably read up on WPF layouts, however to you can use the ListBox.Margin to position the ListBox in a hardcoded location.

listbox.Margin = new Thickness( 25, 200, 0, 0 );

or in XAML

<ListBox Margin="25,200,0,0"/>

answered Jan 30 '14 at 17:49

deloreyk

1,248
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i want to set point values on y axis on listbox. In WinForm i did like this `listbox.Location = p` Where p is `p.Y += (int)rtbInput.Font.GetHeight()*2;` – Uzair Ali Jan 30 '14 at 18:03
1

WPF does not work in that way. It would prefer you to create a structured layout. When you create a layout like this, window resizing and other such features are handled pretty much for you.[Consider this simple tutorial](http://wpftutorial.net/LayoutProperties.html). – deloreyk Jan 30 '14 at 19:17

score 0 · Answer 2 · answered Jan 30 '14 at 17:53

A ListBox's location is determined relative to the control it is contained in. To set a location within it's parent control you can use the HorizontalAlignment, VerticalAlignment and Margin Properties.

Here is an example:

<Window x:Class="WpfApplication14.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="MainWindow" Height="350" Width="525">
    <Grid>
         <ListBox HorizontalAlignment="Left" Height="100" Margin="197,105,0,0" VerticalAlignment="Top" Width="100"/>
     </Grid>
</Window>

Note - all these properties are available programmatically as well.

Thanks,

Eric

I used This `var rect = txtBox.GetRectFromCharacterIndex(txtBox.CaretIndex); var point = rect.BottomRight; lstBox1.Margin = new Thickness(0, point.Y, 0, 0);` On textbox GotFocus Event but the problem is when textbox is focused listbox just docked to the main windows — Uzair Ali, Jan 30 '14 at 18:50

score 0 · Answer 3 · answered Jan 30 '14 at 18:35

It all depends on what the parent panel is to determine how to set the position of your listbox. You'll need to read more about Layouts in WPF. Let's look at 2 panels to get you started, Grid and Canvas.

<Grid>
  <ListBox x:Name="lb" HorizontalAlignment="Left" VerticalAlignment="Top"/>
</Grid>

lb.Margin = new Thickness(10,10,0,0);

The example above sets the ListBox lb in the Grid at position (10,10).

<Canvas>
  <ListBox x:Name="lb"/>
</Canvas>

Canvas.SetTop(lb, 10);
Canvas.SetLeft(lb, 10);

The example above does the same for lb in a Canvas.

As you can see, it depends on what type of panel that you put your listbox into to be able to set the position correctly.

How to Set listbox location in WPF

3 Answers3