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Finding UserControl in Window  WPF

Posted on 2014-01-10
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Last Modified: 2014-01-10
I have a window that has a wrap panel.  In that wrap panel I have placed some viewboxes.  In each of the viewboxes I have placed a simple usercontrol.  How do I assign properties to my usercontrols?  I just can't figure out how to drill down and get to my usercontrol properties.  Sorry I have no code to give as a starting point as I am clueless.  Here is my xaml for the page, if that helps:

<Window
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:WPF_Custom_Control="clr-namespace:WPF_Custom_Control;assembly=WPF_Custom_Control" x:Class="Window1"
    Title="Window1" Height="1080" Width="1920">
    <Grid>
        <WrapPanel HorizontalAlignment="Left" Height="934" Margin="10,10,0,0" VerticalAlignment="Top" Width="1892">
            <Viewbox Height="100" Width="100" Stretch="Uniform" StretchDirection="Both" Name="vb1">
                <WPF_Custom_Control:UserControl1/>
            </Viewbox>
            <Viewbox Height="100" Width="100" Stretch="Uniform" StretchDirection="Both" Name="vb2">
                <WPF_Custom_Control:UserControl1/>
            </Viewbox>
            <Viewbox Height="100" Width="100" Stretch="Uniform" StretchDirection="Both" Name="vb3">
                <WPF_Custom_Control:UserControl1/>
            </Viewbox>
            <Viewbox Height="100" Width="100" Stretch="Uniform" StretchDirection="Both" Name="vb4">
                <WPF_Custom_Control:UserControl1/>
            </Viewbox>
            <Viewbox Height="100" Width="100" Stretch="Uniform" StretchDirection="Both" Name="vb5">
                <WPF_Custom_Control:UserControl1/>
            </Viewbox>
            <Viewbox Height="100" Width="100" Stretch="Uniform" StretchDirection="Both" Name="vb6">
                <WPF_Custom_Control:UserControl1/>
            </Viewbox>
            <Viewbox Height="100" Width="100" Stretch="Uniform" StretchDirection="Both" Name="vb7">
                <WPF_Custom_Control:UserControl1/>
            </Viewbox>
            <Viewbox Height="100" Width="100" Stretch="Uniform" StretchDirection="Both" Name="vb8">
                <WPF_Custom_Control:UserControl1/>
            </Viewbox>
            <Viewbox Height="100" Width="100" Stretch="Uniform" StretchDirection="Both" Name="vb9">
                <WPF_Custom_Control:UserControl1/>
            </Viewbox>
            <Viewbox Height="100" Width="100" Stretch="Uniform" StretchDirection="Both" Name="vb10">
                <WPF_Custom_Control:UserControl1/>
            </Viewbox>
        </WrapPanel>
        <Button Content="Button" HorizontalAlignment="Left" Margin="116,1003,0,0" VerticalAlignment="Top" Width="75" Click="Button_Click"/>

    </Grid>
</Window>

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Thank you for any help on this.
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Question by:G Scott
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Fernando Soto earned 500 total points
ID: 39771280
First thing you need to do is give the x.Name property of the controls you need to use to find them your user control, the WrapPanel and the UserControl. So your WrapPannel should be something like this, do the same to all the user controls :
<WrapPanel x:Name="MyWrapPanel" HorizontalAlignment="Left" Height="934" Margin="10,10,0,0" VerticalAlignment="Top" Width="1892">

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then when you wish to find one of your user control to change ones of its property do the following
 
Dim b As WPF_Custom_Control:UserControl1 = CType(MyWrapPanel.FindName("uc9"), WPF_Custom_Control:UserControl1)
b.ThePropertyToChange = "Value to set it to"

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Author Closing Comment

by:G Scott
ID: 39771485
I was thinking this was way more complex.  Thank you so much.
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LVL 62

Expert Comment

by:Fernando Soto
ID: 39771489
Not a problem, glad to help.
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