WPF CommandParameter value from code behind

Question

How to bind a variable from code behind to CommandParameter?

Snippet from WPF tree view MyTreeView.xaml:

<TreeView.ContextMenu>
    <ContextMenu>
        <MenuItem Header="save items" Command="CommandInMvvmModel" CommandParameter="ParameterInCodeBehind"/>
    </ContextMenu>
</TreeView.ContextMenu>

ParameterInCodeBehind is a variable in MyTreeView.xaml.cs

In case it is a public property of the MyTreeView class: CommandParameter="{Binding ParameterInCodeBehind, RelativeSource={RelativeSource AncestorType=MyTreeView}}" — Clemens
– Clemens, Commented Sep 29, 2021 at 7:42

Anant Dabhi · Accepted Answer · 2021-09-29 07:25:53Z

2

You can Set CommandParameter from code behing via giving name of that MenuItem.

<TreeView.ContextMenu>
    <ContextMenu>
        <MenuItem x:Name="menu" Header="save items" Command="CommandInMvvmModel" CommandParameter="ParameterInCodeBehind"/>
    </ContextMenu>
</TreeView.ContextMenu>

Code behind :

menu.CommandParameter = "value"

answered Sep 29, 2021 at 7:25

Anant Dabhi

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