Passing an enum value as command parameter from XAML

195
votes

I want to pass an enum value as command parameter in WPF, using something like this:

<Button 
    x:Name="uxSearchButton" 
    Command="{Binding Path=SearchMembersCommand}" 
    CommandParameter="SearchPageType.First"
    Content="Search">
</Button>

SearchPageType is an enum and this is to know from which button search command is invoked.

Is this possible in WPF, or how can you pass an enum value as command parameter?

4
.netwpfsilverlightxamlcommand

4 Answers

304
votes

Try this

<Button CommandParameter="{x:Static local:SearchPageType.First}" .../>

local - is your namespace reference in the XAML

178
votes

Also remember that if your enum is inside another class you need to use the + operator.

<Button CommandParameter="{x:Static local:MyOuterType+SearchPageType.First}".../>
50
votes

You can use property element syntax instead of attribute syntax for this:

<Button x:Name="uxSearchButton"
        Command="{Binding Path=SearchMembersCommand}"
        Content="Search">
    <Button.CommandParameter>
        <SearchPageType>First</SearchPageType>
    </Button.CommandParameter>
</Button>
33
votes

Also if you want to provide a [Flags] enum you can use the property element syntax: 

<Button>
  <Button.CommandParameter>
    <SearchPageType>First,Second</SearchPageType>
  <Button.CommandParameter>
</Button>