How can I list colors in WPF with XAML?

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How can I get list of all colors I can pick in Visual Studio Designer (which is System.Windows.Media.Colors, but that isn't a collection) and put them into my own ComboBox using WPF and XAML markup?

原文链接：http://stackoverflow.com/questions/562682/how-can-i-list-colors-in-wpf-with-xaml

Here is the pure XAML solution.

In your resources section, you would use this:

<!-- Make sure this namespace is declared so that it's in scope below -->
.. xmlns:sys="clr-namespace:System;assembly=mscorlib" ..<ObjectDataProvider MethodName="GetType"
ObjectType="{x:Type sys:Type}" x:Key="colorsTypeOdp">
<ObjectDataProvider.MethodParameters>
<sys:String>System.Windows.Media.Colors, PresentationCore,
Version=3.0.0.0, Culture=neutral,
PublicKeyToken=31bf3856ad364e35</sys:String>
</ObjectDataProvider.MethodParameters>
</ObjectDataProvider>
<ObjectDataProvider ObjectInstance="{StaticResource colorsTypeOdp}"
MethodName="GetProperties" x:Key="colorPropertiesOdp">
</ObjectDataProvider>


Or, as CodeNaked points out, it can be reduced to one tag:

<ObjectDataProvider
ObjectInstance="{x:Type Colors}"
MethodName="GetProperties"
x:Key="colorPropertiesOdp" />


And then the combobox would look like this:

<ComboBox Name="comboBox1"
ItemsSource="{Binding Source={StaticResource colorPropertiesOdp}}"
DisplayMemberPath="Name"
SelectedValuePath="Name" />

Here is a great ItemTemplate to use for a combobox using casperOne's code:

<ComboBox Name="cboColors"
ItemsSource="{Binding Source={StaticResource colorPropertiesOdp}}"
SelectedValuePath="Name">
<ComboBox.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal" Height="18" Margin="0,0,0,2">
<Border BorderThickness="1" CornerRadius="2"
BorderBrush="Black" Width="50" VerticalAlignment="Stretch"
Background="{Binding Name}"/>
<TextBlock Text="{Binding Name}" Margin="8,0,0,0"/>
</StackPanel>
</DataTemplate>
</ComboBox.ItemTemplate>
</ComboBox>

Here is what I have done in a past ASP.net app:

// populate colors drop down (will work with other kinds of list controls)
Type colors = typeof(System.Drawing.Color);
PropertyInfo[] colorInfo = colors.GetProperties(BindingFlags.Public |
BindingFlags.Static);
foreach ( PropertyInfo info in colorInfo)
{
ddlColor.Items.Add(info.Name);
}// Get the selected color
System.Drawing.Color selectedColor =
System.Drawing.Color.FromName(ddlColor.SelectedValue);

Here's how to do it in code using reflection. The following will dump all predefined WPF color names to Output:

using System.Reflection;void ListAllColors()
{
Type colorsType = typeof(System.Windows.Media.Colors);
PropertyInfo[] colorsTypePropertyInfos = colorsType.GetProperties(BindingFlags.Public | BindingFlags.Static); foreach (PropertyInfo colorsTypePropertyInfo in colorsTypePropertyInfos)
Debug.WriteLine(colorsTypePropertyInfo.Name);
}

And to put them in a combobox, you could simply change the last line to:

_comboBox.Items.Add(colorsTypePropertyInfo.Name);