WPF Databound Listbox
I have a listbox bound to a list of开发者_开发知识库 objects for a data entry screen. The item template includes textblocks, a checkbox and comboboxes.
When the listbox is populated I would like to change the foreground color of the textblocks to red if object.value1 = true and object.value2 = 0.
Any ideas?
the following code works:
XAML
<ListBox Name="ListBox1">
<ListBox.ItemTemplate>
<DataTemplate>
<DataTemplate.Triggers>
<MultiDataTrigger>
<MultiDataTrigger.Conditions>
<Condition Binding="{Binding Value1}"
Value="1" />
<Condition Binding="{Binding Value2}"
Value="0" />
</MultiDataTrigger.Conditions>
<MultiDataTrigger.Setters>
<Setter TargetName="RootBorder"
Property="Border.Background"
Value="#EEE" />
</MultiDataTrigger.Setters>
</MultiDataTrigger>
</DataTemplate.Triggers>
<Border Name="RootBorder">
<TextBlock Text="{Binding Text}" />
</Border>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
Class
public class Model
{
public Int32 Value1 { get; set; }
public Int32 Value2 { get; set; }
public String Text { get; set; }
}
Code
models.Add(new Model() { Value1 = 0, Value2 = 0, Text = "Item #1" });
models.Add(new Model() { Value1 = 1, Value2 = 0, Text = "Item #2" });
models.Add(new Model() { Value1 = 0, Value2 = 1, Text = "Item #3" });
models.Add(new Model() { Value1 = 0, Value2 = 0, Text = "Item #4" });
models.Add(new Model() { Value1 = 1, Value2 = 0, Text = "Item #5" });
models.Add(new Model() { Value1 = 0, Value2 = 1, Text = "Item #6" });
models.Add(new Model() { Value1 = 0, Value2 = 0, Text = "Item #7" });
models.Add(new Model() { Value1 = 1, Value2 = 0, Text = "Item #8" });
models.Add(new Model() { Value1 = 1, Value2 = 1, Text = "Item #9" });
ListBox1.ItemsSource = models;
Use MVVM, and have your view model expose a property which checks the condition, and returns the color. Then bind the foreground color to that property :-)
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