我有一个用户控件,里面有一个文本框和一个按钮。
我想使用触发器禁用文本框(我知道如何通过代码实现)。
XAML如下:
<UserControl x:Class="MyProject.UserControl1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:l="clr-namespace:MyProject"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="300">
<UserControl.Resources>
<Style TargetType="l:UserControl1" >
<Style.Triggers>
<Trigger Property="l:UserControl1.IsEditing" Value="True">
<Setter Property="IsEnabled" Value="False"></Setter>
</Trigger>
</Style.Triggers>
</Style>
</UserControl.Resources>
<Grid>
<Grid.RowDefinitions>
<RowDefinition />
<RowDefinition />
</Grid.RowDefinitions>
<Button Content="Button" HorizontalAlignment="Left" x:Name="button1" VerticalAlignment="Top" Width="75" Grid.Row="0" Click="button1_Click" />
<TextBox Height="23" HorizontalAlignment="Left" x:Name="textBox1" VerticalAlignment="Top" Width="120" Grid.Row="1"/>
</Grid>
</UserControl>
代码如下:
using System;
using System.Windows;
using System.Windows.Controls;
namespace MyProject
{
/// <summary>
/// Interaction logic for UserControl1.xaml
/// </summary>
public partial class UserControl1 : UserControl
{
public static readonly DependencyProperty IsEditingProperty = DependencyProperty.Register(
"IsEditing", typeof(Boolean), typeof(UserControl), new PropertyMetadata(false));
public Boolean IsEditing
{
get { return (Boolean)GetValue(IsEditingProperty); }
set { SetValue(IsEditingProperty, value); }
}
public UserControl1()
{
InitializeComponent();
}
private void button1_Click(object sender, RoutedEventArgs e)
{
IsEditing = !IsEditing;
}
}
}
但是这个设置会禁用文本框和按钮。我怎样才能只禁用按钮呢?如果我有几个文本框,我只想禁用其中的一些,最好的选择是什么?如果我有几个不同的UI元素(例如文本框、日历、数据网格等),我想使用一个触发器禁用它们所有,我应该怎么做?