我的项目有两个WPF表单:Form1和Form2。在Form1中我有1个按钮来调用Form2,textBox1,textBox2,textBox3,textBox4,Form2只有一个textBox和一个Save按钮。所以当我点击按钮时,它会显示Form2。在textBox中,我创建了一个模板文本,如:
"blablabla %txt1% blablabla %txt2% blabla %txt3% blabla"
我单击“保存”按钮以保存它。返回Form1时,textBox4将显示模板文本中的内容,其中%txt1%,%txt2%,%txt3%将更改取决于textBox1,textBox2,textBox3。我打算使用MultiBinding将textBox1,2,3中的内容绑定到textBox4中,就像这样:
<TextBox Name="textBox4">
<TextBox.Text>
<MultiBinding StringFormat = "blablabla {0} blablabla {1} blabla {2} blabla"
<Binding ElementName = "textBox1" Path="Text"/>
<Binding ElementName = "textBox2" Path="Text"/>
<Binding ElementName = "textBox3" Path="Text"/>
</MultiBinding>
</TextBox.Text>
</TextBox>
我的问题:如何获得
"blablabla {0} blablabla {1} blabla {2} blabla"
从Form2中的textBox并将其放到StringFormat?
答案 0 :(得分:0)
这是完整的代码如何从表单2获取值并使用转换器以表单1显示结果
并从文本框中获取值
//打开表单2并从文本框中获取值
private void button1_Click(object sender, RoutedEventArgs e)
{
var form2 = new Form2 {Owner = this};
form2.ShowDialog();
if(form2.DialogResult==true)
{
this.formatTemplate.Text = form2.DataContext as string;
}
}
以表格2设置关闭按钮并发送文本框值以形成1
private void btnClose_Click(object sender, RoutedEventArgs e)
{
this.DataContext = textBox1.Text;
this.DialogResult = true;
}
在表格1的XAML中
<Window.Resources>
<local:Converter x:Key="converter" />
</Window.Resources>
<Grid x:Name="LayoutRoot">
<StackPanel>
<TextBox Text="one" x:Name="textBox1" />
<TextBox Text="two" x:Name="textBox2" />
<TextBox Text="three" x:Name="textBox3" />
<TextBox Text="" x:Name="formatTemplate" Visibility="Collapsed" />
<TextBox x:Name="textBox4" >
<MultiBinding Converter="{StaticResource converter}">
<Binding ElementName = "textBox1" Path="Text"/>
<Binding ElementName = "textBox2" Path="Text"/>
<Binding ElementName = "textBox3" Path="Text"/>
<Binding ElementName="formatTemplate" Path="Text" />
</MultiBinding>
</TextBox>
<Button Content="Button" Height="25" Name="button1" Width="155" Click="button1_Click" />
</StackPanel>
</Grid>
和转换器代码:
public class Converter : IMultiValueConverter
{
public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
{
var formatsource = values[3] as string; // text value in textboxt formatTemplate
var re = new Regex(@"%[A-Za-z0-9]+%"); //match any text surrounded by % sign
var count = 0;
foreach (var m in re.Matches(formatsource))
{
formatsource= re.Replace(formatsource, values[count++] as string, 1); // replace one match at the time
}
return formatsource;
}
public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
{
throw new NotImplementedException();
}
}