XamlReader生成DataTemplate的问题 [英] Problems with XamlReader generating DataTemplate

问题描述

我正在尝试在WPF项目中实现以下代码，以便为具有动态列的DataGrid动态生成DataTemplates。我在此处

I'm trying to implement the code below in my WPF project in order to generate DataTemplates on the fly for a DataGrid with dynamic columns. I found the code on StackOverflow here

public DataTemplate Create(Type type)
{
  return (DataTemplate)XamlReader.Load(
          @"<DataTemplate
            xmlns=""http://schemas.microsoft.com/client/2007"">
            <" + type.Name + @" Text=""{Binding " + ShowColumn + @"}""/>
            </DataTemplate>"
   );
}

但是，在XamlReader.Load代码上，出现错误无法转换从字符串到 System.Xaml.XamlReader。

However, on the XamlReader.Load code, I get the error "cannot convert from 'string' to 'System.Xaml.XamlReader'.

我试图通过将代码更改为以下方式来解决此问题：

I tried to get around this by changing the code to:

return (DataTemplate)XamlReader.Load(XmlReader.Create(

但是在传递无效字符时出现错误。

but I get errors about passing invalid characters in the string.

此外，我不确定如何将TextBlock传递给此代码。只需创建一个TextBlock并将其作为Type参数传递，但出现错误无法从'System.Windows.Controls.TextBlock'转换为'System.Type'

Also, I am unsure how to pass a TextBlock to this code. I imagined I would just create a TextBlock and pass it as the Type argument, but I get the error "cannot convert from 'System.Windows.Controls.TextBlock' to 'System.Type'

感谢任何帮助。

推荐答案

public DataTemplate Create(Type type)
{
    StringReader stringReader = new StringReader(
    @"<DataTemplate 
        xmlns=""http://schemas.microsoft.com/winfx/2006/xaml/presentation""> 
            <" + type.Name + @" Text=""{Binding " + ShowColumn + @"}""/> 
        </DataTemplate>");
    XmlReader xmlReader = XmlReader.Create(stringReader);
    return XamlReader.Load(xmlReader) as DataTemplate;
}

像这样

TextBlock textBlock = new TextBlock();
Create(textBlock.GetType());

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