wpf c#代码隐藏中的数据模板
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时间：2020-09-13 05:30:48 来源:igfitidea点击:
Datatemplate in c# code-behind
提问by user1565467
I search an option to build a datatemplate in c# code. I had used :
我在 c# 代码中搜索了一个选项来构建数据模板。我用过：
DataTemplate dt = new DataTemplate(typeof(TextBox));
Binding bind = new Binding();
bind.Path = new PropertyPath("Text");
bind.Mode = BindingMode.TwoWay;
FrameworkElementFactory txtElement = new FrameworkElementFactory(typeof(TextBox));
txtElement.SetBinding(TextBox.TextProperty, bind);
txtElement.SetValue(TextBox.TextProperty, "test");
dt.VisualTree = txtElement;
textBox1.Resources.Add(dt, null);
But it doesn't work (it is placed at the Loaded-Method of the window - so my textbox should show the word "test" at window start). Any idea?
但它不起作用（它被放置在窗口的加载方法中 - 所以我的文本框应该在窗口开始时显示“测试”这个词）。任何的想法？
回答by akton
Each element needs to be added to the current visual tree. For example:
每个元素都需要添加到当前的可视化树中。例如：
ListView parentElement; // For example a ListView
// First: create and add the data template to the parent control
DataTemplate dt = new DataTemplate(typeof(TextBox));
parentElement.ItemTemplate = dt;
// Second: create and add the text box to the data template
FrameworkElementFactory txtElement =
new FrameworkElementFactory(typeof(TextBox));
dt.VisualTree = txtElement;
// Create binding
Binding bind = new Binding();
bind.Path = new PropertyPath("Text");
bind.Mode = BindingMode.TwoWay;
// Third: set the binding in the text box
txtElement.SetBinding(TextBox.TextProperty, bind);
txtElement.SetValue(TextBox.TextProperty, "test");
