如何建立在c＃code一个DataTemplate？ [英] How do I build a DataTemplate in c# code?

问题描述

我试图建立一个winform互操作一个下拉列表，我创造了code中的下拉列表。不过，我已经得到的数据的问题，结合基础上的DataTemplate我指定。

我是什么失踪？

  drpCreditCardNumberWpf =新的ComboBox（）;
DataTemplate中cardLayout =新的DataTemplate {数据类型= ty​​peof运算（类：CreditCardPayment）};
StackPanel的SP =新的StackPanel
{
    方向= System.Windows.Controls.Orientation.Vertical
};TextBlock的持卡人=新的TextBlock {工具提示=持卡人姓名};
cardHolder.SetBinding（TextBlock.TextPropertyBillToName）;
sp.Children.Add（持卡人）;TextBlock的cardNumber =新的TextBlock {工具提示=信用卡号码};
cardNumber.SetBinding（TextBlock.TextPropertySafeNumber）;
sp.Children.Add（cardNumber）;TextBlock的笔记=新的TextBlock {=工具提示注意事项};
notes.SetBinding（TextBlock.TextProperty，注意事项）;
sp.Children.Add（注）;cardLayout.Resources.Add（SP，NULL）;drpCreditCardNumberWpf.ItemTemplate = cardLayout;
 

解决方案

假设你已经设置了的ItemsSource 等为 drpCreditCardNumberWpf ...

  //创建数据模板
DataTemplate中cardLayout =新的DataTemplate（）;
cardLayout.DataType = typeof运算（类：CreditCardPayment）;//设置堆栈面板
FrameworkElementFactory spFactory =新FrameworkElementFactory（typeof运算（StackPanel中））;
spFactory.Name =myComboFactory;
spFactory.SetValue（StackPanel.OrientationProperty，Orientation.Horizo​​ntal）;//设卡持有人文本块
FrameworkElementFactory持卡人=新FrameworkElementFactory（typeof运算（TextBlock中））;
cardHolder.SetBinding（TextBlock.TextProperty，新的绑定（BillToName））;
cardHolder.SetValue（TextBlock.ToolTipProperty，持卡人姓名）;
spFactory.AppendChild（持卡人）;//设置卡号文本块
FrameworkElementFactory cardNumber =新FrameworkElementFactory（typeof运算（TextBlock中））;
cardNumber.SetBinding（TextBlock.TextProperty，新的绑定（SafeNumber））;
cardNumber.SetValue（TextBlock.ToolTipProperty，信用卡号）;
spFactory.AppendChild（cardNumber）;//设置注释文本块
FrameworkElementFactory笔记=新FrameworkElementFactory（typeof运算（TextBlock中））;
notes.SetBinding（TextBlock.TextProperty，新的绑定（说明））;
notes.SetValue（TextBlock.ToolTipProperty，注意事项）;
spFactory.AppendChild（注）;//设置数据模板的可视化树
cardLayout.VisualTree = spFactory;//设置的项目模板是我们闪亮的新数据模板
drpCreditCardNumberWpf.ItemTemplate = cardLayout;
 

您可以使用，我设置了同样的方式工具提示在的TextBlock s到设置其他属性，如利润率。

I am trying to build a dropdown list for a winform interop, and I am creating the dropdown in code. However, I have a problem getting the data to bind based on the DataTemplate I specify.

What am I missing?

drpCreditCardNumberWpf = new ComboBox();  
DataTemplate cardLayout = new DataTemplate {DataType = typeof (CreditCardPayment)};   
StackPanel sp = new StackPanel
{
    Orientation = System.Windows.Controls.Orientation.Vertical
};   

TextBlock cardHolder = new TextBlock {ToolTip = "Card Holder Name"};
cardHolder.SetBinding(TextBlock.TextProperty, "BillToName");
sp.Children.Add(cardHolder);

TextBlock cardNumber = new TextBlock {ToolTip = "Credit Card Number"};
cardNumber.SetBinding(TextBlock.TextProperty, "SafeNumber");
sp.Children.Add(cardNumber);

TextBlock notes = new TextBlock {ToolTip = "Notes"};
notes.SetBinding(TextBlock.TextProperty, "Notes");
sp.Children.Add(notes);

cardLayout.Resources.Add(sp, null);

drpCreditCardNumberWpf.ItemTemplate = cardLayout;

解决方案

Assuming that you've already set up the ItemsSource etc for drpCreditCardNumberWpf...

//create the data template
DataTemplate cardLayout = new DataTemplate();
cardLayout.DataType = typeof(CreditCardPayment);

//set up the stack panel
FrameworkElementFactory spFactory = new FrameworkElementFactory(typeof(StackPanel));
spFactory.Name = "myComboFactory";
spFactory.SetValue(StackPanel.OrientationProperty, Orientation.Horizontal);

//set up the card holder textblock
FrameworkElementFactory cardHolder = new FrameworkElementFactory(typeof(TextBlock));
cardHolder.SetBinding(TextBlock.TextProperty, new Binding("BillToName"));
cardHolder.SetValue(TextBlock.ToolTipProperty, "Card Holder Name");
spFactory.AppendChild(cardHolder);

//set up the card number textblock
FrameworkElementFactory cardNumber = new FrameworkElementFactory(typeof(TextBlock));
cardNumber.SetBinding(TextBlock.TextProperty, new Binding("SafeNumber"));
cardNumber.SetValue(TextBlock.ToolTipProperty, "Credit Card Number");
spFactory.AppendChild(cardNumber);

//set up the notes textblock
FrameworkElementFactory notes = new FrameworkElementFactory(typeof(TextBlock));
notes.SetBinding(TextBlock.TextProperty, new Binding("Notes"));
notes.SetValue(TextBlock.ToolTipProperty, "Notes");
spFactory.AppendChild(notes);

//set the visual tree of the data template
cardLayout.VisualTree = spFactory;

//set the item template to be our shiny new data template
drpCreditCardNumberWpf.ItemTemplate = cardLayout;

You can use the same way I have set the ToolTip on the TextBlocks to set other properties such as margins.

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