如何用控件编程创建一个xaml面板 [英] How to programatically create a xaml panel with controls

问题描述

是否可以在包含重复元素的当前文档中以编程方式创建新面板？
例如，当窗口加载我有一个网格（一行）与三个文本字段，Fname01，Lname01和DOB01，我想有一个按钮，当点击将附加一个新行到网格与三新字段（Fname02，Lname02和DOB02）。每次点击按钮（addrow），将创建一个新行。我也有兴趣了解如何在xaml中识别这些字段，这将允许我databind或编程引用创建的字段插入值到数据库等。

提前谢谢，

解决方案

是的。要创建新行，请调用Grid.RowDefinitions.Add：

  myGrid.RowDefinitions.Add（new RowDefinition {Height = new GridLength （1，GridUnitType.Auto）}）; 
  

然后创建要在网格中移动的元素，将它们新建，属性，并将它们添加到Grid.Children集合中：

  int rowIndex = myGrid.Rows.Count  -  1; //或任何
 TextBox fname = new TextBox（）; 
 Grid.SetRow（fname，rowIndex）; 
 Grid.SetColumn（fname，0）; 
 myGrid.Children.Add（fname）; 
  

现在，您可以通过变量以编程方式引用文本框：

  fname.Text =我是文本框; 
  

或设置绑定：

  fname.SetBinding（TextProperty，new Binding {Source = mySource，Path = new PropertyPath（FirstName）}）; 
  
 
 
 
 
 
 
  EDIT： Benny在他的回答中说，如果你想要显示一个数据集合，那么一个ItemsControl绝对是一个更好的方式，而不是通过编程添加到布局网格。我会留下答案，因为它可能仍然与非项目列表的情况相关。
 
Is it possible to programatically create a new panel within a current document that contains duplicate elements?
For example when the window loads I have a grid (one row) with three text fields, Fname01, Lname01, and DOB01, I would like to have a button that when clicked would append a new row to the grid with three new fields (Fname02, Lname02, and DOB02). Each time the button is clicked (addrow) a new row would be created. I am also interested to learn how these fields are identified within the xaml that would allow me to databind or programatically reference the created fields for insertion of the values into a database etc.

Thank you in advance,
解决方案
Yes.  To create the new row, call Grid.RowDefinitions.Add:
myGrid.RowDefinitions.Add(new RowDefinition { Height = new GridLength(1, GridUnitType.Auto) });
Then to create the elements to go in the grid, new them up, set the row and column attached properties, and add them to the Grid.Children collection:
int rowIndex = myGrid.Rows.Count - 1;  // or whatever
TextBox fname = new TextBox();
Grid.SetRow(fname, rowIndex);
Grid.SetColumn(fname, 0);
myGrid.Children.Add(fname);
You can now programmatically refer to the text box through the variable:
fname.Text = "I'm a text box";
or set bindings on it:
fname.SetBinding(TextProperty, new Binding { Source = mySource, Path = new PropertyPath("FirstName") });




EDIT: As Benny says in his answer, if you are wanting to display a collection of data, then an ItemsControl is definitely a better way to go than programmatically adding to a layout Grid.  I'll leave the answer, though, as it may still be relevant to non-items-list scenarios.

                        
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