如何在 wpf 中将新行添加到数据网格中？

How i can add new row into datagrid in wpf?

提问by Mahmoud Samy

I'm trying to Insert all Rows values of DataGrid for Once every Click of a button , so if user inserted three times display on datagrid three rows,I have a class there is code

我正在尝试为每次单击按钮一次插入 DataGrid 的所有行值，因此如果用户插入三次显示在数据网格三行上，我有一个类有代码

    public string Name { get; set; }
    public string Job { get; set; }
    public string Phone { get; set; }

    public MyGrid(string Vendors,string Jobs,string Tel)
    {
        Name = Vendors;
        Job = Jobs;
        Phone = Tel;
    }

and i called into button click event here

我在这里调用了按钮单击事件

       static List<MyGrid> gride;
        gride = new List<MyGrid>();
        for (int i = 0; i < 3; i++)
        {
            var myg1 = new MyGrid(textBox10.Text, textBox11.Text, textBox12.Text);
            gride.Add(myg1);

        }

        dataGridView1.ItemsSource = gride; 

this code it's working but there is the one problem,When add data is supposed to appear in a one row, but appears within 3 rows in the one click , I want to show one row in per click with different data . How i can add new row per click on the button in wpf

这段代码正在运行，但有一个问题，当添加数据应该出现在一行中，但在一次单击中出现在 3 行内时，我想在每次单击中显示一行，其中包含不同的数据。我如何每次点击 wpf 中的按钮添加新行

采纳答案by Rohit Vats

First of all this is not a way to do WPF way. Use proper bindings to achieve you want.

首先，这不是 WPF 的一种方式。使用适当的绑定来实现你想要的。

Steps to do in WPF way:

以 WPF 方式执行的步骤：

1. Create ObservableCollection<MyGrid>and bind ItemsSource with that collection.
2. Instead of setting ItemsSource again simply add object in that collection. DataGrid will be refreshed automatically since ObservableCollection implement INotifyCollectionChanged.

1. ObservableCollection<MyGrid>使用该集合创建和绑定 ItemsSource。
2. 无需再次设置 ItemsSource，只需在该集合中添加对象即可。自 ObservableCollection 实施后，DataGrid 将自动刷新INotifyCollectionChanged。

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Now, for your code there are couple of issues.

现在，对于您的代码，存在几个问题。

1. If you want item to be added once, why to run for loop and add object thrice. Remove the for loop.
2. With every button click, you are re-initializing the list. Instead keep the list as instance field and initialize list only once from class constructor.
3. No need to set ItemsSource againwith every button click.

1. 如果您希望项目添加一次，为什么要运行 for 循环并添加对象三次。Remove the for loop.
2. 每次单击按钮时，您都在重新初始化列表。而是将列表保留为实例字段和initialize list only once from class constructor。
3. No need to set ItemsSource again每次点击按钮。

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public class CodeBehindClass
{
   private ObservableCollection<MyGrid> gride;
   public CodeBehindClass()
   {
      gride = new ObservableCollection<MyGrid>();
      dataGridView1.ItemsSource = gride;
   }

   private void ButtonHandler(object sender, RoutedEventArgs e)
   {
      var myg1 = new MyGrid(textBox10.Text, textBox11.Text, textBox12.Text);
      gride.Add(myg1);
   }
}