我如何在WPF中将新行添加到DataGrid中？

Question

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

    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

       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

Answer 1

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

Steps to do in WPF way:

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 .

---

Now, for your code there are couple of issues.

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 again with every button click.

---

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);
   }
}