C# 在WPF中单击按钮时将数据从文本框添加到DataGridView

我的窗口有两个

文本框

，一个

按钮

和一个

数据网格视图

，当我单击该按钮时，

数据网格视图

需要显示

文本框

这就是我到目前为止所拥有的：

private void btn_Click(object sender, RoutedEventArgs e)
{

    DataTable dt = new DataTable();
    dt.Columns.Add("id");
    dt.Columns.Add("name");
    DataRow dr = null;

    if (dt.Rows.Count > 0)
    {    
         dr = dt.NewRow();
         dt.Rows.Add(txt1.Text, txt2.Text);
         grid1.ItemsSource = dt.DefaultView;
    }
}

在这种情况下，

DataGrid

的行会得到更新，但不会逐个添加值

---

有没有办法在WPF中实现这一点？

您必须将新项目（可以是匿名的）添加到

项目集合中

Eg

您必须将新项目（可以是匿名的）添加到
Items
集合中

Eg

定义datagrid列
并将数据绑定到相应的列上

<Grid>
    <TextBox x:Name="txt1" HorizontalAlignment="Left" Height="23" Margin="44,32,0,0" TextWrapping="Wrap" Text="TextBox" VerticalAlignment="Top" Width="120"/>
    <TextBox x:Name="txt2"  HorizontalAlignment="Left" Height="23" Margin="204,32,0,0" TextWrapping="Wrap" Text="TextBox" VerticalAlignment="Top" Width="120"/>
    <Button Content="Button" HorizontalAlignment="Left" VerticalAlignment="Top" Width="75" Margin="231,75,0,0" Click="Button_Click"/>
    <DataGrid x:Name="grid1" HorizontalAlignment="Left" Margin="44,138,0,0" VerticalAlignment="Top" Height="139" Width="280">
        <DataGrid.Columns>
            <DataGridTextColumn Header="ID" Binding="{Binding ID}"/>
            <DataGridTextColumn Header="NAME" Binding="{Binding NAME}"/>
        </DataGrid.Columns>
    </DataGrid>

</Grid>

定义datagrid列
并将数据绑定到相应的列上

<Grid>
    <TextBox x:Name="txt1" HorizontalAlignment="Left" Height="23" Margin="44,32,0,0" TextWrapping="Wrap" Text="TextBox" VerticalAlignment="Top" Width="120"/>
    <TextBox x:Name="txt2"  HorizontalAlignment="Left" Height="23" Margin="204,32,0,0" TextWrapping="Wrap" Text="TextBox" VerticalAlignment="Top" Width="120"/>
    <Button Content="Button" HorizontalAlignment="Left" VerticalAlignment="Top" Width="75" Margin="231,75,0,0" Click="Button_Click"/>
    <DataGrid x:Name="grid1" HorizontalAlignment="Left" Margin="44,138,0,0" VerticalAlignment="Top" Height="139" Width="280">
        <DataGrid.Columns>
            <DataGridTextColumn Header="ID" Binding="{Binding ID}"/>
            <DataGridTextColumn Header="NAME" Binding="{Binding NAME}"/>
        </DataGrid.Columns>
    </DataGrid>

</Grid>

<Grid>
    <TextBox x:Name="txt1" HorizontalAlignment="Left" Height="23" Margin="44,32,0,0" TextWrapping="Wrap" Text="TextBox" VerticalAlignment="Top" Width="120"/>
    <TextBox x:Name="txt2"  HorizontalAlignment="Left" Height="23" Margin="204,32,0,0" TextWrapping="Wrap" Text="TextBox" VerticalAlignment="Top" Width="120"/>
    <Button Content="Button" HorizontalAlignment="Left" VerticalAlignment="Top" Width="75" Margin="231,75,0,0" Click="Button_Click"/>
    <DataGrid x:Name="grid1" HorizontalAlignment="Left" Margin="44,138,0,0" VerticalAlignment="Top" Height="139" Width="280">
        <DataGrid.Columns>
            <DataGridTextColumn Header="ID" Binding="{Binding ID}"/>
            <DataGridTextColumn Header="NAME" Binding="{Binding NAME}"/>
        </DataGrid.Columns>
    </DataGrid>

</Grid>

  private void Button_Click(object sender, RoutedEventArgs e)
    {
         grid1.Items.Add(new { ID = txt1.Text, NAME = txt2.Text });
    }