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WPF--动态添加控件、访问控件

發布時間:2024/1/17 asp.net 25 豆豆
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//WPF窗口采用默認的Grid布局控件,其“Name”值為“grid1”,在“grid1”中添加三個Button按鈕。動態添加控件并訪問這些控件的代碼如下:

private
void button1_Click_1(object sender, RoutedEventArgs e){//添加第一個文本框TextBox tb1 = new TextBox();tb1.Name = "myTextBox1";tb1.Text = "第一個文本框";tb1.Width = 100;tb1.Height = 50;tb1.HorizontalAlignment = HorizontalAlignment.Left;tb1.VerticalAlignment = VerticalAlignment.Top;tb1.Margin = new Thickness(100, 100, 0, 0);grid1.Children.Add(tb1);//添加第二個文本框TextBox tb2 = new TextBox();tb2.Name = "myTextBox2";tb2.Text = "第二個文本框";tb2.Width = 100;tb2.Height = 50;tb2.HorizontalAlignment = HorizontalAlignment.Left;tb2.VerticalAlignment = VerticalAlignment.Top;tb2.Margin = new Thickness(100, 150, 0, 0);grid1.Children.Add(tb2);}private void button2_Click(object sender, RoutedEventArgs e){//訪問添加的全部文本框foreach (var c in grid1.Children){if (c is TextBox){TextBox tb = (TextBox)c;MessageBox.Show(tb.Text);}}}private void button3_Click(object sender, RoutedEventArgs e){//訪問添加的某個文本框foreach (var c in grid1.Children){if (c is TextBox){TextBox tb = (TextBox)c;if (tb.Name == "myTextBox2"){MessageBox.Show(tb.Text);}}}}

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轉載于:https://www.cnblogs.com/DreamRecorder/p/9453138.html

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