以编程方式将标签添加到网格 [英] Programmatically add label to grid

问题描述

嘿，我正在尝试使用以下代码向我的网格添加标签:

Hey all i am trying to add a label to my grid using the following code:

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs) Handles Button1.Click
  Dim dynamicLabel As New Label()
  Dim g As New Grid

  dynamicLabel.Name = "NewLabel"
  dynamicLabel.Content = "TEST"
  dynamicLabel.Width = 240
  dynamicLabel.Height = 30
  dynamicLabel.Margin = New Thickness(0, 21, 0, 0)
  dynamicLabel.Foreground = New SolidColorBrush(Colors.White)
  dynamicLabel.Background = New SolidColorBrush(Colors.Black)

  Grid.SetRow(dynamicLabel, 0)
  Grid.SetColumn(dynamicLabel, 6)
  g.Children.Add(dynamicLabel)
End Sub

但是，按下按钮后，我再也看不到网格上的任何东西......我错过了什么?

However, i never see anything on the grid after i push the button... what am i missing?

推荐答案

我通过命名另一个网格更正了这个问题.我从来没有给网格命名，因此这就是 .Children.Add 永远不会添加到网格的原因.我尝试了 ma​​inGrid.Children.Add(mainGrid 是我父网格的名称)它总是会抛出一个错误，因为它需要的是 inside 的网格部分.

I corrected this by naming the other grid. I never had the grid named and therefore thats why the .Children.Add never would add to the grid. I tried mainGrid.Children.Add (mainGrid is the name of my parent grid) and it would always throw an error because it was the grid inside that it was needing for this part.

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs) //Handles Button1.Click
  Dim dynamicLabel As new Label();

  dynamicLabel.Name = "NewLabel";
  dynamicLabel.Content = "TEST";
  dynamicLabel.Width = 240;
  dynamicLabel.Height = 30;
  dynamicLabel.Margin = new Thickness(0, 21, 0, 0);
  dynamicLabel.Foreground = new SolidColorBrush(Colors.White);
  dynamicLabel.Background = new SolidColorBrush(Colors.Black);

  Grid.SetRow(dynamicLabel, 0);
  Grid.SetColumn(dynamicLabel, 0);
  childGrid.Children.Add(dynamicLabel); //'<-changed to grid name in XAML properties
End Sub

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