c# - TableLayoutPanel 高度属性不起作用

Question

        TableLayoutPanel t = new TableLayoutPanel();  
        t.RowStyles.Add(new RowStyle(SizeType.AutoSize));
        t.ColumnStyles.Add(new ColumnStyle(SizeType.Percent, 100));
        t.CellBorderStyle = TableLayoutPanelCellBorderStyle.Single;
        Label lbl = new Label();
        lbl.Margin = new System.Windows.Forms.Padding(20, 150, 20, 20);
        lbl.Text = "Hello";
        t.Controls.Add(lbl, 0, 0);
        this.Text = t.Size.Height.ToString();
        this.Controls.Add(t);

为什么 t.Size.Height 属性总是给我 100 ？

Answer 1

这总是返回 100 的原因是您需要：

• AutoSize = true
• AutoSizeMode =AutoSizeMode.GrowAndShrink
• t.RowCount >= 1

• t.ColumnCount >= 1

      TableLayoutPanel t = new TableLayoutPanel();
      t.AutoSize = true;    //added
      t.AutoSizeMode =AutoSizeMode.GrowAndShrink;    //added
      t.RowCount = 1;  //added
      t.ColumnCount = 1;   //added
      t.RowStyles.Add(new RowStyle(SizeType.AutoSize));
      t.ColumnStyles.Add(new ColumnStyle(SizeType.Percent, 100));
      t.CellBorderStyle = TableLayoutPanelCellBorderStyle.Single;
      Label lbl = new Label();
      lbl.Margin = new System.Windows.Forms.Padding(20, 150, 20, 20);
      lbl.Text = "Hello";
      t.Controls.Add(lbl, 0, 0);
      this.Controls.Add(t);
      this.Text = t.Size.Height.ToString();  //moved
  

在将表格添加到表单后，您还需要将高度检查移动到，否则不会发生任何布局操作。