TableLayoutPanel高度屬性不工作

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); 

爲什麼t.Size.Height屬性總是讓我100？

Answer 1

這始終是返回100的原因是，你需要：

• 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 
  

您還需要在將表格添加到表單後移動高度檢查，否則不會發生布局操作。