F6 Team

小弟最近在寫WinForm,遇到ComboBox下拉選單時

如果下拉選項文字太長會被切掉的問題..如下圖所示:

去找了一下解決方法...分享給大家呀...

c#(WinForm)

 

private void Form1_Load(object sender, EventArgs e) { comboBox1.Items.Add("微軟Tech．Ed 2008研討會"); comboBox1.Items.Add("MIX08 Taipei"); //ComboBox AutoSize int maxSize = 0; System.Drawing.Graphics g = CreateGraphics(); for (int i = 0; i < comboBox1.Items.Count; i++) { comboBox1.SelectedIndex = i; SizeF size = g.MeasureString(comboBox1.Text, comboBox1.Font); if (maxSize < (int)size.Width) { maxSize = (int)size.Width; } } comboBox1.DropDownWidth = comboBox1.Width; if (comboBox1.DropDownWidth < maxSize) { comboBox1.DropDownWidth = maxSize; } comboBox1.SelectedIndex = -1; }

執行結果:

 

參考網址:

http://paltman.com/2007/04/03/autosize-and-the-combobox/