如何防止手动输入到C#中的ComboBox

Question

我在C#中有一个使用a的表单ComboBox.如何防止用户ComboBox在C#中手动输入文本？

this.comboBoxType.Font = new System.Drawing.Font("Arial", 15.75F);
this.comboBoxType.FormattingEnabled = true;
this.comboBoxType.Items.AddRange(new object[] {
            "a",
            "b",
            "c"});
this.comboBoxType.Location = new System.Drawing.Point(742, 364);
this.comboBoxType.Name = "comboBoxType";
this.comboBoxType.Size = new System.Drawing.Size(89, 32);
this.comboBoxType.TabIndex = 57;   

我希望ABC成为唯一的选择.

Answer 1

只需将您的组合设置为DropDownList:

this.comboBoxType.DropDownStyle = ComboBoxStyle.DropDownList;

Answer 2

我相信你想把DropDownStyle设置为DropDownList.

this.comboBoxType.DropDownStyle = 
    System.Windows.Forms.ComboBoxStyle.DropDownList;

Answer 3

您可以添加e.Handled = trueKeyPress事件:

private void Combo1_KeyPress(object sender, KeyPressEventArgs e)
{
    e.Handled = true;
}