我在C#中有一个表单,其中使用了ComboBox
。我该如何防止用户在ComboBox
中手动输入文本呢?
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A、B、C是唯一的选项。