C# WinForms 中的只读组合框
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Readonly ComboBox in WinForms
提问by Brock Greman
I'm writing a GUI in C#, Visual Studio 2008, using the Designer and WinForms. I've got a ComboBox control, and I'd like it to only allow to select from the provided options and not to accept a user-entered string. It doesn't appear to have a ReadOnly property, and disabling it hinders the readability of the control (as well as disallowing user-selection).
我正在使用设计器和 WinForms 在 C#、Visual Studio 2008 中编写 GUI。我有一个 ComboBox 控件，我希望它只允许从提供的选项中进行选择，而不接受用户输入的字符串。它似乎没有 ReadOnly 属性，禁用它会妨碍控件的可读性（以及禁止用户选择）。
采纳答案by Phillip Wells
Set DropDownStyle to "DropDownList"
将 DropDownStyle 设置为“DropDownList”
回答by Mauro
Try using a DropDownListbox
尝试使用 DropDownListbox
回答by OregonGhost
Set the ComboBox.DropDownStyle property to ComboBoxStyle.DropDownList.
将 ComboBox.DropDownStyle 属性设置为 ComboBoxStyle.DropDownList。
回答by David Max
Use code similar to the following to set the allowed options and only those options.
使用类似于以下的代码来设置允许的选项，并且仅设置那些选项。
comboBox1.DropDownStyle = ComboBoxStyle.DropDownList;
comboBox1.Items.AddRange(new object[] {
"One",
"Two",
"Three",
"Four"});
回答by Isuru
Another simple way to go about it.
另一种简单的方法来解决它。
private void combobox1_KeyPress(object sender, KeyPressEventArgs e)
{
e.Handled = true;
}
