问题
I am facing a problem in setting the combo property such that only user can select the values form given items, but I cannot write in the combo box.
How can I do so in C#?
回答1:
Just change the DropDownStyle to DropDownList. Or if you want it completely read only you can set Enabled = false, or if you don't like the look of that I sometimes have two controls, one readonly textbox and one combobox and then hide the combo and show the textbox if it should be completely readonly and vice versa.
回答2:
I think you want to change the setting called "DropDownStyle" to be "DropDownList".
回答3:
In the keypress event handler:
e.Handled = true;
回答4:
Make the DropDownStyle to DropDownList
stateComboBox.DropDownStyle = ComboBoxStyle.DropDownList;
回答5:
The solution is to change the DropDownStyle property to DropDownList. It will help.
回答6:
Try this:
private void comboBox1_KeyDown(object sender, KeyEventArgs e)
{
// comboBox1 is readonly
e.SuppressKeyPress = true;
}
来源：https://stackoverflow.com/questions/3061042/how-do-i-set-combobox-read-only-or-user-cannot-write-in-a-combo-box-only-can-sel