How to make textbox readonly property false in code behind?

问题

I have one TextBox. I want to make textbox readonly property true or false during an event.

I set the TextBox readonly property as true by the following code:

   txtNoOff.Attributes.Add("readonly", "readonly");

But how to make textbox readonly property false? I have tried like below:

   txtNoOff.Attributes.Add("readonly", "false");

But it does not work. How to achieve this? I need all ur suggestions please.

回答1:

Just remove the readonly attribute: txtNoOff.Attributes.Remove("readonly");

回答2:

please try

txtNoOff.ReadOnly = false

回答3:

Try

txtNoOff.Attributes.Remove("readonly");

回答4:

Try

textBoxName.ReadOnly=true

or False

来源：https://stackoverflow.com/questions/7937915/how-to-make-textbox-readonly-property-false-in-code-behind