vb.net VB 按下按钮后禁用文本框。

VB Disabling textboxes after button is pressed.

提问by R4g323

is there a way to disable a textbox in code only when an even is triggered? for example, a textbox wants user to enter an initial amount of money in a textbox. After the calculate button is clicked, make the textbox not editable. im a beginner and my textbook doesnt mention it.

有没有办法仅在触发偶数时禁用代码中的文本框？例如，文本框希望用户在文本框中输入初始金额。单击计算按钮后，使文本框不可编辑。我是初学者，我的教科书没有提到它。

回答by

• To disable textboxon button click

  Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
      TextBox1.Enabled = False
  End Sub
  

• To make it Read Only

  TextBox1.ReadOnly = True
  

  The difference between Enabledand ReadOnlyis :

• 要禁用textbox按钮单击

  Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
      TextBox1.Enabled = False
  End Sub
  

• 使其只读

  TextBox1.ReadOnly = True
  

  之间的区别Enabled和ReadOnly是：

Readonlyallows the user to set focus to and select and copy the text but not modify it. A disabledTextBox does not allow any interaction whatsoever.

Readonly允许用户设置焦点并选择和复制文本，但不能修改它。一个禁用的文本框不允许任何交互任何责任。

Use ReadOnlywhen you have data that you want the user to see and copy, but not modify. Use a disabled textbox, when the data you are displaying is not applicablein for the current state of a dialog or window.

当您希望用户查看和复制但不修改数据时，请使用ReadOnly。当您显示的数据不适用于对话框或窗口的当前状态时，请使用禁用的文本框。