如何从一种形式显示名称到另一种形式

Question

I dimmed a variable

Dim StudentName as String

When the user inputs their name in the TextBox I have:

txtName.Text = StudentName

This should save the data input by the user into StudentName .
On Form3 Load I have the StudentName data display on the Label as

lblnameout.Text = Form1.StudentName

But it always comes out blank. How do I make it so that the name shows?

Answer 1

This:

txtName.Text = StudentName

should be the other way around:

StudentName = txtName.Text

Otherwise, you'll be replacing what the user typed in with what is already in the variable, which would be Nothing .

Answer 2

I also agree with the module route, but you can declare it as a Public Shared string and then modify it as needed. Under Public Class Form1 place this line:

Public Shared StudentName As String

Now that you have a global variable, you just need to swap the values around like jmcilhinney suggested so the user data gets applied to the string.

StudentName = txtName.Text

Now you can go over to Form3 and set your label up to retrieve the value of that string with:

lblnameout.Text = Form1.StudentName