Accessing Textbox From A Class

Question

2.60/5 (2 votes)

See more:

So i have a Textbox1 on Form1 and i am wanting to pass it into a class to be processed and then spouted back out into the form. I know it will have to be in a get and set, but i get confused what needs to go in get and set and what bit stays in the Form1 and what goes in the class. Any suggestions

P.S i think the TextBox1 will have to go in the set but not sure. I have had a look round online for this but no one has came up with a decent method for this.

Posted 9-Dec-13 8:31am

Member 9665875

Add a Solution

Comments

BillWoodruff 9-Dec-13 14:48pm

You need to describe the relationship between the Form that hosts the TextBox and the Class: is the Class in a different Namespace, in another application, etc.

Is the Class static ? If not, what creates the instance of the Class you need to expose the TextBox on the Form to ?

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Ron Beyer · Accepted Answer · 2013-12-09T08:33:00

Solution 1

Why would you pass the textbox around, and not just the string that it contains? Let the UI do the work with the textbox, and let the classes take care of working directly with the data, not the UI.

Just pass the Textbox.Text to the class, not the entire textbox.

Posted 9-Dec-13 8:33am

Ron Beyer

Comments

BillWoodruff 9-Dec-13 15:43pm

imho it's clear in this case that there is a two way interaction, and the Text in the TextBox will be altered in whatever the Class is.

Sergey Alexandrovich Kryukov 9-Dec-13 16:09pm

Sure. This is sometimes really hard to answer to the question demonstrating so low level of understanding, so, my 5.
—SA

Adam Zgagacz · Accepted Answer · 2013-12-09T09:06:00

What you will be passing to the class is not textbox itself but only reference to it.

If you want to pass it as class property, you can define property as shown below. I named it MyTextBox:

C#

TextBox m_TextBox;  //Local reference to passed TextBox
public TextBox MyTextBox
{
   set 
{
    m_TextBox = value;
}

private get 
{
    return m_TexBox;
}


}

Your original TextBox stays wherever it was. You just passed reference to it. In you class you have acess to all members of the original TextBox instance by using MyTextBox property getter.