how to access an object which made with a function in c#

Question

I'm making a c# windows app and trying to create objects in form (for example TextBox and Label) programmatically. And I can do this easily but I can't define them as public objects. I have a function called 'makeTextBox(...)' in a class called 'varstats' and this is the function:

public static void makeTextBox(Panel pnlMain, int offsetTop, int offsetRight, string strName = "")
    {
        TextBox txt = new TextBox();
        txt.Name = strName;
        txt.Parent = pnlMain;
        txt.AutoSize = true;
        txt.Width = (pnlMain.Width - 9 * defdis) / 3; //defdis is a public int and means default distance
        txt.Location = new Point(pnlMain.Width - txt.Width - defdis - offsetRight - 3, offsetTop + defdis);
    }

And this is my main form code in form load:

 varstats.makeTextBox(pnlMain, 0, 0, "txtCustName");

This function works very correctly (:D) and I can see the TextBox in my Panel, but how can I access the TextBox? for example in another form I need to read the text property of TextBox and save it to my database? how to do this?

Note that I can't define them in header of my class because I want to make too many objects using for or while and also I want to remove them and make some another objects in some cases.

krivtom · Accepted Answer · 2016-09-18 10:52:44Z

1

Simplest approach is to return textbox from your method and then use it:

// return is changed from void to TextBox:
public static TextBox makeTextBox(Panel pnlMain, int offsetTop, int offsetRight, string strName = "")
{
    TextBox txt = new TextBox();
    txt.Name = strName;
    txt.Parent = pnlMain;
    txt.AutoSize = true;
    txt.Width = (pnlMain.Width - 9 * defdis) / 3; //defdis is a public int and means default distance
    txt.Location = new Point(pnlMain.Width - txt.Width - defdis - offsetRight - 3, offsetTop + defdis);

    // return the textbox you created:
    return txt;
}

And now you can assign the return value of a method to a variable and use it any way you want:

TextBox myTextBox = varstats.makeTextBox(pnlMain, 0, 0, "txtCustName");

// for example, change the text:
myTextBox.Text = "Changed Text";

answered Sep 18, 2016 at 10:52

krivtom

25k10 gold badges53 silver badges54 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Kamyar Mirzavaziri Over a year ago

It's good idea but I have another function called preparePanel and this function make too many controls with different types (TextBox, Label, DataGridView, ...) and this function use the functions makeLabel and .... and I should return an array of different controls in my preparePanel function. is it possible to have such an array?

Kamyar Mirzavaziri Over a year ago

I found the answer (Here). Thank you for your answer. :)

Collectives™ on Stack Overflow

how to access an object which made with a function in c#

1 Answer 1

2 Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related