one form contol used to another form using c# windows application

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one windows application using 2 forms like form1 and form2.

first form designed two textbox only. another one form designed one button.

now the second form how to access first form controls of textbox.

that is, button_click()

C#

{
string a=textbox1.text;
string b=textbox2.text;
console.writeline(a);
console.writeline(b);
}

Posted 12-Oct-11 3:08am

murugeshchinnu

Updated 12-Oct-11 3:23am

P.Salini

v3

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4 solutions

Solution 1

Simple answer: Don't.

When you do that, you tie the design of the two forms together. You cannot make a change to the way one form works, without considering the effects on the other. This is against the principles of OOP, and has a detrimental effect on reliability.

Instead, set up public properties and / or events to transfer the data instead. That way the internal working of the form do not get exposed to the outside world.

The best way to do it is to create an event in the appropriate form which indicates that new data is available, and subscribe to that event in the other form. That way, if the second form is interested in teh data, it can use it, or not handle the event if it is not going to use the data.

Posted 12-Oct-11 3:19am

OriginalGriff

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sravani.v · Accepted Answer · 2011-10-12T03:22:00

Solution 3

First u have to make or create a variable for the first form
ex:

form1 obj=new form1();

now

str=obj.textbox1.text;

like this we can use just try

Posted 12-Oct-11 3:22am

sravani.v

Updated 12-Oct-11 3:23am

v2

uspatel · Accepted Answer · 2011-10-12T03:19:00

Solution 2

Make control public.
and use in Form2.cs as

C#

Form1 f1=new Form1();
string s1=f1.TextBox1.Text;

or
use properties if you do'nt want to make control public.

Posted 12-Oct-11 3:19am

uspatel

Updated 12-Oct-11 18:44pm

v3

Comments

murugeshchinnu 12-Oct-11 9:38am

i am sorry, textbox1 not available here.

uspatel 13-Oct-11 0:46am

textbox1 should have public access specifier.check it.

murugeshchinnu 13-Oct-11 1:02am

thanks patel your answer useful for my developing application.
thank you so much.

koolprasad2003 · Accepted Answer · 2011-10-12T03:23:00

Solution 4

you can make control as PUBLIC to access it anywhere

or

otherForm.Controls["nameOfControl"]

Posted 12-Oct-11 3:23am

koolprasad2003

Updated 12-Oct-11 3:24am

v2