How to send text of any Checkbox is checked in form2 to checkedListBox in form1

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I just know set checkListBox modifier = internal.
and

C#

Form1 fm1 = new Form1();
fm1.checkListBox1.Text = this.checkBox1.Text

it 's does't work.
Can anyone suggest me an idea about that.
See the following image.
http://terzasek.zhotspot.com/image/10152389_778170718888436_3719562139504542058_n.jpg[^]

Posted 25-Oct-14 5:17am

terzasek

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[no name] 25-Oct-14 11:24am

Did you go read the documentation for the CheckedListBox to find out how to use it first?

terzasek 27-Oct-14 22:01pm

Sorry. I just want to use.
I did read before.

BillWoodruff 25-Oct-14 16:02pm

Is Form1 the main form, and does it create the instance of Form2 ? What do the buttons on the two Forms do ? Do you want to update the CheckedListBox on Form1 every time a CheckBox on Form2 is checked, or unchecked, or update when the button on Form2 is clicked.

Remember we can't read your mind.

terzasek 27-Oct-14 22:10pm

Is Form1 the main form, When checked any checkBox in Form2 and click Transfer button the data will transfer to Form1.

2 solutions

Solution 2

The easiest way I can think of is the following:

Call Form2 as a dialog(with ShowDialog())and make a public variable in your Form2 which will hold the data you want to transfer between forms(which in your case is a bool[]) then use that variable back in Form1 however you want.

Posted 25-Oct-14 12:35pm

mostwanted4

Updated 25-Oct-14 12:36pm

v2

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OriginalGriff · Accepted Answer · 2014-10-25T05:43:00

No, it won't.
That's partly because when you do this:

C#

Form1 fm1 = new Form1();

It creates a new instance of teh form, not accesses the instance that is displaying.
It's a bit like cars: if you put your mobile phone in the glove box of your car, then buy a new one - would you expect to find your mobile in the new car glove box?

You need to access the existing instance of Form1, not create a new one.
But...the better way is to get the existing instance to do it for you...

Depending on the relationship between the forms, have a look at these:
Transferring information between two forms, Part 1: Parent to Child[^]
Transferring information between two forms, Part 2: Child to Parent[^]
Transferring information between two forms, Part 3: Child to Child[^]

Judging from the names, you probably want part 2.