C# passing values from one form to another

Question

Hi Evryone i was wondering if you can help me.

I have two forms in visual studio c# Form1 and Form2.

on each form i have a list box control.

Form1 has a button which when clicked i want to steal the values from the listbox on Form2 and populates the listbox on Form1.

Can anyone show me an easy way of doing this as i cant seem to get my head round it?

Hope this makes sense!

Thanks

Richard

Kirtan Patel · Answer

Ok fiend  then Write Code like Below Form1 Code -------------- private void ButtonGetFrom2ListBox_Click( object sender EventArgs e) { Form f2 = Application .OpenForms[ Form2 ]; listBox1.Items.Clear(); foreach ( string str in (( Form2 )f2).listBox1.Items) { //Add items in ListBox of Form 1 listBox1.Items.Add(str); } } private void Form1_Load( object sender EventArgs e) { Form2 f = new Form2 (); f.Show(); } Step 2 Make form2's ListBox's Modifier property to  Public  That Will Do what you want :)

theLizard · Answer

Another more efficient way to do this is to create a function in form 2 public ListBox lbItems(ListBox b) { b.Items.AddRange(lb.Items); return (b); } then in form 1 do this. private void button1_Click(object sender EventArgs e) { f2 f = new f2(); f.lbItems(Form1ListBox); } All done.

rich gollins · Answer

Thanks so much kirtan that got it to work great! Feedback left for you! :)

rich gollins · Answer

Thanks so much kirtan that got it to work great! Feedback left for you! :)

rich gollins · Answer

This is good but i need FORM1 to TAKE the values from the FORM2 listbox with a button on FORM1 the way you are showing is to PASS the values to the listbox using a button on the same form. Hope you understand me im new at this so i probably wasnt clear in my first post Thanks Richard

Mahesh Chand · Answer

Amit Please keep your signature and forum replies text siz es close to what w e have every where (size 2) and do not have colorful signatures. It makes forums look cluttered. Thanks Mahesh

rich gollins · Answer

It is not a web form it is a windows form but the above is useful to those needing to pass values from page to page in a web form as it has worked for me in the past. Thanks Anyway : )

Amit Choudhary · Answer

If you are working on Asp.net Web forms then simply save that value Either in session: for eg: Session[value]=DDLinfo.SelectedItem.Text; and retrieve it in the same manner.... info=Session[value].ToString(); or what ever was you type.... or you can also send the values using URL parameters.... like this: Response.Redirect(~/Admin/Product.aspx? id=+DDLinfo.SelectedItem.Text); and if you are using Windows Forms then simply store the value in Global variables...... ========================= Markk it as answer if it helps you... :)

Kirtan Patel · Answer

Friend  Here is How you can do this Step 1 Make Form1's ListBox 's Modifier Property to Public Step 2 In form2's Button Click Event Write code like Below private void buttonTransferToForm1_Click( object sender EventArgs e) { Form f = Application .OpenForms[ Form1 ]; (( Form1 )f).listBox1.Items.Clear(); foreach ( string str in listBox1.Items) { //Add items in ListBox of Form 1 (( Form1 )f).listBox1.Items.Add(str); } } Here Condition is Form1 Should be Open When you Press transfer Button :) if still not Understood I have Coded The Example for you just take a Look at here Download My Example for you :)