c# winforms - multipleForms task

Question

dsUni = new DataSet();
dsUni.ReadXml(pathDesc);
frm02.dgv02.DataSource = dsUni.Tables[0];
frm02.ShowDialog(); // this all works well

But - frm02.ClosingEvent:
dsUni.WriteXml(pathDesc);
error: The names dsUni and pathDesc does not exist in the current context

What should i write and WHERE - to access all the controls and all variables from frm01 to frm02 and ViceVersa?

Frogleg · Answer

You can't put public inside an event or method public partial class Form1 : Form { public static Form1 Fm1 = null; public var dsUni = new DataSet();// put it here public Form1() { InitializeComponent(); } Do some research on global variables

Frogleg · Answer

Magic word - public public var dsUni = new DataSet(); on Form2 use Form1.Fm1.dsUni(do whatever);

Frogleg · Answer

Here's one way

Memento · Answer

Thanks Frog it works now. Especially thanks for yourPatience.

Memento · Answer

I tried to put this magic words - public var dsUni = new DataSet(); - on many places: - In the buttonClick Event - which calls Form 2 - In the Form1_Load - In the Form2_Load - Inside public frm01() And allways - I got errors.

Memento · Answer

Something is clear but... Pleas give me a solution for this case: On the first form I have: var dsUni = new DataSet(); dsUni.ReadXml(pathDesc); frm02.dgv02.DataSource = dsUni.Tables[0]; frm02.ShowDialog(); On the second form I need the same DataSet(dsUni) to writeXml: dsUni.WriteXml(pathDesc); //dsUni and pathDesc are from the first form

Memento · Answer

ThankYou Frog I'll explore your sample And hope - FormToForm Story will bi finally clearToMe.