Pass Values between Forms in C# 2005

[=?Utf-8?B?Umljaw==?=]

I have seen examples of passing data from FormB to FormA (Parent To Child)
but I need an example of passind data from FormA to FormB. My main form is
FormA; I will enter some data in textboxes and click a button to bring up
FormB which needs to display values entered in FormA.

Thanks in advance.

[Duggi]

On Jun 20, 7:28 pm, Rick <R...@discussio ns.microsoft.co mwrote:

I have seen examples of passing data from FormB to FormA (Parent To Child)
but I need an example of passind data from FormA to FormB. My main form is
FormA; I will enter some data in textboxes and click a button to bring up
FormB which needs to display values entered in FormA.

Thanks in advance.

Do you want to pass data from Parent to Child... right???

-Cnu..

[cfps.Christian]

<Form A>
FormB b = new FormB(this.Text Box1.Text, this.TextBox2.T ext,
this.ComboBox1. SelectedIndex);
b.ShowDialog();
</FormA>

<FormB>
private string _LastName;
private string _FirstName;
private int _PersonTypeID;
public FormB(string LastName, string FirstName, int PersonTypeID) :
this()
{
_LastName = LastName;
_FirstName = FirstName;
_PersonTypeID = PersonTypeID;
}

public Form_Load(objec t sender, EventArgs e)
{
this.txtLastNam e = _LastName;
this.txtFirstNa me = _FirstName;
this.cboPersonT ype.SelectedInd ex = PersonTypeID;
}
</FormB>

If you need to retrieve the values back out of FormB (you're changing
data) then you can add properties and pull them out in FormA via
properties. What I do in my code at home is every single form control
has a "Changed" event that gets fired and with this event the new
value is taken via a new EventArg. In my case I wanted to know if the
data had been changed and if so then I wanted to update, but I didn't
want to update it no matter what.

[Duggi]

On Jun 20, 7:28 pm, Rick <R...@discussio ns.microsoft.co mwrote:

I have seen examples of passing data from FormB to FormA (Parent To Child)
but I need an example of passind data from FormA to FormB. My main form is
FormA; I will enter some data in textboxes and click a button to bring up
FormB which needs to display values entered in FormA.

Thanks in advance.

Try the following code
public partial class FormA : Form
{
public FormA()
{
InitializeCompo nent();
}

private void Form1_Load(obje ct sender, EventArgs e)
{

}

private void button1_Click(o bject sender, EventArgs e)
{
FormB formB = new FormB();

formB.data = this.textBox1.T ext.ToString();

formB.Show();

}
}
public partial class FormB : Form
{
public string data;

public FormB()
{
InitializeCompo nent();
}

private void FormB_Load(obje ct sender, EventArgs e)
{
MessageBox.Show (data);
}
}

[=?Utf-8?B?Umljaw==?=]

Yes

"Duggi" wrote:

On Jun 20, 7:28 pm, Rick <R...@discussio ns.microsoft.co mwrote:

I have seen examples of passing data from FormB to FormA (Parent To Child)
but I need an example of passind data from FormA to FormB. My main form is
FormA; I will enter some data in textboxes and click a button to bring up
FormB which needs to display values entered in FormA.

Thanks in advance.

Do you want to pass data from Parent to Child... right???

-Cnu..

[Duggi]

On Jun 20, 9:08 pm, Rick <R...@discussio ns.microsoft.co mwrote:

Yes

"Duggi" wrote:

On Jun 20, 7:28 pm, Rick <R...@discussio ns.microsoft.co mwrote:

I have seen examples of passing data from FormB to FormA (Parent To Child)
but I need an example of passind data from FormA to FormB. My main form is
FormA; I will enter some data in textboxes and click a button to bring up
FormB which needs to display values entered in FormA.

Thanks in advance.

Do you want to pass data from Parent to Child... right???

-Cnu..

Hope you got one example..

-Cnu

[Duggi]

On Jun 20, 9:08 pm, Rick <R...@discussio ns.microsoft.co mwrote:

Yes

"Duggi" wrote:

On Jun 20, 7:28 pm, Rick <R...@discussio ns.microsoft.co mwrote:

I have seen examples of passing data from FormB to FormA (Parent To Child)
but I need an example of passind data from FormA to FormB. My main form is
FormA; I will enter some data in textboxes and click a button to bring up
FormB which needs to display values entered in FormA.

Thanks in advance.

Do you want to pass data from Parent to Child... right???

-Cnu..

Hope you got one example..

-Cnu

[cfps.Christian]

On Jun 20, 11:09*am, Duggi <DuggiSrinivasa [e-mail] ote:

On Jun 20, 7:28 pm, Rick <R...@discussio ns.microsoft.co mwrote:

I have seen examples of passing data from FormB to FormA (Parent To Child)
but I need an example of passind data from FormA to FormB. *My main form is
FormA; I will enter some data in textboxes and click a button to bring up
FormB which needs to display values entered in FormA.

Thanks in advance.

Try the following code

public partial class FormA : Form
* * {
* * * * public FormA()
* * * * {
* * * * * * InitializeCompo nent();
* * * * }

* * * * private void Form1_Load(obje ct sender, EventArgs e)
* * * * {

* * * * }

* * * * private void button1_Click(o bject sender, EventArgs e)
* * * * {
* * * * * * FormB formB = new FormB();

* * * * * * formB.data = this.textBox1.T ext.ToString();

* * * * * * formB.Show();

* * * * }
* * }

public partial class FormB : Form
* * {
* * * * public string data;

* * * * public FormB()
* * * * {
* * * * * * InitializeCompo nent();
* * * * }

* * * * private void FormB_Load(obje ct sender, EventArgs e)
* * * * {
* * * * * * MessageBox.Show (data);
* * * * }
* * }

I'm not generally a fan of the public member variable to pass data.
I've worked on too many VB6 projects where that's about the only way
to pass variables and its hell to maintain.

[=?Utf-8?B?Umljaw==?=]

cfps.Christian,
I do not want to pass a series of strings like the example you provided:
FormB b = new FormB(this.Text Box1.Text, this.TextBox2.T ext,
this.ComboBox1. SelectedIndex)

I may have 50 or 100 fields on FormA and it amy not be the right approach.
Do you have an example of another way f doing it; the example Duggi has
provided would also work but it would require each field to be set to Public
and I would rather not do it.
"cfps.Christian " wrote:

On Jun 20, 11:09 am, Duggi <DuggiSrinivasa [e-mail] ote:

On Jun 20, 7:28 pm, Rick <R...@discussio ns.microsoft.co mwrote:

I have seen examples of passing data from FormB to FormA (Parent To Child)
but I need an example of passind data from FormA to FormB. My main form is
FormA; I will enter some data in textboxes and click a button to bring up
FormB which needs to display values entered in FormA.

Thanks in advance.

Try the following code

public partial class FormA : Form
{
public FormA()
{
InitializeCompo nent();
}

private void Form1_Load(obje ct sender, EventArgs e)
{

}

private void button1_Click(o bject sender, EventArgs e)
{
FormB formB = new FormB();

formB.data = this.textBox1.T ext.ToString();

formB.Show();

}
}

public partial class FormB : Form
{
public string data;

public FormB()
{
InitializeCompo nent();
}

private void FormB_Load(obje ct sender, EventArgs e)
{
MessageBox.Show (data);
}
}

I'm not generally a fan of the public member variable to pass data.
I've worked on too many VB6 projects where that's about the only way
to pass variables and its hell to maintain.

[Stephany Young]

The critical issues are where your data is coming from in FormA and what you
are doing with it in FormB.

Until you determine that you cannot come up with a 'transfer' strategy.
"Rick" <Ri**@discussio ns.microsoft.co mwrote in message
news:E1******** *************** ***********@mic rosoft.com...

cfps.Christian,
I do not want to pass a series of strings like the example you provided:
FormB b = new FormB(this.Text Box1.Text, this.TextBox2.T ext,
this.ComboBox1. SelectedIndex)

I may have 50 or 100 fields on FormA and it amy not be the right approach.
Do you have an example of another way f doing it; the example Duggi has
provided would also work but it would require each field to be set to
Public
and I would rather not do it.
"cfps.Christian " wrote:

>On Jun 20, 11:09 am, Duggi <DuggiSrinivasa [e-mail] ote:

On Jun 20, 7:28 pm, Rick <R...@discussio ns.microsoft.co mwrote:

I have seen examples of passing data from FormB to FormA (Parent To
Child)
but I need an example of passind data from FormA to FormB. My main
form is
FormA; I will enter some data in textboxes and click a button to
bring up
FormB which needs to display values entered in FormA.

Thanks in advance.

Try the following code

public partial class FormA : Form
{
public FormA()
{
InitializeCompo nent();
}

private void Form1_Load(obje ct sender, EventArgs e)
{

}

private void button1_Click(o bject sender, EventArgs e)
{
FormB formB = new FormB();

formB.data = this.textBox1.T ext.ToString();

formB.Show();

}
}

public partial class FormB : Form
{
public string data;

public FormB()
{
InitializeCompo nent();
}

private void FormB_Load(obje ct sender, EventArgs e)
{
MessageBox.Show (data);
}
}

I'm not generally a fan of the public member variable to pass data.
I've worked on too many VB6 projects where that's about the only way
to pass variables and its hell to maintain.