Parameter Passing on Form Load C#

Ziycon

I know very well how to pass parameters but for the life of me i can't figure out how to pass a value from FORM A to FORM B when FORM B loads after a button is pressed on FORM A??

All help appreciated.

EDIT: Got it working, using a static class.

IsaBrown

Create a second constructor for FormB that accepts the paramaters.

public FormB()
{
InitializeComponent();
}


public FormB(object o) : this()
{
paramFromFormA = o
}



private void btnOpenFormB_Click(object sender, EventArgs e)
{
FromB frmB = new frmB(paramFromFormA);
frmB.Show();

}

Cantab.

I tend to make just one Form and use lots of UserControls stemming from this one Form

I then use lots of delegate and event functionality to bounce paramaters around the place.

Anyone have any comments on this? Is there a cleaner/more efficient way of handling forms where the layout of the visual components needs to change quite a lot?

stevenmu

Unless I'm misunderstanding, you shouldn't need to pass parameters at all. In general if you need to same information available to multiple event handlers/functions you can just put it in class-level variables accessible by anything in the form.

When you talk about changing the visual components a lot, is the problem that you are removing these from the form but need to keep the values? In that case you should leave them on the form but hide them (you can put the controls in batches onto panel controls to make managing this much easier.)