I am developing a windows app in c#. I have used three decimal variables: counter, narrow, and broad which store different values based on some calculations.
On clicking a button, a message box is displayed showing these three decimal values and then the application exits..
Now I want to add another form having three labels in which these variable values needs to be shown. Please explain, how can I pass those variables in the next form to display in individual labels?
One method is to create a new constructor in the 2nd form. THen you can use those values from the 2nd form.
public Form2(decimal x, decimal y, decimal z):this()
{
this.TextBox1.Text = Convert.ToString(x);
this.Label1.Text = Convert.ToString(y);
etc...
};
From main form
Form2 frm2 = new Form2(x,y,z);
frm2.Show();
Create a new Form...
public class CalculationResultForm : Form
{
public CalculationResultForm(){}
public decimal Counter
{
set { labelCounter.Text = value.ToString(); }
}
public decimal Broad
{
set { labelBroad.Text = value.ToString(); }
}
public decimal Narrow
{
set { labelNarrow.Text = value.ToString(); }
}
private void OkButton_Click(object sender, EventArgs e)
{
// This will close the form (same as clicking ok on the message box)
DialogResult = DialogResult.OK;
}
}
Then within your existing form button click handler...
private void MyButton_Click(object sender, EventArgs e)
{
CalculationResultForm resultForm = new CalculationResultForm();
resultForm.Counter = _counter;
resultForm.Narrow = _narrow;
resultForm.Broad = _broad;
resultForm .ShowDialog();
Application.Exit();
}
Application.Exit call? Otherwise I like the answer, since it would also allow for the form to be displayed non-modally, enabling it to remain visible and continuously getting updated with new values through the properties.
The easiest way is to probably add a new method, lets call it ShowWithDetails:
public void ShowWithDetails(double Counter, double Narrow, double Broad)
{
CounterLabel.Text = Counter.ToString();
NarrowLabel.Text = Narrow.ToString();
BroadLabel.Text = Broad.ToString();
ShowDialog();
}
An easy way is to use properties. The form you want to pass the values to is just another class.
add something like this to the second form:
public int counter {get; set;}
then from the first form you'd do something along the lines of
Form2 form2 = new Form2();
form2.counter = 1;
form2.ShowDialog();
or something along those lines.
There is a blog post describing how to do this without using ShowDialog().
