How to use if else construct

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hello, i want to use the if else construct on forms/buttons. here is the situation, on a form i have a textbox,save button and start button, the save button saves user input that has been provided through the textbox, now when the user clicks the start button,the button opens another form. i want the start button to make sure that the user has clicked the save button.
code samples would help....

thanks in advance

Posted 3-Sep-11 7:12am

morojele

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Abhinav S · Accepted Answer · 2011-09-03T07:21:00

Lets take two buttons cmdSave and cmdStart (for the Save and Start buttons).

I would have a class level boolean flag (lets call it flag).

On the cmdSave click method, I would set this flag to true.

C#

public void OncmdSaveClick(object sender, EventArgs e)
{
flag = true;
}

Whenever the cmdStart button is clicked I would check for this flag. Only if this flag is set (the Save button had been clicked earlier, I would run the form). If not, I would just step out of the method.

C#

public void OncmdStartClick(object sender, EventArgs e)
{
   //Call the new form if the flag is set
   if (flag)
    {
      CallNewForm(); //Calling the new form
    }
}

This way, you will be sure the Save button has been clicked at least once.

Wendelius · Accepted Answer · 2011-09-03T07:22:00

Solution 2

From what I gathered:
- in your form load, set a form level variable isSaved to false:

C#

private bool isSaved = false;

- in the save button click handler, change the state of the variable:

C#

isSaved = true;

- in the start button click handler, check that isSaved is true:

C#

if (!isSaved) [
   System.Windows.MessageBox.Show("Save first or something");
   return;
}
// do the actual start code...

Posted 3-Sep-11 7:22am

Wendelius

Comments

Abhinav S 3-Sep-11 13:25pm

My 5. Your answer is quite similar to mine.
You are a minute later however. :)

Wendelius 3-Sep-11 13:26pm

Yes, I noticed. Actually it was only 37 seconds late :)

Abhinav S 3-Sep-11 13:27pm

Ha ha. :)

Uday P.Singh 3-Sep-11 13:26pm

my 5!

Wendelius 3-Sep-11 13:28pm

Thanks :)