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Set the previous value of the UltraComboEditor after validation
posted

Hi everyone,

I have a UltraComboEditor which has a list of recipients. And when the form is loaded, for each Note (Form contains the Note Details), there will be a already a recipent loaded from the database. e.g. Amy is selected for loaded Note.

There will be a validation, if I select another recipient from the list, it will pop up a message saying "Do you wish to reforward this note to Andrew?", which "Andrew" is the newly selected recipient. If I say "Yes" , the combo value will be set to "Andrew", and save to database, or else it  should be set back to the previous value which is "Amy".

My problem is when i put the following coding in the ValueChanged event, the message will pop up twice, since i set the selectedIndex back to the original. And also this event fires at the form loading where I load up the combo with the recipient.

Loading Data

==========

private void frmNotes_Load(object sender, EventArgs e)

{

// I removed the events at the begining otherwise the message pops up when loading the Combo

uceMessageSentTo.ValueChanged -=new EventHandler(uceMessageSentTo_ValueChanged);

DisplayData();

_recipientIdex = uceMessageSentTo.SelectedIndex;

uceMessageSentTo.ValueChanged += new EventHandler(uceMessageSentTo_ValueChanged);

}

private void uceMessageSentTo_ValueChanged(object sender, EventArgs e)

{

DialogResult result = MessageBox.Show("Do you wish to send this note to " + uceMessageSentTo.Text + "?", "Change Recipient",

MessageBoxButtons.YesNo, MessageBoxIcon.Question);

if (result == DialogResult.Yes)

{

// Save to database

}

else

{

uceMessageSentTo.SelectedIndex = _recipientIdex;

}

}

Can someone please suggest a solution to resolve this probelm. Urgent Help needed !

Thanks in Advance,

NW

 

Parents
  • 37774
    posted

    Since you know all of the places that you're going to cause the ValueChanged to be fired again, you could just keep a flag to bail out of the ValueChanged event handler while you're setting the SelectedIndex so that you don't repeat the logic.

    -Matt

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