C# - Simple Validation - DialogResult

I have the following code for a button click on a form:

        private 开发者_如何转开发void btnOK_Click(object sender, EventArgs e)
        {

        if (this.txtProjectName.Text == "")
        {
            MessageBox.Show("No project name entered", "No Project Name", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
            btnOK.DialogResult = DialogResult.None;
        }
        else
        {
            this.btnOK.DialogResult = DialogResult.OK;
            return;
        }
    }

If there is something in the text box, the form will only close on the second click. Is there a way to close the form instantly, and pass a DialogResult.OK to it's caller?

Thanks

---

Instead of setting the this.btnOK.DialogResult, use this:

this.DialogResult = DialogResult.OK;

This will set the DialogResult of the Form. The form will close, and DialogResult will have its correct value.