/// <summary>
/// Called when a control is being validated. Set e.Cancel to true to cause the validation to fail.
/// </summary>
/// <param name="sender">The control being validated.</param>
/// <param name="e">Parameters for the event.</param>
private void HandleControlValidating(object sender, System.ComponentModel.CancelEventArgs e)
{
Control control = (Control)sender;
string propertyName = (string)control.Tag;
string value = control.Text;
TextBox textBox = control as TextBox;
if (textBox != null)
{
if (!textBox.Modified)
{
return;
}
value = this.ParentPropertyPage.Normalize(propertyName, value);
}
else
{
FoldersSelector foldesSelector = control as FoldersSelector;
if (foldesSelector != null)
{
value = foldesSelector.TextBox.Text;
}
}
string currentValue = this.ParentPropertyPage.GetProperty(propertyName);
if (!String.Equals(value, currentValue, StringComparison.Ordinal))
{
try
{
PropertyValidator.ValidateProperty(propertyName, value);
}
catch (ProjectPropertyArgumentException ex)
{
if (textBox != null)
{
// Don't retrigger Validation when losing focus due to the message box.
textBox.Modified = false;
}
WixHelperMethods.ShowErrorMessageBox(this.ParentPropertyPage.Site, ex.Message);
e.Cancel = true;
if (textBox != null)
{
textBox.Text = currentValue;
textBox.Modified = false;
// Clear the page dirty flag if it was only this textbox that was modified.
int isDirty;
if (this.ParentPropertyPage.ProjectMgr.IsDirty(out isDirty) == 0 && isDirty == 0)
{
this.ParentPropertyPage.IsDirty = false;
}
}
}
}
else if (textBox != null && textBox.Modified)
{
// The text wasn't significantly changed, but might need to be adjusted to the trimmed value.
textBox.Text = value;
textBox.Modified = false;
// Clear the page dirty flag if it was only this textbox that was modified.
int isDirty;
if (this.ParentPropertyPage.ProjectMgr.IsDirty(out isDirty) == 0 && isDirty == 0)
{
this.ParentPropertyPage.IsDirty = false;
}
}
}