/*
* Event Handler for Adding Category to the Invetory
*/
private void CategoryButton_Click(object sender, EventArgs e)
{
StreamWriter FileWriter;
FileWriter = File.AppendText(CATEGORYDATABASEFILENAME);
if (CategoryNameTextBox.Text == "")
{
MessageBox.Show("Please enter Category Name");
CategoryNameTextBox.Focus();
CategoryNameTextBox.SelectAll();
}
else
{
if (CategoryList.Contains(CategoryNameTextBox.Text))
{
MessageBox.Show("Category already Exist");
CategoryNameTextBox.Focus();
CategoryNameTextBox.SelectAll();
}
else
{
CategoryList.Add(CategoryNameTextBox.Text);
FileWriter.WriteLine(CategoryNameTextBox.Text);
FileWriter.Close();
MessageBox.Show("Category Added Successfully to the Database");
CategoryNameTextBox.Text = "";
}
}
}
private void CategoryNameTextBox_Validating(object sender, CancelEventArgs e)
{
if (string.IsNullOrWhiteSpace(CategoryNameTextBox.Text))
{
e.Cancel = true;
CategoryNameTextBox.Focus();
CategoryNameTextBoxErrorProvider.SetError(CategoryNameTextBox, "Field is mandatory!");
}
else
{
e.Cancel = false;
CategoryNameTextBoxErrorProvider.SetError(CategoryNameTextBox, "");
}
}