private void ColourListBox_SelectedIndexChanged(object sender, EventArgs e)
{
if (ColourListBox.SelectedIndex > -1)
{
//Update the textboxes with the new selected item
Colour selectedColour = (Colour)ColourListBox.SelectedItem;
ColourIDTextBox.Text = selectedColour.Id.ToString();
ColourNameTextBox.Text = selectedColour.Name;
}
}
private void SelectColourFromListBox(int colourId)
{
foreach (var item in ColourListBox.Items)
{
Colour colours = (Colour)item;
if (colours.Id == colourId)
{
//select the colour as it has been found
ColourListBox.SelectedItem = item;
return;
}
}
}
private void SaveColourButton_Click(object sender, EventArgs e)
{
if (ColourIDTextBox.Text == string.Empty)
{
//Create a new colour entry
Colour colours = new Colour();
colours.Name = ColourNameTextBox.Text;
//call the method in ColoursMaanger to save the data
Colour saveColour = ColoursManager.AddColour(colours);
//create a message to indicate it was successful
MessageBox.Show("New colour added.");
//refresh the list to display the new information
List <Colour> coloursList = ColoursManager.GetColourList();
ColourListBox.DataSource = coloursList;
//select the new colour from the list
SelectColourFromListBox(saveColour.Id);
}
else
{
//Update existing colour entry
int colourId = int.Parse(ColourIDTextBox.Text);
string colourName = ColourNameTextBox.Text;
if (ColoursManager.UpdateColour(colourId, colourName) == 1)
{
//update is successful
MessageBox.Show("Colour has been updated.");
//Get the list of types, and refresh the list box
//Re-select the value in the list box
List <Colour> colourList = ColoursManager.GetColourList();
ColourListBox.DataSource = colourList;
}
else
{
MessageBox.Show("Colour has NOT been updated.");
}
}
}
