private void ComboBoxWithImg_Load(object sender, EventArgs e)
{
comboBox = new MyImgComboBox();
comboBox.SetBounds(2, 2, 200, 50);
comboBox.ItemHeight = 50;
this.Controls.Add(comboBox);
Image img = new Bitmap(this.GetType(), "1.jpg");
MyComboBoxItem firstItem = new MyComboBoxItem(img, "S***n");
comboBox.Items.Add(firstItem);
comboBox.SelectedIndex = 0;
}
private void cb1_SelectedIndexChanged(object sender, EventArgs e)
{
//get the combobox item
MyComboBoxItem item = (sender as ComboBox).SelectedItem as MyComboBoxItem;
//make sure no shinanigans are going on
if (item == null)
{
return;
}
//clear out combobox 2
cb2.Items.Clear();
//add sub items
cb2.Items.AddRange(item.SubItems.ToArray());
}
public MainWindow()
{
InitializeComponent();
var data = new List <HocSinh> {
new HocSinh {
MSSV = 20172605, Name = "Le Quang Huy"
},
new HocSinh {
MSSV = 20172538, Name = "Nguyen Thi Hien"
},
};
var sp = new StackPanel
{
Background = Brushes.AliceBlue,
Orientation = Orientation.Horizontal,
};
var mcb = new MyComboBox();
foreach (var item in data)
{
var mcbi = new MyComboBoxItem(item, "Name", "MSSV");
mcb.Add(mcbi);
}
var bt = new Button
{
Content = "Submit",
Width = 50,
Height = 25,
};
bt.Click += (s, e) =>
{
MessageBox.Show(mcb.SelectedItem.ReturnValue.ToString());
};
sp.Children.Add(mcb);
sp.Children.Add(bt);
Content = sp;
}
public void Add(MyComboBoxItem i)
{
i.MouseMove += (s, e) =>
{
i.IsFocus = true;
i.BorderItem.Background = Brushes.LightGray;
};
i.MouseLeave += (s, e) =>
{
i.IsFocus = false;
i.BorderItem.Background = Brushes.White;
};
i.MouseLeftButtonDown += (s, e) =>
{
Input.Text = i.DisplayValue;
SelectedItem = i;
};
this.KeyDown += (s, e) =>
{
if (e.Key == Key.Enter)
{
if (i.IsFocus == true)
{
Input.Text = i.DisplayValue;
SelectedItem = i;
Popup.IsOpen = false;
}
}
};
Items.Children.Add(i);
}
private void btnAdd_Click(object sender, EventArgs e)
{
MyComboBoxItem newItem = new MyComboBoxItem(Image.FromFile(pictureFileName), textBox1.Text);
comboBox.Items.Add(newItem);
}
