def Form1_Load(self, sender, e):
    self.info = getLayerLineInfo()
    for layer in self.info:
        self.comboBox_layer.Items.Add(layer)
        self.comboBox_layer.SelectedIndex = 0
def Form1_Load(self, sender, e):
    self.info = getLayerLineInfo()
    for layer in self.info:
        self.comboBox_layer.Items.Add(layer)
        self.comboBox_layer.SelectedIndex = 0