c# ComboBox改变活动状态
本文关键字:活动状态 改变 ComboBox | 更新日期: 2023-09-27 18:10:22
我有五个ComboBox
控件,当在ComboBox
1
中选择一个项目时,在ComboBox
2
中创建一个新列表,依此类推直到ComboBox
5
。我需要根据最近选择的项目更改活动状态。这些项目不是通过SelectedIndexChanged
事件选择的,而是在按钮单击事件处理程序中选择的。我一直在编写一些代码,但遇到了僵局。下面是代码:
///////////combo1//////////////////////
int selectedIndex1 = comboBox1.SelectedIndex;
Object selectedItem1 = comboBox1.SelectedItem;
if (selectedItem1.ToString() == "Computers")
{
selectedItem1 = "32";
request.categoryId = selectedItem1.ToString();
}
///////////combo2//////////////////////
int selectedIndex2 = comboBox2.SelectedIndex;
Object selectedItem2 = comboBox2.SelectedItem;
if (selectedItem2.ToString() == "Laptop")
{
selectedItem2= "1772";
request.categoryId = selectedItem2.ToString();
}
问题是,当我这样做时,它不使用ComboBox
2
选中的项目,也不取消ComboBox
1
选中的项目。我需要它取代之前的ComboBox
选中的项目。
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
Object selectedItem1 = comboBox1.SelectedItem;
comboBox2.Enabled = true;
comboBox3.Enabled = false;
comboBox4.Enabled = false;
comboBox5.Enabled = false;
if(selectedItem1.ToString() == "Computers")
{
//update data source for comboBox2 with the relevant data for "Computers"
}
//remove data for comboBox3 4 and 5 witch are now disabled
}