How to use the ASP.NET DropDownList control
- 2020-05-09 18:26:59
- OfStack
1. Data binding
2. Read data
this.DropDownList1.DataSource = CategoryManager.getCategories();
DropDownList1.DataValueField = "id";// Used to set the drop-down list selection Value value
DropDownList1.DataTextField = "name";// The value displayed for the drop-down list option
DropDownList1.DataBind();
2. Read data
int categoryId = int.Parse(this.DropDownList1.SelectedItem.Value);// Gets the selected value in the drop-down list