如何用字符串數組填充“ asp：ListBox”？

Question

我有一個asp:Listbox ，我需要根據用戶選擇來關閉項目。 這是我嘗試過的：

 string[] my2012Departments = new string[5];
            my2012Departments[0] = "Administration"; 
            my2012Departments[1] = "Imaging Services"; 
            my2012Departments[2] = "IT"; 
            my2012Departments[3] = "Lab"; 
            my2012Departments[4] = "Support Services";
            lstDSYDepartment.Items.AddRange(my2012Departments.ToArray()); 
           //The AddRange will also not work without .ToArray() 

但是，這會導致以下錯誤：

1.無法從“字符串[]”轉換為“ System.Web.UI.WebControls.ListItem []”

2. .... AddRange ....的最佳重載方法匹配具有一些無效的參數

根據文檔 ，只要我將代碼放入表單加載中，這就應該起作用。

Answer 1

您可以創建一個List<string>並將其分配為列表框的數據源，如下所示

List<string> my2012Departments = new List<string>();
my2012Departments.Add("Administration");
my2012Departments.Add("Imaging Services");
my2012Departments.Add("IT");
my2012Departments.Add("Lab");
my2012Departments.Add("Support Services");


lstDSYDepartment.DataSource = my2012Departments;
lstDSYDepartment.DataBind();

（OR）代替分配字符串數組； 創建一個ListItem[]數組，如下所示

ListItem[] my2012Departments = new ListItem[5];
    my2012Departments[0] = "Administration"; 
    my2012Departments[1] = "Imaging Services"; 
    my2012Departments[2] = "IT"; 
    my2012Departments[3] = "Lab"; 
    my2012Departments[4] = "Support Services";

  this.lstDSYDepartment.Items.AddRange(my2012Departments);

Answer 2

您引用的文檔適用於Windows窗體，而不適用於ASP。

嘗試

lstDSYDepartment.Items.Add("Administration");
lstDSYDepartment.Items.Add("Imaging Services");
...