ASP.NET C#将用户添加/更新到角色

Question

大家好我有一个页面显示住宿信息,然后是在DetailsView中创建该信息的人的UserID.

我还有一个按钮,应该看看UserID和单击时将该userID转换为用户名,以便我可以使用该用户名将人员角色更改为租用者.但是我不确定使用C#如何从详细信息视图中获取UserID进行转换并更新角色.有任何想法吗？

标记

@Tim

这是我添加的代码:

public partial class adminonly_approval : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }

    void DetailsView1_ItemCommand(Object sender, DetailsViewCommandEventArgs e){
    if (e.CommandName == "SetToRenter")
    {
        // if UserID is in second row:
        DetailsViewRow row = DetailsView1.Rows[9];

        // Get the Username from the appropriate cell.
        // In this example, the Username is in the second cell  
        String UserID = row.Cells[9].Text;
        MembershipUser memUser = Membership.GetUser(UserID);
        Roles.AddUserToRole(memUser.UserName, "renter");
    }
}

我在详细信息视图下方的页面上添加了一个按钮,并将commandName设置为SetToRenter.当我点击按钮但它没有改变角色时.我是ASP和C#的新手,但需要此功能才能完成大学任务.任何的想法？

Answer 1

Membership.GetUser(用户ID)

MembershipUser memUser = Membership.GetUser(UserId);
Roles.AddUserToRole(memUser.UserName, "Renter");

Roles.AddUserToRole

这里是如何让你的DetailsView的绑定列的值的示例: http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.detailsview.itemcommand.aspx

您应该将Button的CommandName设置为其功能,并在代码隐藏中处理DetailsView.ItemCommand事件.在那里,您可以通过以下方式获取UserID:

void DetailsView1_ItemCommand(Object sender, DetailsViewCommandEventArgs e){
    if (e.CommandName == "SetToRenter")
    {
        // if UserID is in second row:
        DetailsViewRow row = DetailsView1.Rows[1];

        // Get the Username from the appropriate cell.
        // In this example, the Username is in the second cell  
        String UserID = row.Cells[1].Text;
        MembershipUser memUser = Membership.GetUser(UserId);
        Roles.AddUserToRole(memUser.UserName, "Renter");
    }
}

正如Cem所提到的,你应该设置DetailsView的DataKey属性.然后您还可以通过以下方式获取当前记录的PK:

// Get the ArrayList objects that represent the key fields
ArrayList keys = (ArrayList)(DetailsView1.DataKey.Values).Keys;
// Get the key field for the current record. 
String UserID = keys[0].ToString();

更简单的是DetailsView 的快捷方式SelectedValue:

String UserID= DetailsView1.SelectedValue.ToString();