addroletouser.aspx.cs

角色及用户管理源代码和帮助说明,供大家参考、下载！

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;

public partial class security_AddRoleToUser : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            gvRoles.DataSource = Roles.GetAllRoles();
            gvRoles.DataBind();
            gvUsers.DataSource = Membership.GetAllUsers();
            gvUsers.DataBind();
        }
    }
    protected void LinkButtonClick(object sender, CommandEventArgs e)
    {
        // 实现角色编辑
        if (e.CommandName.Equals("EditRole"))
        {
            //显示用户信息，主要设置CheckBox的选中状态
            string roleName = e.CommandArgument.ToString();
            gvUsers.Caption = "设置角色<b>" + roleName + "</b>的用户";
            for (int i = 0; i < Membership.GetAllUsers().Count; i++)
            {
                CheckBox cb = (CheckBox)gvUsers.Rows[i].FindControl("cbUserInRole");
                string username = cb.ToolTip;
                cb.Checked = Roles.IsUserInRole(username, roleName);
                //将角色信息传递到显示角色信息列表中
                cb.Attributes["role"] = roleName;
            }
            plUsers.Visible = true;
        }
        //处理角色删除
        if (e.CommandName.Equals("DeleteRole"))
        {
            string delRole = e.CommandArgument.ToString();
            int temp = Roles.GetUsersInRole(delRole).Length;
            //如果角色中还包含用户，则不删除
            if (temp != 0)
            {
                lbMessage.Text = "该角色中还包含一些用户，因此不能删除.";
                return;
            }
            // 调用DeleteRole方法进行删除
            if (Roles.DeleteRole(delRole))
            {
                gvRoles.DataSource = Roles.GetAllRoles();
                gvRoles.DataBind();
                lbMessage.Text = "删除成功.";
            }
            else
            {
                lbMessage.Text = "未能删除成功.";
            }
        }
    }
    protected void btnSubmit_Click(object sender, EventArgs e)
    {
        string createRole = txtRole.Text;
        //如果角色为空，则要求输入角色名
        if (txtRole.Text == string.Empty)
        {
            lbMessage.Text = "请输入角色名.";
            return;
        }
        //如果角色不存在，则调用CreateRole方法创建角色；否则显示提示信息
        if (!Roles.RoleExists(createRole))
        {
            Roles.CreateRole(createRole);
            gvRoles.DataSource = Roles.GetAllRoles();
            gvRoles.DataBind();
            lbMessage.Text = "添加成功.";
        }
        else
        {
            lbMessage.Text = "存在同名的角色.";
        }
    }
    protected void CheckBox_Click(object sender, EventArgs e)
    {
        try
        {
            //获取角色和用户信息
            CheckBox cbUserInRole = (CheckBox)sender;
            string username = cbUserInRole.ToolTip;
            string roleName = cbUserInRole.Attributes["role"];
            //如果未被选中，则调用RemoveUserFromRole删除用户；否则调用AddUserToRole添加用户
            if (!cbUserInRole.Checked)
            {
                Roles.RemoveUserFromRole(username, roleName);
            }
            else
            {
                Roles.AddUserToRole(username, roleName);
            }
            lbMessage.Text = "更新成功.";
        }
        catch (System.Configuration.Provider.ProviderException ex)
        {
            //抛出异常
            lbMessage.Text = ex.Message;
        }
    }
}