userlists.aspx.cs

一个使用ASP。net和SQLServer2005开发的图书管理系统

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.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using MyLibrary.BusinessLogicLayer;
using System.Data.SqlClient;

public partial class UsersManage_UserLists : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!this.IsPostBack)
        {
            GridViewBind();
        }
    }

    //为GridView控件绑定数据
    private void GridViewBind()
    {
        Users user = new Users();//创建Users类对象user
        DataSet ds=user.QueryUsers();//使用Users类QueryUsers方法查询所有用户信息
        GridView1.DataSource = ds;//为GridView控件指名数据源
        GridView1.DataBind();//GridView控件绑定数据
    }
    protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (((DropDownList)e.Row.FindControl("ddlPower")) != null)
        {
            DropDownList ddlpower = (DropDownList)e.Row.FindControl("ddlPower");

            //  生成 DropDownList 的值，绑定数据
            string connStr = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;            
            DataSet ds = new DataSet();
            SqlConnection conn = new SqlConnection(connStr);
            if (conn.State.ToString() == "Closed") conn.Open();
            SqlDataAdapter da = new SqlDataAdapter("Proc_PowerList", conn);
            da.Fill(ds);
            if (conn.State.ToString() == "Open") conn.Close();

            ddlpower.DataSource = ds.Tables[0].DefaultView;
            ddlpower.DataTextField = "Name";
            ddlpower.DataValueField = "ID";
            ddlpower.DataBind();            
            ddlpower.SelectedItem.Text = ((HiddenField)e.Row.FindControl("hdfPower")).Value;            
        }

    }
    protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
    {
        GridView1.EditIndex = -1;
        GridViewBind();
    }
    //GridView控件RowDeleting事件
    protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
    {
        string userID = GridView1.DataKeys[e.RowIndex].Values[0].ToString(); //取出要删除记录的主键值
        Users user = new Users();//创建Users类对象user
        if (user.DeleteByProc(userID))//根据主键使用DeleteByProc方法删除用户
        {
            Response.Write("<script language=javascript>alert('删除成功!')</script>");
        }
        else
        {
            Response.Write("<script language=javascript>alert('删除失败!')</script>");
        }
        GridView1.EditIndex = -1;
        GridViewBind();//重新绑定数据
        
    }
    protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
    {
        GridView1.EditIndex = e.NewEditIndex;  //GridView编辑项索引等于单击行的索引
        GridViewBind();
    }
    //GridView控件RowUpdating事件
    protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
    {
        string userID = GridView1.DataKeys[e.RowIndex].Values[0].ToString(); //取出要删除记录的主键值
        Users user = new Users();
        user.UserName = ((TextBox)GridView1.Rows[e.RowIndex].FindControl("txtName")).Text;
        user.UserPower = int.Parse(((DropDownList)GridView1.Rows[e.RowIndex].FindControl("ddlPower")).SelectedValue);   //取出修改后的值
        user.UserDepart = ((TextBox)GridView1.Rows[e.RowIndex].FindControl("txtDepart")).Text;
        user.UserTelephone = GridView1.Rows[e.RowIndex].Cells[4].Text;
        user.UserEMail = GridView1.Rows[e.RowIndex].Cells[5].Text;
        if (user.UpdateByProc(userID))//使用Users类UpdateByProc方法修改用户信息
        {
            Response.Write("<script language=javascript>alert('修改成功!')</script>");
        }
        else
        {
            Response.Write("<script language=javascript>alert('修改成功!')</script>");
        }
        GridView1.EditIndex = -1;
        GridViewBind();       
    }
}