adminhomedelete.aspx.cs

学生寝室管理系统

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 System.Data.SqlClient ;
public partial class adminhomedelete : System.Web.UI.Page
{
    SqlCommand  cmd, cmd1, cmd2;
    SqlConnection  cn;
  SqlDataReader  dr, dr1;
  SqlDataAdapter  da, da1;
    DataSet ds = new DataSet();
    DataSet ds1 = new DataSet();

    string strcon, strsql, strsql1, strsql2;
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!this.IsPostBack)
        {
            if (Session["adminname"] == null)
            {
                Response.Redirect("index.aspx");
            }
            else
            {
                this.databindlist();
            }
        }

    }
    private void databindlist()
    {
        cn = sqldata.createcon();
        cn.Open();
        strsql = "select * from homedetail";
        da = new SqlDataAdapter (strsql, cn);
        da.Fill(ds, "home");
        this.mydatagrid.DataKeyField = "id";
        this.mydatagrid.DataSource = ds.Tables["home"].DefaultView;
        this.mydatagrid.DataBind();
    }
    protected void mydatagrid_DeleteCommand(object source, DataGridCommandEventArgs e)
    {
        int id =Convert .ToInt32 ( this.mydatagrid.DataKeys[e.Item.ItemIndex].ToString());
        cn = sqldata.createcon();
        cn.Open();
        strsql1 = "delete from homedetail where id='" + id + "'";
        cmd1 = new SqlCommand (strsql1, cn);
        cmd1.ExecuteNonQuery();
        this.databindlist();
        this.Label2.Text = "删除成功";
    }
    
    protected void mydatagrid_ItemDataBound(object sender, DataGridItemEventArgs e)
    {
        if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
        {
            e.Item.Attributes.Add("onmouseover", "c=this.style.backgroundColor;this.style.backgroundColor='#d3d3d3'");
            e.Item.Attributes.Add("onmouseout", "this.style.backgroundColor=c");
            ((LinkButton)(e.Item.Cells[3].Controls[0])).Attributes.Add("onclick", "return confirm('您确认要删除吗?');");
        }
    }
    protected void mydatagrid_PageIndexChanged(object source, DataGridPageChangedEventArgs e)
    {
        this.mydatagrid.CurrentPageIndex = e.NewPageIndex;
        this.databindlist();
    }

 
}