query_delclass.aspx.cs

项目开发完整系统

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 XTeamBBL;



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

    }

    private void init_class()
    {
        string select_sql = "select * from class";
        DataSet ds = Class.select_class(select_sql);
        GVclass.DataSource = ds;
        GVclass.DataBind();
    }


    protected void BTxQueryclass_name_Click(object sender, EventArgs e)
    {
        string select_sql = "select * from class";
        if (TBxclass_name.Text != "")
        {
            select_sql += " where class_name like '%" + TBxclass_name.Text + "%'";
        }
        DataSet ds = Class.select_class(select_sql);
        GVclass.DataSource = ds;
        GVclass.DataBind();

    }



    protected void GVclass_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            ((LinkButton)(e.Row.Cells[6].Controls[0])).Attributes.Add("onclick", "return confirm('确定要删除吗')");
            e.Row.Attributes.Add("onmouseover", "this.style.backgroundColor='#E0E0E0';this.style.cursor='hand'");
            e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor='white'");

        }
    }

    protected void GVclass_RowDeleting(object sender, GridViewDeleteEventArgs e)
    {
        Boolean flag = true;
        int classID = Convert.ToInt32(GVclass.DataKeys[e.RowIndex].Value.ToString());
        Class cs = new Class(classID);
        try
        {
            flag = Class.del_class(cs);
        }
        catch (Exception)
        {
            Response.Write("<script>alert('删除失败,可能存在数据依赖,请先删除其他数据,再执行些操作');</script>");
        }
        finally
        {
            if (flag) { Response.Write("<script>alert('删除成功');</script>"); }
            else Response.Write("<script>alert('删除失败');</script>");
            init_class();

        }
    }
}