Admin/ggEdit.aspx.cs

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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;

public partial class Admin_ggEdit : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            DataTable dt = new DataTable();
            if (Request.QueryString["ID"] != null)
            {
                //显示当前的班级公告

                this.TextBox1.ReadOnly = true;
                dt = db.GetData("select * from 班级公告 where 公告代码='" + Request.QueryString["ID"] + "'");
                if (dt.Rows.Count > 0)
                {

                    this.TextBox1.Text = dt.Rows[0]["公告主题"].ToString();
                    this.TextBox3.Text = dt.Rows[0]["公告内容"].ToString();
                    this.TextBox2.Text = dt.Rows[0]["公告时间"].ToString();
                }
            }
        }
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        //跳转页面
        Response.Redirect("Ggxx.aspx");
    }
    protected void Button2_Click(object sender, EventArgs e)
    {
        //根据标志 添加或修改公告信息 跳转页面

        if (Request.QueryString["ID"] != null)
        {
            db.Execute("update 班级公告 set 公告主题='" + TextBox1.Text + "',公告内容='" + TextBox3.Text + "',公告时间='" + TextBox2.Text + "'  where 公告代码='" + Request.QueryString["ID"] + "'");
        }
        else
        {
            db.Execute("insert into 班级公告(公告主题,公告内容,公告时间) values('" + this.TextBox1.Text + "','" + TextBox3.Text + "','" + TextBox2.Text + "')");

        }
        Response.Redirect("Ggxx.aspx");

    }
}