UserMessageManager.aspx.cs

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

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

    }
    protected void  MessageBtn_Click(object sender, EventArgs e)
    {
        //内容不为空，主题不为空。内容小于300字节。
        if (MessageTitle.Text != "" && MessageContent.Text != "" && MessageContent.Text.Length < 300)
        {
            //创建消息对象
            UserMessage msg = new UserMessage { 
                Title=MessageTitle.Text,Name=MessageName.Text,
                Email=MessageEmail.Text, MsContent=MessageContent.Text,
                DateTime=DateTime.Now.Date
            };
            try
            {
                //把留言信息插入数据库
                BookDataBase.AddMessage(msg);
                Response.Write("<script>alert('留言成功')</script>");
            }
            catch
            {
                Response.Redirect("Default.aspx");
            }
        }
        else
            Response.Write("<script>alert('留言失败,主题与内容不为空')</script>");

    }
}