Admin/M_LiuyList.aspx.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;

public partial  class Admin_M_LiuyList : System.Web.UI.Page
{
    public string newsContent = "";
    SqlData da = new SqlData();
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            bindToComment();
        }
    }
    private void bindToComment()
    {
        string sql = @"select * from comment";
        DataTable dt = da.datesetExecute(sql, "tbNewsCom").Tables[0];
        if (dt.Rows.Count == 0)
        {
            //无评论
            this.emptypl.Visible = true;
        }
        else
        {
            this.emptypl.Visible = false;
            rptComment.DataSource = dt;
            rptComment.DataBind();
        }
    }

    public void Del(object sender, EventArgs e)
    { 
        int id = Convert.ToInt32((sender as LinkButton).CommandArgument);

        //把sender由object转换成LinkButton后获取CommandArgument的值
        string sql = @"delete  from comment where id=" + id;
        da.ExecuteSQL(sql);
        bindToComment();
    }

    public string GetContent()
    {
        string str = "";
        str = newsContent;
        return str;
    }
}