使用存储过程实现显示搜索结果和数据条数

来源：互联网发布：ubuntu 解压缩命令编辑：程序博客网时间：2024/05/23 11:45

存储过程：

CREATE PROC Pro_GetNewsByTitleAndContentNumb
@newsKey VARCHAR(64),
@numb int out
AS
SELECT NewsTitle,SUBSTRING(NewsContent,1,20)+'......' as NewsContent,CreateTime FROM T_News
WHERE NewsTitle like @newsKey or NewsContent like @newsKey;
SELECT @numb=COUNT(*)FROM T_News
WHERE NewsTitle like @newsKey or NewsContent like @newsKey;

前台代码：

<body>
    <form id="form1" runat="server">
    <div>标题：<asp:TextBox ID="txtNewsTitle" runat="server" ></asp:TextBox>
 <asp:Button ID="btnQuery" runat="server" Text="搜索" onclick="btnQuery_Click" />   共搜索到了<asp:Label
    ID="Label1" runat="server" Text=""></asp:Label>条数据

后台代码：

string conStr = @"Data Source=.;Initial Catalog=News;Persist Security Info=True;User ID=sa;Password=111111";

        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                DataLoad();
            }
        }

        private void DataLoad()
        {
            #region 根据用户的输入获取数据
            SqlConnection conn = new SqlConnection(conStr);
            conn.Open();
            SqlCommand cmd = new SqlCommand();
            cmd.Connection = conn;
            cmd.CommandText = "Pro_GetNewsByTitleAndContentNumb";
            cmd.CommandType = CommandType.StoredProcedure;
            cmd.Parameters.AddWithValue("@newsKey", "%" + txtNewsTitle.Text + "%");

            #region output参数
            SqlParameter param1 = new SqlParameter("@numb", SqlDbType.Int);
            cmd.Parameters.Add(param1);
            param1.Direction = ParameterDirection.Output;
            #endregion

            SqlDataAdapter adapter = new SqlDataAdapter(cmd);
            DataTable dt = new DataTable();
            adapter.Fill(dt);
            StringBuilder sb1 = new StringBuilder();
            #endregion

            #region 将数据拼接成字符串发送到前台
            Label1.Text = (param1.Value).ToString();
            string newscontent = string.Empty;
            string newstitle = string.Empty;
            sb1.Append("<table border=2");
            sb1.Append("<tr><td>标题</td><td>内容</td><td>创建时间</td></tr>");
            foreach (DataRow row in dt.Rows)
            {
                sb1.Append("<tr>");
                newstitle = row["NewsTitle"].ToString();
                sb1.Append("<td>" + newstitle + "</td>");
                newscontent = row["NewsContent"].ToString();
                sb1.Append("<td>" + newscontent + "</td>");
                sb1.Append("<td>" + Convert.ToDateTime(row["CreateTime"].ToString()).ToString("yyyy-MM-dd hh-mm-ss") + "</td>");
                sb1.Append("</tr>");
            }
            sb1.Append("</table>");
            divResult.InnerHtml = sb1.ToString();
            cmd.ExecuteNonQuery();
            cmd.Dispose();
            conn.Dispose();
            #endregion
        }

        protected void btnQuery_Click(object sender, EventArgs e)
        {
            DataLoad();
        }