admin/AddType.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;
using System.Data.SqlClient;
public partial class admin_AddType : System.Web.UI.Page
{
    SqlOperate sqloperate = new SqlOperate();
    SqlConnection sqlconn = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString);
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void btnAdd_Click(object sender, EventArgs e)
    {
        string sqltest = "select * from tb_GoodsType where GoodsTypeName='" + txtSName.Text + "'";
        sqlconn.Open();
        SqlCommand sqlcom = new SqlCommand(sqltest, sqlconn);
        SqlDataReader read = sqlcom.ExecuteReader();
        read.Read();
        if (read.HasRows)
        {
            if (this.txtSName.Text.Trim() == read["GoodsTypeName"].ToString().Trim())
            {
                Response.Write("<script language='javascript'>alert('该类别已经存在');localtion='AddType.aspx'</script>");
                return;
            }
        }
        else
        {
            string sqlstr = "insert into tb_GoodsType(GoodsTypeName) values('" + txtSName.Text.Trim() + "')";
            sqloperate.DataCom(sqlstr);
            Alert.AlertAndRedirect("添加成功", "Typemanger.aspx");
        }
    }
}