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asp.net(C#)中实现多个DropDownList及多个TextBox的多条件查询

2024-11-20 18:24:39   202人阅读

这里是通过语句拼接来实现多条件查询的

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主要代码：

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default19.aspx.cs" Inherits="Default19" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:DropDownList ID="DropDownList1" runat="server" Width="80px">
            <asp:ListItem Text="序号" Value=http://www.mamicode.com/"SerialNumber" />>
   protected void btn_search_Click(object sender, EventArgs e)
    {
        string strfacy = "select * from tOrderReview where 1=1";
        if (!string.IsNullOrEmpty(tb_x1.Text.ToString()))
        {
            strfacy += " and " + DropDownList1.SelectedValue.ToString() + " like '%" + tb_x1.Text.ToString() + "%'";
        }
        if (!string.IsNullOrEmpty(tb_x2.Text.ToString()))
        {
            strfacy += " and " + DropDownList2.SelectedValue.ToString() + " like '%" + tb_x2.Text.ToString() + "%'";
        }
        if (!string.IsNullOrEmpty(tb_x3.Text.ToString()))
        {
            strfacy += " and " + DropDownList3.SelectedValue.ToString() + " like '%" + tb_x3.Text.ToString() + "%'";
        }
        strfacy += " order by OrderID desc";
        //GridBind(strfacy);
    }

大体情况就是这个样子了，蛮好用的，比我以前用的方法简单多了
asp.net(C#)中实现多个DropDownList及多个TextBox的多条件查询


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