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

这里是通过语句拼接来实现多条件查询的

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

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="SerialNumber" />
            <asp:ListItem Text="客户代码" Value="CustomCode" />
            <asp:ListItem Text="客户PO" Value="CustomPO" />
            <asp:ListItem Text="是否急单" Value="OrderGrade" />
            <asp:ListItem Text="申请人" Value="ApplicantName" />
        </asp:DropDownList>
        <asp:TextBox ID="tb_x1" runat="server" Width="140px">
        </asp:TextBox>
        <asp:DropDownList ID="DropDownList2" runat="server" Width="80px">
            <asp:ListItem Text="序号" Value="SerialNumber" />
            <asp:ListItem Text="客户代码" Value="CustomCode" />
            <asp:ListItem Text="客户PO" Value="CustomPO" />
            <asp:ListItem Text="是否急单" Value="OrderGrade" />
            <asp:ListItem Text="申请人" Value="ApplicantName" />
        </asp:DropDownList>
        <asp:TextBox ID="tb_x2" runat="server" Width="140px">
        </asp:TextBox>
        <asp:DropDownList ID="DropDownList3" runat="server" Width="80px">
            <asp:ListItem Text="序号" Value="SerialNumber" />
            <asp:ListItem Text="客户代码" Value="CustomCode" />
            <asp:ListItem Text="客户PO" Value="CustomPO" />
            <asp:ListItem Text="是否急单" Value="OrderGrade" />
            <asp:ListItem Text="申请人" Value="ApplicantName" />
        </asp:DropDownList>
        <asp:TextBox ID="tb_x3" runat="server" Width="140px">
        </asp:TextBox>
        <asp:Button ID="btn_search" runat="server" Text="检索" OnClick="btn_search_Click">
        </asp:Button>
    </div>
    </form>
</body>
</html>

   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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