gridview 实现多字段综合查询

最近写一个模糊综合多个字段的数据表查询，又要保持gridview的现有的功能。如添加，删除，更新，排序。为了简单少些代码，发现如果文本框不填的化，它一般会返回null 或空值，这样就可以使用 like ‘% @name %' 实现模糊查询，也可实现多个字段的查询。

数据库表：CREATE TABLE [dbo].[tq_xianhuo](

[supplyuint] [nvarchar](250) NULL,

[telephone] [nvarchar](50) NULL,

[name] [nvarchar](255) NULL,

[quality] [nvarchar](255) NULL,

[specific] [nvarchar](255) NULL,

[sum] [nvarchar](255) NULL,

[place] [nvarchar](255) NULL,

[factory] [nvarchar](255) NULL,

[data] [datetime] NULL,

[beizhu] [nvarchar](250) NULL,

[id] [int] NOT NULL,

[dp_id] [int] NULL,

CONSTRAINT [PK_tq_xianhuo] PRIMARY KEY CLUSTERED

(

[id] ASC

)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]

) ON [PRIMARY]

存储过程：

ALTER PROCEDURE dbo.xian_list

@supplyuint nvarchar(100),

@name nvarchar(50),

@quality nvarchar(50),

@specific nvarchar(50),

@place nvarchar(50),

@factory nvarchar(50)

AS

if @supplyuint is null

set @supplyuint=''

if @name is null

set @name=''

if @quality is null

set @quality=''

if @specific is null

set @specific=''

if @place is null

set @place=''

if @factory is null

set @factory=''

select * from tq_xianhuo

where

supplyuint like '%'+@supplyuint+'%' and

[name] like '%'+@name+'%' and

quality like '%'+@quality+'%' and

specific like '%'+@specific+'%' and

place like '%'+@place+'%' and

factory like '%'+@factory+'%'

RETURN

default.aspx 显示页面

<asp:SqlDataSource ID="SqlDataSource1" runat="server"

ConnectionString="<%$ ConnectionStrings:tq_fenleiConnectionString %>"

SelectCommand="xian_list" SelectCommandType="StoredProcedure">

<SelectParameters>

<asp:ControlParameter ControlID="TextBox1" ConvertEmptyStringToNull="False"

Name="supplyuint" PropertyName="Text" Type="String" />

<asp:ControlParameter ControlID="TextBox2" ConvertEmptyStringToNull="False"

DefaultValue="" Name="name" PropertyName="Text" />

<asp:ControlParameter ControlID="TextBox3" ConvertEmptyStringToNull="False"

Name="quality" PropertyName="Text" Type="String" />

<asp:ControlParameter ControlID="TextBox4" ConvertEmptyStringToNull="False"

Name="specific" PropertyName="Text" Type="String" />

<asp:ControlParameter ControlID="TextBox5" ConvertEmptyStringToNull="False"

Name="place" PropertyName="Text" Type="String" />

<asp:ControlParameter ControlID="TextBox6" ConvertEmptyStringToNull="False"

Name="factory" PropertyName="Text" Type="String" />

</SelectParameters>

</asp:SqlDataSource>

<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>

<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>

<asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>

<asp:TextBox ID="TextBox4" runat="server"></asp:TextBox>

<asp:TextBox ID="TextBox5" runat="server"></asp:TextBox>

<asp:TextBox ID="TextBox6" runat="server"></asp:TextBox>

<asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Button" />

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"

DataKeyNames="id" DataSourceID="SqlDataSource1">

<Columns>

<asp:BoundField DataField="data" HeaderText="data" SortExpression="data" />

<asp:BoundField DataField="beizhu" HeaderText="beizhu"

SortExpression="beizhu" />

<asp:BoundField DataField="id" HeaderText="id" ReadOnly="True"

SortExpression="id" />

<asp:BoundField DataField="dp_id" HeaderText="dp_id" SortExpression="dp_id" />

</Columns>

</asp:GridView>