过滤gridview

Question

我有一个gridview,我通过代码绑定绑定,我想根据用户在文本框中给出的值过滤gridview.

如果我能够在没有任何回发的情况下过滤gridview,那就太棒了.

请帮忙!

提前致谢

Answer 1

你可以运行一个过滤表达式

<asp:sqldatasource id="articles" runat="server"
   connectionstring="<%$ ConnectionStrings:aspa %>" 
   selectcommand="SELECT title, url, added, updated FROM aspx_articles ORDER BY title" 
   filterexpression="title LIKE '%{0}%' or url LIKE '%{0}%'">
   <filterparameters>
      <asp:controlparameter controlid="searchBox" propertyname="Text" />
   </filterparameters>
</asp:sqldatasource>

或者这样

你是否在GridView外部有一个TextBox,当你输入数据并按下按钮时,GirdView应该过滤掉那些数据？

如果是这样,请确保您的select命令可以使用您要过滤的值来获取参数.将ControlParameter添加到DataSource控件的SelectParameters colelction(如果使用DataSource控件).

下面是一个使用Northwind数据库的示例,这可能对您有所帮助:

<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
        <asp:Button ID="Button1" runat="server" Text="Button" />
        <asp:GridView ID="GridView1" runat="server" AllowPaging="True" AutoGenerateColumns="False"
            DataKeyNames="ProductID" DataSourceID="SqlDataSource1" ShowFooter="True">
            <Columns>
                <asp:CommandField ShowSelectButton="True" />
                <asp:BoundField DataField="ProductID" HeaderText="ProductID" InsertVisible="False"
                    ReadOnly="True" SortExpression="ProductID" />
                <asp:BoundField DataField="ProductName" HeaderText="ProductName" SortExpression="ProductName" />
                <asp:BoundField DataField="UnitsInStock" HeaderText="UnitsInStock" SortExpression="UnitsInStock" />
                <asp:BoundField DataField="UnitPrice" HeaderText="UnitPrice" SortExpression="UnitPrice" />
            </Columns>
        </asp:GridView>
        <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:NorthwindConnectionString %>"
            SelectCommand="SELECT [ProductID], [ProductName], [UnitsInStock], [UnitPrice] FROM [Alphabetical list of products] WHERE ([ProductName] LIKE '%' + @ProductName + '%')">
            <SelectParameters>
                <asp:ControlParameter ControlID="TextBox1" DefaultValue="%" Name="ProductName" PropertyName="Text"
                    Type="String" />
            </SelectParameters>
        </asp:SqlDataSource>

代码见http://forums.asp.net/p/1034014/2904713.aspx