我建立一个SqlDataSource和一个GridView:为什么我的gridview为空?
<asp:SqlDataSource ID="DetailsSQLDataSource" runat="server" ConnectionString="<%$ ConnectionStrings:aspnet-WebApplication6-20131007103938ConnectionString1 %>"
SelectCommand="SELECT [ProjectID], [ProjectName], [CreatorID], [Deadline] FROM [tProject] WHERE 1=1"
>
<SelectParameters>
<asp:Parameter Type="String" Name="ProjectID"></asp:Parameter>
</SelectParameters>
</asp:SqlDataSource>
<asp:GridView ID="GridView1" runat="server" DataSourceID="DetailsSQLDataSource" AutoGenerateColumns="False" DataKeyNames="ProjectID" OnRowUpdated="GridView1_RowUpdated" OnRowUpdating="GridView1_RowUpdating">
<Columns>
<asp:BoundField DataField="ProjectID" HeaderText="ProjectID" ReadOnly="True" SortExpression="ProjectID"></asp:BoundField>
<asp:BoundField DataField="ProjectName" HeaderText="ProjectName" SortExpression="ProjectName"></asp:BoundField>
<asp:BoundField DataField="CreatorID" HeaderText="CreatorID" SortExpression="CreatorID"></asp:BoundField>
<asp:BoundField DataField="Deadline" HeaderText="Deadline" SortExpression="Deadline"></asp:BoundField>
</Columns>
</asp:GridView>
我已经测试的SelectCommand,并且它返回一个表具有4行。但是没有数据要显示在gridview中。代码隐藏几乎是空的,肯定不会影响这些控件。它可以是连接的东西吗?我如何测试?
卡尔建议,在你的页面加载事件调用Gridview1.DataBind()。像这样if(!IsPostback)GridView1.DataBind(); –