我建立了一个 ASP.net 项目,但我是新手......
我遇到了这个问题:
有一个 textbox1 和按钮名称 = 过滤器和网格视图
有太表的数据库(标记,课程)
当我在 textbox1 中写一个句子并按过滤器网格视图连接到数据库并根据 textbox1 内容获取数据时,我需要
默认情况下,所有东西都没有过滤器
我做到了,但网格视图没有出现,没有错误
<table >
<tr>
<td colspan= "2" bgcolor="#4B6C9E" >
<font color = white> Choose The Course :</font>
</td>
</tr>
<tr>
<td> <asp:Label ID="Label1" runat="server" Text="Course :" ></asp:Label>
</td>
<td><asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
</td>
</tr>
<tr>
<td colspan = "2" align = "center">
<asp:Button ID="Button1" runat="server" Text="Filter" />
</td>
</tr>
</table>
<br />
<br />
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
DataSourceID="SqlDataSource1">
<Columns>
<asp:BoundField DataField="StdID" HeaderText="StdID" SortExpression="StdID" />
<asp:BoundField DataField="Mark" HeaderText="Mark" SortExpression="Mark" />
<asp:BoundField DataField="CourseID" HeaderText="CourseID"
SortExpression="CourseID" />
<asp:BoundField DataField="StudentName" HeaderText="StudentName"
SortExpression="StudentName" />
<asp:BoundField DataField="CourseName" HeaderText="CourseName"
SortExpression="CourseName" />
<asp:BoundField DataField="Year" HeaderText="Year" SortExpression="Year" />
<asp:BoundField DataField="Semester" HeaderText="Semester"
SortExpression="Semester" />
<asp:BoundField DataField="Grade" HeaderText="Grade" SortExpression="Grade" />
</Columns>
</asp:GridView>
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
SelectCommand="SELECT Marks.StdID, Marks.Mark, Marks.CourseID, Marks.StudentName, Course.CourseName, Course.Year, Course.Semester, Course.Grade FROM Marks INNER JOIN Course ON Marks.CourseID = Course.ID WHERE (Course.CourseName LIKE '@name')">
<SelectParameters>
<asp:ControlParameter Name="name" ControlID="TextBox1" PropertyName="Text" DefaultValue="%" Type="String" />
</SelectParameters>
</asp:SqlDataSource>
注意:当我在数据库中执行查询时,它工作得很好
请尽快提供帮助