我有这个代码:
protected void Button1_Click(object sender, EventArgs e)
{
System.Data.SqlClient.SqlConnection sc = new System.Data.SqlClient.SqlConnection(GetConnectionString());
{
System.Data.SqlClient.SqlCommand cmd;
sc.Open();
cmd = new System.Data.SqlClient.SqlCommand("SET IDENTITY_INSERT Zapas OFF INSERT INTO Zapas (Zapas.Sezona,.....)SELECT Zapas.Sezona,... FROM Zapas WHERE ID_zapas=@ID;", sc);
cmd.Parameters.Add(new System.Data.SqlClient.SqlParameter("@ID", System.Data.SqlDbType.Text)).Value = (TextBox)ListView1.FindControl("box1");
cmd.ExecuteNonQuery();
sc.Close();
Response.Redirect("~/Zapasy_seznam.aspx");
}
}
我需要从 listview 中获取值 ID,但是使用此代码时出现此错误:
...expects the parameter '@ID', which was not supplied....
我的列表视图的这一部分...
<asp:ListView ID="ListView1" runat="server" DataKeyNames="ID_zapas" DataSourceID="SqlDataSource1" style="text-align: center ">
<AlternatingItemTemplate>
<tr style="background-color: #e9ffe9;color: #284775;text-align:center">
<td>
<asp:TextBox ID="box1" runat="server" Text='<%# Eval("ID_zapas") %>' Visible="false" />
...
<td style="width:50px;background-color:white">
<asp:LinkButton ID="Button1" runat="server" OnClick="Button1_Click" Visible='<%# HttpContext.Current.User.IsInRole("admin") %>' CausesValidation="False" OnClientClick="javascript: return confirm('Opravdu chcete zápas zkopírovat?');">
<asp:Image ID="Image2" runat="server" ImageUrl="~/Icons/copy.png" Width="29px" Height="29px" ToolTip="Zkopírovat zápas" />
</asp:LinkButton>
</td>
</tr>
</AlternatingItemTemplate>
你有什么想法吗?