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我知道有很多問題都貼出來與我的問題有關。但我的代碼中有特定的問題。列「ColumnName」不屬於表
我在asp.net 3.5和SQL server 2008中開發了一個應用程序，並在裝有Windows Server 2003操作系統的機器上的IIS 6.0中進行測試。它對7個用戶來說運行良好，但對於超過7個用戶，它會給出錯誤「Column'ColumnName'不屬於表」。這個錯誤經常出現在任何頁面上。它也在本地機器上運行，但在IIS上託管後出現錯誤。 以下是供您參考的頁面結構和代碼文件。
<asp:Content ID="Content2" ContentPlaceHolderID="AdminMasterContentPlaceHolder" runat="Server">
<div>
<asp:UpdatePanel ID="upGroups" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:Panel ID="pnlGroups" runat="server" Width="90%">
<table>
<tr>
<td align="left">
<asp:Label ID="lblGroups" runat="server" Text="Groups" class="altheading"></asp:Label>
</td>
</tr>
<tr>
<td><asp:Label ID="lblshow" runat="server" Text="" ForeColor="Red" CssClass="altlabel"></asp:Label>
</td>
</tr>
<tr>
<td align="right">
<asp:Button ID="imgAddGroup" runat="server" Text="Add Group" OnClick="imgAddGroup_Click" />
<asp:Button ID="imgdeleteGroup" runat="server" Text="Delete" OnClick="imgdeleteGroup_Click"
CausesValidation="False" OnClientClick="javascript:return confirm('Do you want to delete the record?');" />
</td>
</tr>
<tr>
<td>
<asp:GridView ID="grdviewGroups" runat="server" AutoGenerateColumns="False" DataKeyNames="GroupID"
AllowPaging="True" AllowSorting="True" OnDataBound="grdviewGroups_DataBound"
OnRowCommand="grdviewGroups_RowCommand" Width="500px" OnPageIndexChanging="grdviewGroups_PageIndexChanging"
OnSelectedIndexChanged="grdviewGroups_SelectedIndexChanged1" CssClass="gridtable">
<EmptyDataTemplate>
<asp:Label ID="lblemptygridmsg" runat="server" Text="There is no data to show"></asp:Label></EmptyDataTemplate>
<Columns>
<asp:TemplateField HeaderStyle-HorizontalAlign="Center" ItemStyle-HorizontalAlign="Center">
<EditItemTemplate>
<asp:CheckBox ID="chkGroups" runat="server" />
</EditItemTemplate>
<ItemTemplate>
<asp:CheckBox ID="chkGroups" runat="server" />
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="RowNumber" HeaderText="Id" ItemStyle-HorizontalAlign="Center" />
<asp:BoundField DataField="GroupID" Visible="False" />
<asp:TemplateField HeaderText="Group Code">
<ItemStyle HorizontalAlign="Left" ForeColor="#0033CC" />
<ItemTemplate>
<asp:LinkButton ID="lnkGroupCode" runat="server" CommandName="GroupCode" Text='<%# Eval("GroupCode") %>'
CommandArgument='<%# Eval("GroupID") %>' Font-Underline="True" ForeColor="#0033CC"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Group Name">
<ItemStyle HorizontalAlign="left" ForeColor="#0033CC" />
<ItemTemplate>
<asp:LinkButton ID="lnkGroupName" runat="server" CommandName="GroupName" Text='<%# Eval("GroupName") %>'
CommandArgument='<%# Eval("GroupID") %>' Font-Underline="True" ForeColor="#0033CC"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="GroupDescription" HeaderText="Description" />
</Columns>
</asp:GridView>
</td>
</tr>
</table>
</asp:Panel>
</ContentTemplate>
</asp:UpdatePanel>
</div>
public partial class Admin_Groups : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
ValidateUserLogin.UserLoginRequired();
if (!IsPostBack)
{
//on page load, show GroupGrid
BindGGrid();
}
}
protected void grdviewGroups_DataBound(object sender, EventArgs e)
{
}
//show GroupGrid
public void BindGGrid()
{
Groups gps = new Groups();
grdviewGroups.DataSource = gps.ShowAllGroups();
grdviewGroups.DataBind();
}
protected void grdviewGroups_RowCommand(object sender, GridViewCommandEventArgs e)
{
Groups gps = new Groups();
//int id = Convert.ToInt32(grdviewGroups.DataKeys[row.RowIndex].Value);
if (e.CommandName == "GroupCode")
{
Response.Redirect("AddEditGroups.aspx?ID=" + gps.Encryptid((e.CommandArgument.ToString())));
}
else if (e.CommandName == "GroupName")
{
Response.Redirect("AddEditGroups.aspx?ID=" + gps.Encryptid((e.CommandArgument.ToString())));
}
}
protected void grdviewGroups_SelectedIndexChanged(object sender, EventArgs e)
{
}
protected void imgdeleteGroup_Click(object sender, EventArgs e)
{
// to delete group data by groupid
string gpsid = string.Empty;
int id;
Groups gps = new Groups();
foreach (GridViewRow row in grdviewGroups.Rows)
{
CheckBox checkbox = (CheckBox)row.FindControl("chkGroups");
if (checkbox.Checked)
{
id = Convert.ToInt32(grdviewGroups.DataKeys[row.RowIndex].Value);
gpsid = gpsid + id + ",";
}
}
//string str1 = gpsid;
//gps.DeleteGroup(str1);
//grdviewGroups.DataSource = gps.ShowAllGroups();
//grdviewGroups.DataBind();
string str1 = gpsid;
int a=gps.DeleteGroup(str1);
if (a == 1)
{
lblshow.Text = "You can not delete this record because there is reference in database";
}
else
{
if (gpsid == "")
{
lblshow.Text = "Please select the record that you want to delete!";
}
else
{
lblshow.Text = "Record is deleted";
}
}
grdviewGroups.DataSource = gps.ShowAllGroups();
grdviewGroups.DataBind();
}
protected void imgAddGroup_Click(object sender, EventArgs e)
{
Response.Redirect("AddEditGroups.aspx");
}
protected void grdviewGroups_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
grdviewGroups.PageIndex = e.NewPageIndex;
BindGGrid();
}
在此先感謝
你在幾個不同的地方綁定網格。錯誤發生在哪裏？它是否僅在一次綁定調用或其中任何一箇中發生？你能跟蹤到達數據庫的實際查詢嗎？ – David 2011-02-04 12:41:26