Server Error in '/store2' Application.

Argument 'Expression' is not a valid value.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.ArgumentException: Argument 'Expression' is not a valid value.

Source Error:


Line 77: <%end if%>
Line 78: <% if r("Discount")>0 then %>
Line 79: <b>Giá bìa</b>: <STRIKE> <span style="font-weight:bold"><%=Format(r("SalePrice"),"###,###,###,###")%> đ</span></STRIKE><b> (-<%=r("Discount")%>%)</b><br />
Line 80: <% End if%>
Line 81:

Source File: D:\WebsiteMK\mk.net\store2\View.aspx Line: 79

Stack Trace:


[ArgumentException: Argument 'Expression' is not a valid value.]
   Microsoft.VisualBasic.Strings.Format(Object Expression, String Style) +768
   ASP.index_aspx.__Render__control1(HtmlTextWriter __w, Control parameterContainer) in D:\WebsiteMK\mk.net\store2\View.aspx:79
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +268
   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +13
   System.Web.UI.Page.Render(HtmlTextWriter writer) +29
   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +66
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +100
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1303

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.3062.0