عندى مشكلة كود تقرير مشتريات خلال فترة فى مشروع asp core و مرفق صور للكود و صور للفيو الخاصة مقسمة على اكتر من صورة
و يظهر لي رسالة خطأ
An unhandled exception occurred while processing the request.
NullReferenceException: Object reference not set to an instance of an object.
AspNetCore.Views_Reports_reportPurchaseDate.<ExecuteAsync>b__13_0() in reportPurchaseDate.cshtml, line 73
Stack
Query
Cookies
Headers
Routing
NullReferenceException: Object reference not set to an instance of an object.
AspNetCore.Views_Reports_reportPurchaseDate.<ExecuteAsync>b__13_0() in reportPurchaseDate.cshtml
+
@item.products.ProductName
Microsoft.AspNetCore.Razor.Runtime.TagHelpers.TagHelperExecutionContext.GetChildContentAsync(bool useCachedResult, HtmlEncoder encoder)
Microsoft.AspNetCore.Mvc.TagHelpers.RenderAtEndOfFormTagHelper.ProcessAsync(TagHelperContext context, TagHelperOutput output)
Microsoft.AspNetCore.Razor.Runtime.TagHelpers.TagHelperRunner.<RunAsync>g__Awaited|0_0(Task task, TagHelperExecutionContext executionContext, int i, int count)
AspNetCore.Views_Reports_reportPurchaseDate.ExecuteAsync() in reportPurchaseDate.cshtml