我在我的web應用程序上收到了一個HttpException,我無法修復。我使用的是.NET WebForms,Entity Framework和Identity Framework。在這裏,當我運行的頁面出現錯誤的堆棧跟蹤:[HttpException(0x80004005):無法加載類型'Scheduler.Models.PatientModel.Patient'。]
[HttpException (0x80004005): Could not load type 'Scheduler.Models.PatientModel.Patient'.]
System.Web.Compilation.BuildManager.GetType(String typeName, Boolean throwOnError, Boolean ignoreCase) +9898205
System.Web.UI.WebControls.ModelDataSourceView.get_ModelType() +62
System.Web.UI.WebControls.ModelDataSourceView.EvaluateSelectMethodParameters(DataSourceSelectArguments arguments, ModelDataSourceMethod method, Boolean isAsyncSelect, DataSourceSelectResultProcessingOptions& selectResultProcessingOptions) +115
System.Web.UI.WebControls.ModelDataSourceView.EvaluateSelectMethodParameters(DataSourceSelectArguments arguments, DataSourceSelectResultProcessingOptions& selectResultProcessingOptions) +17
System.Web.UI.WebControls.ModelDataSourceView.GetSelectMethodResult(DataSourceSelectArguments arguments) +62
System.Web.UI.WebControls.ModelDataSourceView.ExecuteSelect(DataSourceSelectArguments arguments) +15
System.Web.UI.DataSourceView.Select(DataSourceSelectArguments arguments, DataSourceViewSelectCallback callback) +22
System.Web.UI.WebControls.ModelDataSourceView.Select(DataSourceSelectArguments arguments, DataSourceViewSelectCallback callback) +80
System.Web.UI.WebControls.DataBoundControl.PerformSelect() +143
System.Web.UI.WebControls.BaseDataBoundControl.DataBind() +74
System.Web.UI.WebControls.GridView.DataBind() +9
System.Web.UI.WebControls.BaseDataBoundControl.EnsureDataBound() +114
System.Web.UI.WebControls.CompositeDataBoundControl.CreateChildControls() +75
System.Web.UI.Control.EnsureChildControls() +92
System.Web.UI.Control.PreRenderRecursiveInternal() +42
System.Web.UI.Control.PreRenderRecursiveInternal() +160
System.Web.UI.Control.PreRenderRecursiveInternal() +160
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +4775
它發生時,我嘗試加載具有此標記在aspx文件的Patients.aspx頁:
<form id="form1" runat="server">
<div>
<asp:GridView ID="patientsGridView" runat="server" ItemType="Scheduler.Models.PatientModel.Patient" DataKeyNames="PatientID"
SelectMethod="patientsGridView_GetData" AutoGenerateColumns="false">
<Columns>
<asp:DynamicField DataField="LastName" />
<asp:DynamicField DataField="FirstName" />
<asp:DynamicField DataField="NickName" />
<asp:DynamicField DataField="PhoneNumber" />
</Columns>
</asp:GridView>
</div>
</form>
該aspx頁面的代碼如下:
public partial class Patients : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
public IQueryable<PatientModel.Patient> patientsGridView_GetData()
{
ApplicationDbContext db = new ApplicationDbContext();
var query = db.Patients.Where(p => p.Doctor.Id == User.Identity.GetUserId());
return query;
}
}
有關如何解決該異常的任何想法?