c# - KeyNotFound Exception when calling Html.ValidationSummary() dynamically through helper method -


I have a helpful method in my view that dynamically prepares the whole form. I would like to add a support as available in MVC RC2.

I use the code given below to present the verification summary field on the formation. 

  _viewPage.Html.EnableClientValidation (); MvcHtmlString validationSummary = _viewPage.Html.ValidationSummary ("There are errors on this form, please contact your administrator."); If (Validation Ms.! = Null & Verification. Ms. Torstring (!) = "") Response Write (Verification. Summary.ToString ());

When the code reaches this point, I get an error. 

  System.Collections.Generic.KeyNotFoundException User Code

Message = "The key given was not present in the dictionary." Source = "system" StackTrace: System.ThrowHelper.ThrowKeyNotFoundException (on System.Web.Mvc.Html.ValidationExtensions.ValidationSummary) System.Collections.Generic.SortedDictionary on 2.get_Item (TKey key) (HtmlHelper HtmlHelper, Boolean excludePropertyErrors, string message, IDictionary 2 htmlAttributes) on Fusion.UI.MvcWebUX.Helper.FormGenerator.GenerateFormValidation System.Web.Mvc.Html.ValidationExtensions.ValidationSummary (HtmlHelper HtmlHelper, string message, IDictionary`2 htmlAttributes) (on D) in the \ EBS \ Project.Fusion \ Fusion.UI.MvcWebUX \ Helper \ FormGenerator.cs: \ EBS \ Project.Fusion \ Fusion line Fusion.UI.MvcWebUX.Helper.FormGenerator.GenerateForm () at D. 88 .UI.MvcWebUX \ Helpper \ FormGenerator.cs: \ EBS \ Project.Fusion \ Fusion.UI.MvcWebUX \ h Elpr \ FormGenerator.cs: line Fusion.UI.MvcWebUX.Helper.FormGenerator.RenderForm (ViewPage viewPage) at D 70: ASP.views_shared_autoview_aspx line .__ 60 RenderContent2 (HtmlTextWriter __w, control parameterContainer) d: \ EBS \ Project.Fusion \ Fusion.UI.MvcWebUX \ Views \ shared \ AutoView.aspx: line 7 System.Web.UI.Control.RenderChildrenInternal (HtmlTextWriter writer, ICollection children) .Web.UI.Control.RenderChildren (HtmlTextWriter writer system ) System.Web.UI.Control.Render (HtmlTextWriter writer) on System.Web.UI.Control.RenderControlInternal (HtmlTextWriter writer, ControlAdapter adapter) on System.Web.UI. Control.RenderControl (HtmlTextWriter writer, ControlAdapter adapter) System.Web.UI.Control.RenderControl (HtmlTextWriter writer ASP.views_shared_fusion_master .__ Render__control1) (HtmlTextWriter __w, control parameterContainer) than in d: \ EBS \ Project.Fusion \ Fusion .UI .MvcWebUX \ Views \ shared \ Fusion.Master: line System.Web.UI.Control.RenderChildrenInternal at 74 (HtmlTextWriter writer, ICollection children) System.Web.UI.Control.RenderChildren (HtmlTextWriter writer System.Web.UI ) on .Control.Rend er (HtmlTextWriter writer) System.Web.UI.Control.RenderControlInternal (HtmlTextWriter writer System.Web.UI.Control.RenderControl on System.Web.UI.Control.RenderControl, ControlAdapter adapter) (HtmlTextWriter writer , ControlAdapter Optimizer) (HtmlTextWriter author) System.Web.UI.Co On .Web.Mvc.ViewPage.Render (ntrol.RenderChildren (HtmlTextWriter writer) on System.Web.UI.Control.RenderChildrenInternal (HtmlTextWriter writer, ICollection children) on System.Web.UI.Page.Render (HtmlTextWriter writer on the system) HtmlTextWriter writer) System.Web.UI.Control.RenderControlInternal (HtmlTextWriter writer System.Web.UI.Control.RenderControl on SystemkWeb, ControlAdapter adapter) (HtmlTextWriter writer, ControlAdapter adapter) on .UI.Control.RenderControl (HtmlTextWriter writer ) System.Web.UI.Page.ProcessRequestMain (Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) InnerException:

I h awen been struggling with this for a few hours. Can someone help me solve this and tells me why this is happening.

I have come here for a solution twice, so I will also answer with one thing which This may be due to it.

In MVC 2 RC (I believe, the version given with the 2010 RC), you EnableClientValidation : 

  & lt ;% - This is the right way to call these two methods -%> & Lt;% Html Validity beautiful (); & Gt%; & Lt;% Html Enabledclaimitivity (); & Gt%;

The reason for the exception would be: 

  & lt;% - The exception to the side effect of calling ECV before -% & gt; & Lt;% Html Enabledclaimitivity (); & Gt%; & Lt;% Html Validity beautiful (); & Gt%;

Some such calls are quite dirty to crop side effects from called conandicated method calls. Little reminds me of the global variable.


Comments

Post a Comment

Popular posts from this blog

sql - dynamically varied number of conditions in the 'where' statement using LINQ -

I am using my first project LINQ (in mvc), so maybe there's something very simple that I remember. However, a day of searching and experimenting does not work, so it works. I am trying to write a LINQ query (Linux to SQL) in which in many cases where the statement is different from an OR or an AND. We do not know how many conditions are going in the query till runtime. This search is for filter control, where the user can choose multiple criteria for filtering. Select from table where table.col = 1 or table.col = 2 or table.col = 7 .... 'Other number of conditions Before I just create the SQL query as a string, while looping over all the situations. However, it seems that there should be a good way to do this in LINQ. I tried to use Expression trees, but they had a second thought for this moment on my head, where the lambda function was to be executed inside the statement such as: values ​​for matchingRows = matchingRows for each value Where (function (row) row.c...
Read more

asp.net mvc - Dynamically Generated Ajax.BeginForm -

I have a problem with ASP.NET MVC Ajax forms. I generate many Ajax form in a table such as: & Lt; Input type = "submit" name = "activity" value = "add activity" / & gt; & Lt;%}% & gt; & Lt; / TD & gt; & Lt; / TR & gt; & Lt;%}% & gt; So far so good. When I post one of those forms, it gives a partial view in a div, and in this new partial view a new Ajax Beginnform (which is not in Genesis form) This second Ajax Beginnorf is exactly like the ones I got on the table, but when I post it, I do not get the "Ajax Post", but a normal post that sends me to a new page, I do not know whether the two Ajax forms What is the reason for the difference between, why is it the "dynamically generated" Ajax form behaves like a normal HTML form? By the way, I know that I can do it in different ways using javascript, but I would like to understand whether it can only be done using MVC helplars and Ajax lib...
Read more

Debug on symbian -

I am using trk for phone debug This works well for the Holorld project But when I start the project in phone debug mode 1) the load failed 2) TrkProtocolPlugin: to target the specified file Failure (please verify If any body understands what problem I am experiencing, then this problem helps me Pre-release If the application has the privileges assigned (with the appropriate certificate) itemprop = "text" > In your case, I will check: / li> If there is no conflict of application ID with any other application of device If there are problematic commands in the installation package (for example copy copy for non-accessible directories)
Read more