Databases
StackOverflow2013
Postsdbo
POServer-side validation of a REQUIRED String Property in MVC2 Entity Framework 4 does not work
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POServer-side validation of a REQUIRED String Property in MVC2 Entity Framework 4 does not work
    primarykey
    data
    text
    <p>I'm trying to get server-side validation of an Entity Framework String Property to work. Other server-side validation such as data type validation and required dateTime and numeric EF properties are working. </p> <p>This in VS 2010, .Net 4.0, MVC2 + Cloud, ADO.Net Entity Framework.</p> <p>The String Property I am having issues with is mapped to a SQL 2008, Varchar(50) non-nullable column.</p> <p>When I try to post to my Create action with an empty string for this Property, I get the follwing error. </p> <blockquote> <p>Exception Details: System.Data.ConstraintException: This property cannot be set to a null value.</p> </blockquote> <p>When I post to the action with a blank space, I successfully get a required field validation message. </p> <p>I have tried using Data Annotations and ClientSideValidation but there seems to be issues with ClientSideValidation working on partial views and jquery dialogs.</p> <p>Here is the orginal autogenerated code from the entity framework.</p> <pre><code>[EdmScalarPropertyAttribute(EntityKeyProperty=false, IsNullable=false)] [DataMemberAttribute()] public global::System.String GradeTypeName { get { return GradeTypeName; } set { OnGradeTypeNameChanging(value); ReportPropertyChanging("GradeTypeName"); _GradeTypeName = StructuralObject.SetValidValue(value, false); ReportPropertyChanged("GradeTypeName"); OnGradeTypeNameChanged(); } } </code></pre> <p>Depending on the signature of the Action method (CREATE or EDIT), the exception can occur before stepping into the method or within the method when UpdateModel() is called. The inner exception is at the line below from the model.designer.cs file. </p> <pre><code>_GradeTypeName = StructuralObject.SetValidValue(value, false); </code></pre> <p>I have been able to reproduce this on a simple mvc2 web application.</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. UStereško
    1. USHackITMngr
    plurals
    1. This table or related slice is empty.
    1. PL
      singulars
      1. LTLinked
    2. PL
      singulars
      1. LTLinked
    3. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POServer-side validation of a REQUIRED String Property in MVC2 Entity Framework 4 does not work
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. POServer-side validation of a REQUIRED String Property in MVC2 Entity Framework 4 does not work
      1. USMonsignor
      1. VTFavorite
    3. VO
      singulars
      1. POServer-side validation of a REQUIRED String Property in MVC2 Entity Framework 4 does not work
      1. USjrob
      1. VTFavorite
    1. This table or related slice is empty.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload