ADO.NET :: Specified Cast Is Not Valid During Using LINQ?
Oct 28, 2010I am having problem, these are the errors:
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These are the codes:
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DataSource Controls :: LINQ VB.net Specified Cast Is Not Valid?
Jun 29, 2010just needing a 2nd set of eyes looking at this to make sure the error isn't something else other than my LINQ code here. Here's the function class itself:
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For some reason it's flagging the 2nd line in the GetJacketByPolicyID function saying the specified cast is not valid. So I'm guessing it's something I'm doing wrong. I'm sure the tblPolicy/tblPolicies class works right since I can create a new instance of a tblPolicy and set a few variables by hand and return it, so that's not it. I've also checked the datarow I'm fetching and there's no null values in the record, so that shouldn't be it either.
C# - LINQ Union With BIT Column Causing Specified Cast Is Not Valid Error?
Mar 8, 2011I have a complicated join between a few tables but I have managed to replicate the error using linqpad and the small tables below. There are references between the COLNAME column and the YAXIS column and also between COLNAME and XAXIS that is not explicitly defined.
The error is "Specified cast is not valid", which originally I wasted time thinking the problem was converting the data returned to my object in VS 2010, but the error also happens in linqpad with no defined object. It seems insane that a bit column would cause this problem. If I change the column type to a VARCHAR it works fine. If I run the generated SQL from linqpad or sql profiler that also returns fine.
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C# - "Specified Cast Is Not Valid" Error When Saving LINQ-To-SQL Entity?
Jan 26, 2011App Details:
C#, ASP.NET MVC, SQL Server 2008 ( Same version & SP level), Linq-To-SQL ORM
I'm trying to diagnose an exception I'm receiving:
"Specified cast is not valid."
at System.Data.Linq.IdentityManager.StandardIdentityManager.SingleKeyManager2.TryCreateKeyFromValues(Object[] values, V& v)
at System.Data.Linq.IdentityManager.StandardIdentityManager.IdentityCache2.Find(Object[] keyValues)
at System.Data.Linq.IdentityManager.StandardIdentityManager.Find(MetaType type, Object[] keyValues)
at System.Data.Linq.CommonDataServices.GetCachedObject(MetaType type, Object[] keyValues)
at System.Data.Linq.ChangeProcessor.GetOtherItem(MetaAssociation assoc, Object instance)
at System.Data.Linq.ChangeProcessor.BuildEdgeMaps()
at System.Data.Linq.ChangeProcessor.SubmitChanges(ConflictMode failureMode)
at System.Data.Linq.DataContext.SubmitChanges(ConflictMode failureMode)
at System.Data.Linq.DataContext.SubmitChanges()
at Repository.Save()
at etc....
The problem is that this is occurring only on our servers, not on our local development boxes. I've tracked it down to a single property we're modifying:
event.SalesForceId = "701Q0000000AOTIIA4";
If I comment out that line, everything works fine.
I've tried:
1 ) waxing all of the code on the server and redeploying. Same issue.
2 ) Pulling down a copy of the server DB and trying it locally. Works fine.
3 ) Trying another IIS environment we have setup on the same box. Same issue.
4 ) Physically comparing ( using AdeptSQL ) both local and remote schemas. No differences.
5 ) Verifying the datatypes of both columns ( local and remote ) are the same. Also, this column is a FK to another table. I verified that both are of the same data type, down to the collation.
The server is Windows Server 2008 and the local box is Windows 7 x64. Both have all important updates setup.
The only thing I can think of is perhaps since the database and web server are on different boxes that could be an issue? Otherwise, I'm completely stumped.
C# - Specified Cast Is Not Valid?
Mar 11, 2011At the moment I'm trying to keep a certain site (asp.net) alive long enough for its replacement to be build in php. However I don't know much about .net or asp.net.
We are getting this error:
Specified cast is not valid. Description: An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.InvalidCastException: Specified cast is not valid.
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ADO.NET :: Error: Specified Cast Is Not Valid?
Aug 18, 2010I've already checked the row returned by my sproc and all the fields match my OcItemConstraintDetails class.
Not sure why I am getting the error below :(Error: Specified cast is not valid.
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My code:
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SQL Server :: System.InvalidCastException: Specified Cast Is Not Valid?
Jul 25, 2010I've got a list of teams which seperate into different leagues. I'm trying to show the user the league that they are in and show it from where they are in the league. This is the error I'm recieving:Specified cast is not valid. 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.InvalidCastException: Specified cast is not valid.Source Error:
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Source File: E:WebSitesohuntControlsLeagueWidget.ascx.vb Line: 24 Stack Trace:
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This is my page code:
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Code-behind:
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C# - Specific Cast Is Not Valid While Retrieving Scope_identity?
Jun 12, 2010I am getting exception: "Specific cast is not valid", here is the code
con.Open();
string insertQuery = @"Insert into Tender (Name, Name1, Name2) values ('Val1','Val2','Val3');Select Scope_Identity();";
SqlCommand cmd = new SqlCommand(insertQuery, con);
cmd.ExecuteNonQuery();
tenderId = (int)cmd.ExecuteScalar();
Specified Cast Is Not Valid Error On Development But Not On Test Server?
Sep 1, 2010I have a .Net 2 solution with some asp classic pages.I get a specified cast is not valid error when I access the page on my local. Below is the vb function where I get the Error:
Public Function Retrieve(ByVal vntSeqId As String, ByRef vntPart As String, ByRef vntPartKey As String, ByRef vntEntDate As String _
, ByRef vntStatus As String, ByRef vntOrigGblId As String, ByRef vntOrigNetId As String, ByRef vntOrigName As String, ByRef vntOrigPhone As String _ [code]...
At first, I thought the problem is with the source code and we were thinking the source code we have is different with the ones deployed on test and prod servers. But when I tried to upload it on the test server, I don't get the specified cast is not valid error.
SQL Server :: Data Types Uniqueidentifier Specified Cast Is Not Valid?
Nov 16, 2010have a table that keeps track of customer data that is beyond the scope of the Membership Class, this table I am also using the Membership.CreateUser() generated user ID.When I use my INSERT statement however to create a new row in my table I keep getting the Specified cast is not valid error.This is my SQL Command (The ...refer to other fields)
Dim mySqlCommand As String = "INSERT INTO Customers (UserID, ...) VALUES (@UserID, ...)"
I send it to my Write_Database(mySqlCommand, Membership.GetUser(txtUserName.Text).ProviderUserKey, ...) function which then
I also tried sending he UserID as: CType(Membership.GetUser(txtUserName.Text).ProviderUserKey, SqlGuid)
Neither Works...both cause errors...My Write_Database Function is declared as follows:
Public Function Write_Database(ByVal MysqlQuery As String, ByVal UserID As System.Data.SqlTypes.SqlGuid, ...)
However Visual Studio shows that the error originates in the function calling code...
Forms Data Controls :: Specified Cast Is Not Valid.on Formview Checkbox
Aug 12, 2010There is select and update SQLs in sqldatasource and checkbox in formview which is 2way databinded to an sqlserver bit field type.
it always gives same error
Specified cast is not valid
I excpect nobody posts me an "eval" solution.because update is a need for checkboxes which are attached to a bit field.
a ready-to-use small sample project with DB I attached HERE
Specified cast is not valid.
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.InvalidCastException: Specified cast is not valid.
Source Error:
[Code]....
Security :: Specified Cast Is Not Valid - Custom Oledb Role Provider?
Feb 5, 2010I have a custom oledb role provider that pretty much a cust and past of:
[URL]
except I've used oledb instead of odbc. I'm connecting to an oracle database and the tables have been created with out any issues. now if I go into the Website Administration Tool and try to create a new role I get the error
"Specified cast is not valid."
I can create a role directly in the database (through TOAD) and the role will show up in the .NET WAT, so I know it can make the connection and read the info just fine. I just can't create or delete or modify a role without the above error.
I'm using C# in VS 2008 Pro.
My provider code is as follows:
[Code]....
ADO.NET :: LINQ And Cast Row To IEnumerable?
Apr 1, 2011table1 row = _db.table1.FirstOrDefault(r => r.ReferenceID == refNumber);
Is there anyway to cast row to IEnumerable?
((IEnumerable<table1>)row) - does not work
"Specified Cast Is Not Valid" Error Message When Deploy A Web Application
Feb 9, 2011we have created web application project and on local computer everyting works fine. after doing deployment on our production server we get a error below
Specified cast is not valid.
Description: An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.InvalidCastException: Specified cast is not valid.
C# - LinqTOsql Returning A "specified Cast Not Valid" Exception At Runtime?
Nov 16, 2010I have two linqTOsql entities that has a parent and child relationship, one to many. I'm running into an issue that when I retrieve the parent record, I am unable to loop through the related records in the child table.This code fails:
public string test()
{
string output;
[code]...
C# - Specified Cast Is Not Valid. Enum / Try Also Enum.Parse But Didnt Work?
Sep 28, 2010whats wrong with this code, i try also Enum.Parse but didnt work.
public enum RoleNames
{
Administrator,
[code]...
ADO.NET :: Cast Error When Inserting Record With Linq (to Sql)?
Aug 22, 2010I'm getting the following error message:
Unable to cast object of type 'System.Data.Linq.DataQuery`1[Username]' to type 'Username'.
I've been searching but can't find a solution. This particular table has 4 columns. The first column is the int indentifier. Column 2 is "username" (varchar50) and is the primary key. Column3 is "userID" (uniqueidentifier) and column 4 is "active" (varchar5)
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Unable To Cast A Partial Class Based On LINQ To SQL Object
Mar 28, 2011I have a database table called Animals which I drag on to my Linq to SQL DBML file.
This creates me a class called Animal.
I then create a class to extend it, like so:
public partial class Animal{
//my extra code here
}
But what I also want to do is have a class like this:
public class Zebra : Animal{
//even more extra code here
}
The trouble is I get an InvalidCastException from my repository, when I do this:
Animal a = dataContext.Animals.Where(c=>c.id.Equals(id)).SingleOrDefault();
return (Zebra)a;
I've stripped back my classes to the point where they're completely empty in an attempt to work why it doesn't work. To no avail.
This casting process did used to work in the non-LINQ-2-SQL project that I'm switching to MVC/LINQ.
DataSource Controls :: Unable To Cast Object Of Type 'System.Data.Linq.DataQuery?
Mar 31, 2010I wanted to delete the record from data but I receive this error "Unable to cast object of type 'System.Data.Linq.DataQuery`1[training_eval.Course]' to type 'training_eval.Course'.
Dim eval_sure = From ev In db.Evaluates Where ev.course_id = indexcourse Select ev.course_id
Dim del_course = From c In db.Courses Where c.Course_id = indexcourse
db.Courses.DeleteOnSubmit(del_course)
db.SubmitChanges()
DataSource Controls :: How To Cast Concrete Type Created In LINQ Query To The Corresponding Interface Type
May 3, 2010I have an Interface that has its concrete class defined via a factory. Because of this I found no way to use the Interface tpye directly in my LINQ quesry so I had to use the concrete class types to creat a generic list. The LINQ query works but after calling.ToList() on the LINQ query result I get a List(of MyConcreteClass), but I need a List(of IMyConcreteClass). I have tried everything I can find: .Cast, Ctype, implicit casting, etc. but I always get back one of the (2) messages (depending on if I attempt to cast)message:
"Unable to cast object of type 'System.Collections.Generic.List`1[MyConcreteClass]' to type 'System.Collections.Generic.IEnumerable`1[IMyConcreteClass]'."
...or
"Unable to cast object of type '<CastIterator>d__aa`1[IMyConcreteClass]' to type 'System.Collections.Generic.List`1[MyConcreteClass]'."
Here is the sample code:
[Code]....
Cast Ienumerable Into Specified Cast Using Cast?
May 1, 2010I have following code in my class file which returns me the Date field in format like 4/4/2010 12:00:00 AM from SQL SERVER
public IEnumerable Mthgetcomplaintdate()
{
var v = objderma.USP_Patient_Dermatology_Complaints_RepDate(PatientID); ;
return v as IEnumerable;
}
But on my aspx page i want to display only the Date part not time.One way is i will iterated throgh my dropdownlist which am binding with the above method and i convert it using Toshortdatestring() method.But i want to cast the whole Ienumerable result using some method? I have read about cast<> ,but could not understand how to implement it exactly.
Cast Something To A DateRangePicker?
Mar 2, 2011I have created a folder called "Controls" in my asp.net application. In that folder are user controls (1 being DateRangePicker.ascx for example). Now I am creating a class in my app code folder and I am trying to cast something to a DateRangePicker,
DateRangePicker drp = (CambitCMS.Controls.DateRangePicker)gvListing.Parent.Parent.FindControl("ucDateRangePicker");
And I am getting the following error:
Error 2 The type or namespace name 'Controls' does not exist in the namespace 'CambitCMS' (are you missing an assembly reference?)
How do I properly reference this user control in a class?
I want my "ListingsBasePage" class to reference my DateRangePicker usercontrol, but if I put a namespace around the whole user control code it breaks the user control, it says all the things like the textboxes, labels, etc dont exist in current context when a namespace is wrapped around the code.
Here is the start of the class "ListingsBasePage" where I am triyng to reference the usercontrol
using System;
using System.Data;
using System.Configuration;
using System.Linq;
using System.Web;
[code]...
How To Cast From Object To GUID
Mar 12, 2010How can I cast from object to GUID in asp.net???
View 4 RepliesADO.NET :: How To Cast DataTable To DataRow
Jan 5, 2011I m trying to cast DataTable.Rows to DataRow in VB but could not manage!
Here is the sample code:
[Code]....
Cast A String To A Name Of A Web Label?
Dec 8, 2010using vs2008 and building a web app. On a asp page called blackjack.aspx, I have four labels with id of lbBJTStatusP1 lbBJTStatusP2 lbBJTStatusP3 lbBJTStatusP4.I want to address those labels in a single sub by casting the casting two strings into the control name, so that string lbBJTStatusP & "1" would refer to lbBJTStatusP1.This is done on the code behind page. So far I have tried this but with no success. boxct refers to either "1" "2" "3" or "4".DirectCast(blackjack.Controls.Find("lbBJTStatusP" & boxct, True)(0), Label).BackColor = stoodcolor
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