SQL Server :: Data Types Uniqueidentifier Specified Cast Is Not Valid?

Nov 16, 2010 01:09 AM

have 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...

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Forms Data Controls :: Server Error In '/LaundrySystem' Application - Object Cannot Be Cast From DBNull To Other Types

Oct 26, 2009 02:12 PM

Server Error in '/LaundrySystem' Application. Object cannot be cast from DBNull to other types. 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: Object cannot be cast from DBNull to other types.

Source Error:

[Code]....

<%
@ Page
Language="VB"
AutoEventWireup="false"
CodeFile="Status.aspx.vb"
Inherits="Status"
%>.......

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SQL Server :: Object Cannot Be Cast From DBNull To Other Types?

Sep 14, 2010 09:23 AM

Case "System.Int32"
Return Convert.ToInt32(a) + Convert.ToInt32(b)

Object cannot be cast from DBNull to other types

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SQL Server :: System.InvalidCastException: Specified Cast Is Not Valid?

Jul 25, 2010 04:52 PM

I'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:

[Code]....

Source File: E:WebSitesohuntControlsLeagueWidget.ascx.vb Line: 24 Stack Trace:

[Code]....

This is my page code:

[Code]....

Code-behind:

[Code]....

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Specified Cast Is Not Valid Error On Development But Not On Test Server?

Sep 1 10 at 2:43

I 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.

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Forms Data Controls :: Object Cannot Be Cast From DBNull To Other Types

Sep 09, 2010 09:07 AM

Object cannot be cast from DBNull to other types. 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: Object cannot be cast from DBNull to other types. Source Error:

[Code]....

Line 292:
Line 293: If DataBinder.Eval(e.Row.DataItem, "Casette") IsNot Nothing Then
Line 294: stcassette += Convert.ToDecimal(DataBinder.Eval(e.Row.DataItem, "Casette"))
Line 295: End If
Line 296:

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Forms Data Controls :: Object Cannot Be Cast From DBNull To Other Types?

Mar 10, 2010 03:06 AM

There are two dropdowns for date (Fromdate and Todate) in my webpage and by default when the page loads for the first time the dropdowns loads with the last date (currentdate), if I select some previous date in Fromdate dropdown and reload the page then it displays runtime i.e.

Object cannot be cast from DBNull to other types.

Following code is written under GridView RowDataBound Event.

[Code]....

The error found at following line:

less7daysTotal += Convert.ToInt32(DataBinder.Eval(e.Row.DataItem, "less7days"))

If I comment this line then the error moves to next line till following line.

grt28daysTotal += Convert.ToInt32(DataBinder.Eval(e.Row.DataItem, "grt28days"))

I fruther want to inform that some columns in the grid are showing 0 if there is no record but I replaced 0 to - then some 0s replaced and some not. What is the reason?

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Forms Data Controls :: Specified Cast Is Not Valid.on Formview Checkbox

Aug 12, 2010 08:34 PM

There 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]....

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Specified Cast Is Not Valid?

Feb 23, 2009 11:04 PM

I am using Linq to Sql queries

My code is as follows

Dim q =
From p
In _Context.categories _
Where p.parentid = 0 _
Order
By p.title _Select p
GridView1.DataSource = q
GridView1.DataBind()
What is wrong with my code..

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Why Specified Cast Is Not Valid

May 28, 2009 08:50 AM

I have the following code.

if (((sm.Ve)r.Cr.Ve).He ==
true )
{
Redirect
( "ShoppingCart.aspx" ) ;
}

I get an error saying that the specified cast is not valid.

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C# - Specified Cast Is Not Valid?

Mar 11 at 11:15

At 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.

[Code]....

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MVC :: Specified Cast Is Not Valid?

Sep 29, 2009 12:23 PM

I get this error "Specified cast is not valid." on my Views when trying to map my object under MVC.The table I use is "Order Details" from Northwind database.Views

<%@ Page Language="VB" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage(Of IEnumerable (Of AjaxMVC.OrderDetail))" %>
<asp:Content ID="Content1" ContentPlaceHolderID="MainContent" runat="server">
<h2>Index</h2>
<table>
[code]...

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ADO.NET :: Error: Object Cannot Be Cast From DBNull To Other Types?

Aug 02, 2010 01:30 PM

here's my code...

select SUM(PETTYAMOUNT) AS tot FROM FINPETTY WHERE PETTYAMOUNT IS NOT NULL AND CENTER = '1'
if (drReadera.HasRows)
{
double totamta = Convert.ToDouble(drReadera["TOTALSUMA"]);
Label2.Text = String.Format("{0:N2}", totamta);
}

note: some of the pettyamount is null that's why i've got an error in page.

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Error: Object Cannot Be Cast From DBNull To Other Types?

Oct 31, 2010 06:47 AM

here's my error...

Exception Details: System.InvalidCastException: Object cannot be cast from DBNull to other types.

here's my code.

double totald = Convert.ToDouble(drReaderdeduc["TAMT"]);
totaldeduc.Text = String.Format("{0:N2}", totald);

the problem is the query output is null but i convert.todouble so got an error... what is the best solution if the record is null?

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ADO.NET :: Specified Cast Is Not Valid During Using LINQ?

Oct 28, 2010 01:27 PM

I am having problem, these are the errors:

[Code]....

These are the codes:

[Code]....

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ADO.NET :: Error: Specified Cast Is Not Valid?

Aug 18, 2010 04:07 PM

I'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.

[Code]....

My code:

[Code]....

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Getting Error Object Cannot Be Cast From Dbnull To Other Types / How To Solve

Apr 9, 2009, 02:21

in this line m getting error..m using c#.

userType = Convert.ToInt16(oCmd.Parameters["SUSER_TYPE"].Value);

here i want to check != System.DBNull.Value

what to write for this...

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DataSource Controls :: Object Cannot Be Cast From DBNull To Other Types?

Jul 10, 2007 01:15 PM

how to avoid this error when nothing returns (I tried != ""; != string.Empty but It does not solve)

Object cannot be cast from DBNull to other types

while (dr.Read())
{
year = Convert.ToInt32(dr[0]);
}

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DataSource Controls :: Object Can Not Be Cast From Dbnull To The Other Types?

May 24, 2010 07:02 AM

I have a webpage, i have a usercontrol in it , its name ispersonal1, i have tow Radiobutton in this usercontrol, the id of one of them ismale and the other one is female, it is obviously that each time we fill one of these radiobuttons and the other one will be null,in my database the type of these fields are bit , and they have allow null, i defined a property for my usercontrol like this:

public bool male
{
get

[code]...

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Web Forms :: Specified Cast Is Not Valid On Insert?

Oct 07, 2009 11:12 PM

I have two tables, blogs and members. Both have ID fields that are primary keys. Blogs also has a nvarchar(25) field called filenum. Members has a nvarchar(25) field called file2. I have a listview control that has a linqdatasource called ldsblogs. In order to get a dynamic query that needed data from both tables to work right on another page, in the dbml I created an association from members->File2 to Blogs->filenum. It's this asociation that's causing the problem, because if I remove it this page works fine. If I have it in place, I get a System.InvalidCastException: Specified cast is not valid error. I can't remove the association though because of the other page.

I tried to use a sqldatasource hoping it would ignore the association, but I get the same problem. Again, if I remove the association the problem goes away. How can I fix this? Or is there a workaround?

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DataSource Controls :: Linq - Specified Cast Is Not Valid?

Feb 21, 2008 01:28 PM

I am having problems running what seems like a simple bit of LINQ!

This is the piece of code:

public static void AddNewGuest(string GuestName,
string AssociatedLogin, int GroupId)
{
DataClassesDataContext DB = new DataClassesDataContext();
DB.Guests.InsertOnSubmit(new Guest
{
Name = GuestName,
AssociatedUserName = AssociatedLogin,

[Code].....

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DataSource Controls :: LINQ VB.net Specified Cast Is Not Valid?

Jun 29, 2010 04:39 PM

just 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:

[Code]....

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.

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AJAX :: Sys.WebForms.PageRequestManagerServerErrorException - Specified Cast Is Not Valid?

Feb 15, 2008 05:50 PM

I'm getting the error in the subject whenever I run my application. I think that it may be related to this: [URL] and since I have <compilation debug="true" />, I think setting that to false may aid not getting this, as is what it seems as if I read. So, Is that correct, or is this related to something else?

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Web Forms :: Specified Cast Is Not Valid In CheckBox Control?

Oct 23, 2009 08:29 PM

Here's my CheckBox control bind to a SqlDataSouce control field. why I get the error?

[Code]....

And here's my 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.

Source Error:

[Code]....

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C# - Specific Cast Is Not Valid While Retrieving Scope_identity?

Jun 12 10 at 6:34

I 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();

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Visual Studio :: ExecuteScalar Gets Specified Cast Is Not Valid Error?

Sep 16, 2004 10:32 PM

I just installed the VisualWebDeveloper 2005 Express Beta and am writing a test application. One problem I ran into is with a library that I wrote in the previous ASP.Net version and works well. However, I am getting an error when I run it under ASP.Net 2.0. Here's the code of the function:

[Code]....

And here's the error that I get when this function is called: Exception Details:System.InvalidCastException: Specified cast is not valid. Source Error: Line 129: } Line 130: oConn.Open();Line 131: nResult = (int)oCmd.ExecuteScalar(); Line 132: oConn.Close(); Line 133: return nResult; When I check my database, the stored procedure or query that was executed has run successfully and the changes show up in the tables. This worked without problem in pervious ASP.Net versions, but for some reason it's a problem in 2.0. If anyone has any ideas on what's wrong,

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C# - LINQ Union With BIT Column Causing Specified Cast Is Not Valid Error?

Mar 8 at 6:38

I 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.

[Code]....

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DataSource Controls :: How To Convert Object Into Integer / Specified Cast Is Not Valid

Nov 16, 2009 05:05 AM

how to convert object into integer?

int result

SqlCommand cmd = new SqlCommand("here i wrote one query to retrive id which is a integer", con);
SqlDataReader rdr = cmd.ExecuteReader();
while (rdr.Read())
{

which one is correct?

result = Int32.Parse(rdr[0]);
result = Convert.ToInt32(rdr.GetValue(0));
result = Convert.ToInt32(rdr[0]);
// result = (int)rdr[0];
}

i am getting errors as :System.InvalidCastException: Specified cast is not valid.

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Security :: Specified Cast Is Not Valid - Custom Oledb Role Provider?

Feb 05, 2010 04:33 PM

I 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]....

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SQL Server :: Implicit Conversion From Data Type Sql_variant To Uniqueidentifier Is Not Allowed?

Dec 02, 2010 03:48 PM

Page1 contains GridView1 which displays info from Table1.GridView1 contains a CommandButton which, when clicked inserts the values of all columns, plus a calculated value which goes into an extra column into Table2 handled in the RowCommand event handler of GridView1.Page2 contains GridView2 which displays info from Table2.GridView2 allows the user to alter the value of one of the columns in Table2 using the standard Edit/Update link.All this worked well until...I added UserId and SessionId fields to Table2 (uniqueidentifier and varchar(MAX) respectively,I added the following code to Page1 Code Behind to insert these values from the RowCommand handler:

[Code]....

All of this works beautifully. But... I then added this code to GridView2's RowUpdating event handler:

[Code]....

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Error - "Object Cannot Be Cast From DBNull To Other Types."

Jul 24, 2009 10:12 AM

I have some c# code that opens an excel doc and reads the data and puts it into a dataset. The excel has 2 columns, a name column and a date column.

Here is the code I am using to query the excel file, then create a dataset...

[Code]....

on DateTime jTTransDate = Convert.ToDateTime(row[1]); I get the following error

"Object cannot be cast from DBNull to other types."

It finds the data in the TranName column, but it seems to miss the data in the TranDate column.

The excel file looks like this...

TranName
TranDate
Bingo Reward
26/06/2008
WinkBingo
25/06/2008
Playtech
19/06/2008

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"Specified Cast Is Not Valid" Error Message When Deploy A Web Application

Feb 09, 2011 05:41 AM

we 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.

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C# - "Specified Cast Is Not Valid" Error When Saving LINQ-To-SQL Entity?

Jan 26 at 4:14

App 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.

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Perfect Linq-query With This Error: "Specified Cast Is Not Valid"?

Nov 06, 2008 09:58 AM

I got this LINQ-query on my page, and it all looks perfect, but I get this error:

Specified cast is not valid!

[Code]....

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C# - LinqTOsql Returning A "specified Cast Not Valid" Exception At Runtime?

Nov 16 10 at 22:42

I 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]...

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C# - Specified Cast Is Not Valid. Enum / Try Also Enum.Parse But Didnt Work?

Sep 28 10 at 21:30

whats wrong with this code, i try also Enum.Parse but didnt work.

public enum RoleNames
{
Administrator,

[code]...

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Cast From Type DBNull To Type String Is Not Valid?

Aug 21, 2009 02:36 PM

In vb.net using sql to escape this error "Cast from type DBNull to type String is not valid"

I use "ISNULL(E_ID,'') AS E_ID" in a sql statement

but this will not work when select data from an access database. Is there a similiar command I can enter in vb.net to stop this error message when selecting from an access database.

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SQL Server :: Uniqueidentifier Is Incompatible With Int '?

Aug 14, 2010 01:08 PM

I'm using a stored procedure to dump some data into a sql 2008 db. The sp calls a couple of other sp's and it is one of these that is throwing the error 'Operand type clash: uniqueidentifier is incompatible with int'I've stepped through the sp in enterprised studio and entered the values mannually and the last table updates as desired.I've also stepped through the aspx page and all values are passed in ok.

[CODE]...

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SQL Server :: How To Insert GUID Type Value Into Uniqueidentifier Field Using Vb.net

Dec 14, 2010 04:42 PM

I am workining in vb.net and sql. In DB have a uniqueidentifier field and want to insert in it,

When try to send data, some thing parameter: ByVal value as GUID

In the query : '"& Value &"' then errors occurs " Operator & not define or supporting and System.GUID "

If do like that : '"& CAST(Value as uniqueidentifier) &"' then Says CAST undefined same with Convert.

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SQL Server :: Conversion Failed When Converting From A Character String To Uniqueidentifier

Nov 27, 2010 07:39 AM

how I can get around the following error with the following code?

[Code]....

Error: Msg 8169, Level 16, State 2, Line 1 Conversion failed when converting from a character string to uniqueidentifier. As you can probably tell, the datatypes are: m.UserId = uniqueidentifier l.System_User_ID = varchar(256) I was hoping the casting of one to the other would solve the issue, but it doesn't. How can I re-code this? I see from other forums it would probably be best to set all these fields to uniqueidentifier, but would prefer not to at this stage as it will involve changing quite a bit throughout the whole site!

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