StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

POError when adding parameters to ADODB command in a .NET assembly
primarykey
Id
4818552
data
AcceptedAnswerId
4820690
AnswerCount
2
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2011-01-27T15:51:59.800
FavoriteCount
0
LastActivityDate
2011-02-20T04:55:43.293
LastEditDate
2011-02-20T04:55:43.293
LastEditorUserId
76337
OwnerUserId
232218
ParentId
0
PostTypeId
1
Score
2
ViewCount
2839
LastEditorDisplayName
text
Body
I have a .NET assembly that is being consumed by a classic ASP page. I've created a method that returns a ADODB recordset. In my ADODB command object I'm supplying parameters using the following format to a adCmdStoredProc CommandType property... <pre><code>With ADODBCmd .ActiveConnection = ADODBConn .Prepared = True .CommandType = CommandTypeEnum.adCmdStoredProc .NamedParameters = True .CommandText = Sql_GetMyBook .Parameters.Append(.CreateParameter("@book", DataTypeEnum.adChar, ParameterDirectionEnum.adParamInput, 50, MyBook)) End With </code></pre> I get a casting error ... <blockquote> System.Exception was unhandled Message=System.InvalidCastException: Unable to cast COM object of type 'System.__ComObject' to class type 'ADODB.InternalParameter'. Instances of types that represent COM components cannot be cast to types that do not represent COM components; however they can be cast to interfaces as long as the underlying COM component supports QueryInterface calls for the IID of the interface. </blockquote> at line: <pre><code>.Parameters.Append(.CreateParameter("@book", DataTypeEnum.adChar, ParameterDirectionEnum.adParamInput, 50, MyBook)) </code></pre> Any ideas? Stored Proc: <pre><code>ALTER PROCEDURE [dbo].[GetMybook] -- Add the parameters for the stored procedure here @book char(50) AS BEGIN -- SET NOCOUNT ON added to prevent extra result sets from -- interfering with SELECT statements. SET NOCOUNT ON; -- Insert statements for procedure here SELECT BookTitle, Author, PulishedDate FROM Library WHERE BookTitle=@book </code></pre>
Tags
<.net><asp-classic><assemblies><adodb><consumption>
Title
Error when adding parameters to ADODB command in a .NET assembly
singulars
PostAcceptedAnswerId
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
PostParentId
1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. USJohn Saunders
UserOwnerUserId
1. USihillVT
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
2. PO
 singulars
 PostTypePostTypeId
 PTAnswer
VotesPostIdCreationDate
1. VO
 singulars
 PostPostId
 POError when adding parameters to ADODB command in a .NET assembly
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
2. VO
 singulars
 PostPostId
 POError when adding parameters to ADODB command in a .NET assembly
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
CommentsPostId
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.