Re: converting String to uniqueidentifier
From: mikeb (mailbox.google_at_mailnull.com)
Date: 02/25/04
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Date: Tue, 24 Feb 2004 17:42:22 -0800
Sandra wrote:
> I am trying to convert a string into a uniqueidentifier by using the following code:
>
> string contrID = Request.Params["oId"]
> SqlGuid sqlID = SqlGuid.Parse(contrID)
>
> I am then putting sqlID into my SQL WHERE clause so it only pulls that record. I've double checked that the record I'm trying to pull is in the database. I am getting the error below. I don't understand what is causing it, Any Help is appreciated!!!!!!!
>
> ArgumentNull_String Parameter name: g
> 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.ArgumentNullException: ArgumentNull_String Parameter name: g
>
> Source Error:
>
> An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
>
> Stack Trace:
>
>
> [ArgumentNullException: ArgumentNull_String
> Parameter name: g]
> System.Guid..ctor(String g) +3415
> System.Data.SqlTypes.SqlGuid..ctor(String s) +33
> System.Data.SqlTypes.SqlGuid.Parse(String s) +19
> Contract_Contact.grid_data.GetDataset(String sortcolumn, ColumnSortDirection sortdirection)
> Contract_Contact.grid_data.Page_Load(Object sender, EventArgs e)
> System.Web.UI.Control.OnLoad(EventArgs e) +67
> System.Web.UI.Control.LoadRecursive() +35
> System.Web.UI.Page.ProcessRequestMain() +731
>
It's pretty much what the error message is telling you: contrID is null
- there's no string to parse into a GUID.
Are you sure you have the right params name ("oId")?
Are you sure it's in the request?
-- mikeb
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