Convert Function Query Error

I am in the middle of creating an editable DatGrid:
Sub AccessoryGrid_EditCommand(source As Object, e As MxDataGridCommandEventArgs)
AccessoryGrid.EditItemIndex = e.Item.ItemIndex
End Sub
Sub AccessoryGrid_BeforeUpdate(source As Object, e As MxDataGridUpdateEventArgs)
e.NewValues.Add("@.AccessoryID",AccessoryGrid.DataSource.DataSource.Tables(0).Rows(e.Item.DataSetIndex)("AccessoryID"))
e.NewValues.Add("@.AccessoryName", CType(e.Item.Cells(1).Controls(0),TextBox).Text)
e.NewValues.Add("@.AccessoryPrice", CType(e.Item.Cells(2).Controls(0),TextBox).Text)
e.NewValues.Add("@.AccessorySold", CType(e.Item.Cells(3).Controls(0),TextBox).Text)
e.NewValues.Add("@.AccessoryDesc", CType(e.Item.Cells(4).Controls(0),TextBox).Text)
e.NewValues.Add("@.AccessoryImage", CType(e.Item.Cells(5).Controls(0),TextBox).Text)
End Sub
For some reason, I get an error message like this:

Server Error in '/' Application.

Disallowedimplicit conversion from data type nvarchar to data type smallmoney,table 'cardb.dbo.accessories', column 'AccessoryPrice'. Use the CONVERTfunction to run this query.

Description:Anunhandled exception occurred during the execution of the current webrequest. Please review the stack trace for more information about theerror and where it originated in the code.
Exception Details:System.Data.SqlClient.SqlException:Disallowed implicit conversion from data type nvarchar to data typesmallmoney, table 'cardb.dbo.accessories', column 'AccessoryPrice'. Usethe CONVERT function to run this query.
Source Error:

An unhandled exception was generated during the execution of thecurrent web request. Information regarding the origin and location ofthe exception can be identified using the exception stack trace below.

Stack Trace:

[SqlException: Disallowed implicit conversion from data type nvarchar to data type smallmoney, table 'cardb.dbo.accessories', column 'AccessoryPrice'. Use the CONVERT function to run this query.]
 System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream) +723
 System.Data.SqlClient.SqlCommand.ExecuteNonQuery() +194
 Microsoft.Saturn.Framework.Web.UI.SqlDataSourceControl.PerformSqlCommand(SqlCommand command) +82
 Microsoft.Saturn.Framework.Web.UI.SqlDataSourceControl.Update(String listName, IDictionary selectionFilters, IDictionary newValues) +114
 Microsoft.Saturn.Framework.Web.UI.MxDataGrid.OnUpdateCommand(MxDataGridUpdateEventArgs e) +869
 Microsoft.Saturn.Framework.Web.UI.MxDataGrid.OnBubbleEvent(Object source, EventArgs e) +546
 System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +26
 Microsoft.Saturn.Framework.Web.UI.MxDataGridItem.OnBubbleEvent(Object source, EventArgs e) +86
 System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +26
 System.Web.UI.WebControls.Button.OnCommand(CommandEventArgs e) +95
 System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +115
 System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +18
 System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +33
 System.Web.UI.Page.ProcessRequestMain() +1277

My main question is, how can I convert my column 'AccessoryPrice' to smallmoney?
I have been trying to get rid of this error by trying to change thefield type within my database with no success, I keep on getting thesame error either way.
I would be very greatful if anybody can help me.I'm also having this error. Any ideas?
|||Well, we'd need to see the query to give you the exact code toexplicitly convert the data. But check out the topic in BooksOnline:CAST and Convert. The code would like something like one of these:

SELECT CAST(myNVarcharColumn AS SmallMoney) AS myNVarcharColumn

or

SELECT CONVERT(smallmoney, myNVarcharColumn) AS myNVarcharColumn