ExpressionStore.GetExprID
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Use this method to translate the name of an expression into its corresponding expression ID.
Definition
Function GetExprID(strExprName As String) As Long
Parameters
strExprName
[in] A String that contains the expression name.
Return Values
If this method completes successfully, it returns a Long that contains the expression ID. On failure, the expression ID is set to EXPRID_INVALID (defined as -1).
Error Values
This method sets the Number property of the global Err object to S_OK (&H00000000) to indicate success and to either standard or custom COM error values to indicate failure. For more information about standard COM errors, see Standard COM Errors.
The following table shows the custom COM errors that this method can return.
| Constant | Value | Description |
| E_EXPR_BADCONNECTION | &H8110001F | Invalid connection |
| E_EXPR_BADEXPRNAME | &H81100003 | Invalid expression name, or expression name not found in store |
| E_EXPR_NOCONNECTIONSTRING | &H8110000D | No connection string specified |
Additional information may be available using the global Err object. In particular, the Description property may contain a text description of the error.
Remarks
Use the GetExprName method to translate the ID of an expression into its corresponding expression name.
Call the Connect method before calling the GetExprID method.
For more information about memory ownership issues related to COM property and method parameters, see Managing COM Parameter Memory.
Example
' lExpressionID is a long
' oExpressionStore is an ExpressionStore object connected to
' a valid expression store.
lExpressionID = oExpressionStore.GetExprID("MyExpression")