SqlCeDataReader.GetString Method
Gets the value of the specified column as a string.
Namespace: System.Data.SqlServerCe
Assembly: System.Data.SqlServerCe (in System.Data.SqlServerCe.dll)
Syntax
'Declaration
<SecurityTreatAsSafeAttribute> _
<SecurityCriticalAttribute> _
Public Overrides Function GetString ( _
ordinal As Integer _
) As String
'Usage
Dim instance As SqlCeDataReader
Dim ordinal As Integer
Dim returnValue As String
returnValue = instance.GetString(ordinal)
[SecurityTreatAsSafeAttribute]
[SecurityCriticalAttribute]
public override string GetString(
int ordinal
)
[SecurityTreatAsSafeAttribute]
[SecurityCriticalAttribute]
public:
virtual String^ GetString(
int ordinal
) override
[<SecurityTreatAsSafeAttribute>]
[<SecurityCriticalAttribute>]
abstract GetString :
ordinal:int -> string
[<SecurityTreatAsSafeAttribute>]
[<SecurityCriticalAttribute>]
override GetString :
ordinal:int -> string
public override function GetString(
ordinal : int
) : String
Parameters
- ordinal
Type: System.Int32
The zero-based column ordinal.
Return Value
Type: System.String
The value of the specified column.
Implements
Exceptions
Exception | Condition |
---|---|
InvalidCastException | The specified cast is not valid. |
SqlNullValueException | The value is nulla null reference (Nothing in Visual Basic). |
InvalidOperationException | The operation is not valid. The SqlCeDataReader may be positioned after the last row in the result set. |
Remarks
No conversions are performed; therefore, the data retrieved must already be a string.
Call IsDBNull to check for null values before calling this method.