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OleDbCommand.CommandType Property

  • Reference

Definition

Namespace:
System.Data.OleDb
Assembly:
System.Data.OleDb.dll
Assembly:
System.Data.dll
Package:
System.Data.OleDb v8.0.1
Package:
System.Data.OleDb v9.0.0-rc.2.24473.5
Source:
OleDbCommand.cs
Source:
OleDbCommand.cs

Gets or sets a value that indicates how the CommandText property is interpreted.

public:
 virtual property System::Data::CommandType CommandType { System::Data::CommandType get(); void set(System::Data::CommandType value); };
public:
 property System::Data::CommandType CommandType { System::Data::CommandType get(); void set(System::Data::CommandType value); };
public override System.Data.CommandType CommandType { get; set; }
[System.Data.DataSysDescription("DbCommand_CommandType")]
public System.Data.CommandType CommandType { get; set; }
member this.CommandType : System.Data.CommandType with get, set
[<System.Data.DataSysDescription("DbCommand_CommandType")>]
member this.CommandType : System.Data.CommandType with get, set
Public Overrides Property CommandType As CommandType
Public Property CommandType As CommandType

Property Value

CommandType

One of the CommandType values. The default is Text.

Implements

CommandType
Attributes
DataSysDescriptionAttribute

Exceptions

ArgumentException

The value was not a valid CommandType.

Remarks

When you set the CommandType property to StoredProcedure, you should set the CommandText property to the name of the stored procedure. The command executes this stored procedure when you call one of the Execute methods.

The Connection, CommandType and CommandText properties cannot be set if the current connection is performing an execute or fetch operation.

The OLE DB .NET Provider does not support named parameters for passing parameters to an SQL statement or a stored procedure called by an OleDbCommand when CommandType is set to Text. In this case, the question mark (?) placeholder must be used. For example:

SELECT * FROM Customers WHERE CustomerID = ?

Therefore, the order in which OleDbParameter objects are added to the OleDbParameterCollection must directly correspond to the position of the question mark placeholder for the parameter. For more information, see Configuring Parameters and Parameter Data Types.

Applies to

See also