SqlParameterCollection Class
Represents a collection of parameters relevant to a SqlCommand as well as their respective mappings to columns in a DataSet. This class cannot be inherited.
For a list of all members of this type, see SqlParameterCollection Members.
System.Object
System.MarshalByRefObject
System.Data.SqlClient.SqlParameterCollection
[Visual Basic] NotInheritable Public Class SqlParameterCollection Inherits MarshalByRefObject Implements IDataParameterCollection, IList, ICollection, _ IEnumerable [C#] public sealed class SqlParameterCollection : MarshalByRefObject, IDataParameterCollection, IList, ICollection, IEnumerable [C++] public __gc __sealed class SqlParameterCollection : public MarshalByRefObject, IDataParameterCollection, IList, ICollection, IEnumerable [JScript] public class SqlParameterCollection extends MarshalByRefObject implements IDataParameterCollection, IList, ICollection, IEnumerable
Thread Safety
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
Remarks
The number of the parameters in the collection must be equal to the number of parameter placeholders within the command text, or SQL Server raises an error.
Example
[Visual Basic, C#, C++] The following example creates multiple instances of SqlParameter through the SqlParameterCollection collection within the SqlDataAdapter. These parameters are used to select data within the data source and place the data in the DataSet. This code assumes that a DataSet and a SqlDataAdapter have already been created with the appropriate schema, commands, and connection.
[Visual Basic] Public Sub AddSqlParameters() ' ... ' create myDataSet and myDataAdapter ' ... myDataAdapter.SelectCommand.Parameters.Add("@CategoryName", SqlDbType.VarChar, 80).Value = "toasters" myDataAdapter.SelectCommand.Parameters.Add("@SerialNum", SqlDbType.Int).Value = 239 myDataAdapter.Fill(myDataSet) End Sub 'AddSqlParameters [C#] public void AddSqlParameters() { // ... // create myDataSet and myDataAdapter // ... myDataAdapter.SelectCommand.Parameters.Add("@CategoryName", SqlDbType.VarChar, 80).Value = "toasters"; myDataAdapter.SelectCommand.Parameters.Add("@SerialNum", SqlDbType.Int).Value = 239; myDataAdapter.Fill(myDataSet); } [C++] public: void AddSqlParameters() { // ... // create myDataSet and myDataAdapter // ... myDataAdapter->SelectCommand->Parameters->Add(S"@CategoryName", SqlDbType::VarChar, 80)->Value = S"toasters"; myDataAdapter->SelectCommand->Parameters->Add(S"@SerialNum", SqlDbType::Int)->Value = __box(239); myDataAdapter->Fill(myDataSet); }
[JScript] No example is available for JScript. To view a Visual Basic, C#, or C++ example, click the Language Filter button
in the upper-left corner of the page.
Requirements
Namespace: System.Data.SqlClient
Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, .NET Compact Framework
Assembly: System.Data (in System.Data.dll)
See Also
SqlParameterCollection Members | System.Data.SqlClient Namespace