UniParameter Class

In This Topic

Represents a parameter to a UniCommand, and optionally, its mapping to System.Data.DataSet columns.

Syntax

Visual Basic
C#

'Declaration
 
Public Class UniParameter 
   Inherits Devart.Common.DbParameterBase
   Implements System.Data.IDataParameter, System.Data.IDbDataParameter, System.ICloneable

public class UniParameter : Devart.Common.DbParameterBase, System.Data.IDataParameter, System.Data.IDbDataParameter, System.ICloneable

Remarks

Parameter names are not case-sensitive.

Refer to article Using Parameters in Universal .NET to obtain detailed information on the matter together with some advanced examples.

Example

The following example creates multiple instances of UniParameter through the UniParameterCollection within the UniDataAdapter. These parameters are used to select data from the database and place the data in the System.Data.DataSet. This example assumes that a System.Data.DataSet and a UniDataAdapter have already been created with the appropriate schema, commands, and connection.

csharp

public void AddUniParameters()
{
  // ...
  // create myDataSet and myDataAdapter
  // ...
  myDataAdapter.SelectCommand.Parameters.Add("DName", UniDbType.VarChar, 15).Value = "DEVELOPMENT";
  myDataAdapter.SelectCommand.Parameters.Add("DeptNo", UniDbType.Integer).Value = 50;
  myDataAdapter.Fill(myDataSet);
}

Visual Basic

Public Sub AddUniParameters()
  ' ...
  ' create myDataSet and myDataAdapter
  ' ...
  myDataAdapter.SelectCommand.Parameters.Add("DName", UniDbType.VarChar, 15).Value = "DEVELOPMENT"
  myDataAdapter.SelectCommand.Parameters.Add("DeptNo", UniDbType.Integer).Value = 50
  myDataAdapter.Fill(myDataSet)
End Sub

Inheritance Hierarchy

System.Object
   System.MarshalByRefObject
      System.Data.Common.DbParameter
         Devart.Common.DbParameterBase
            Devart.Data.Universal.UniParameter

Reference

UniParameter Members
Devart.Data.Universal Namespace
UniCommand Class
UniDataAdapter Class

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