IDwArgument Interface

.NET Standard 2.x

Represents an argument to be passed to the stored procedure.

Namespace: DWNet.Data

Assembly: DWNet.Data.dll

Implements

DWNet.Data.IDwReadOnlyArgument

Syntax

public interface IDwArgument : IDwReadOnlyArgument

Property

Name	Return Type	Description
ColumnName	System.String	Gets or sets the name of the column where argument value will be taken from. It has the form: "tablename.column".
ComputeName	System.String	Gets or sets the name of the compute where argument value will be taken from.
Direction	System.Data.ParameterDirection	Gets or sets the type of stored procedure parameter.
Expression	IReadOnlyExpressionable<object>	Gets or sets the expression that is evaluated and passed to the stored procedure.
Name	System.String	Gets or sets the name of the argument.
Source	DwArgumentSource	Gets or sets the value source type.
UseOriginal	System.Boolean	Gets or sets a bool value indicating whether the data is the new or original column value.

Remarks

In the DataWindow syntax, it is a string specifying the arguments used in the stored procedure.

The string takes this format: ("argname", valuetype { =("valuesrc" {, datasrc, paramtype } )

• Argname is the name of the stored procedure parameter.

• Valuetype is one of the keywords (COLUMN/COMPUTE/EXPRESSION/UNUSED). Datasrc and paramtype apply to the COLUMN keyword.

• Valuesrc is the column, computed field, or expression that produces the value to be passed to the stored procedure.

• Datasrc: for COLUMN, you must also specify whether the data is the new or original column value.

• Paramtype: you can also specify the type of stored procedure parameter.