IDwReadOnlyArgument Interface

.NET Standard 2.x

Represents an argument to be passed to the stored procedure. All properties are read-only.

Namespace: DWNet.Data

Assembly: DWNet.Data.dll

Syntax

public interface IDwReadOnlyArgument

Property

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