Exago .NET API Documentation
ColumnParamName Property
Example 
WebReports.Api.Common Namespace > General Class : ColumnParamName Property

The Programmable Object Settings enable you to specify names for special parameters that will be passed from Exago to identically named parameters in stored procedures or .NET Assemblies. Using these parameters will allow filtering to be done before the data is sent to Exago. This can increase performance and reduce server resources when using Programmable Objects. For more information on these types of Data Objects see Web Services & .NET Assemblies.

Reminder
If an Exago .NET API application needs to access reports with an assembly data source, it must include a reference to the assembly WebReportsAsmi.dll.

Provide a parameter name in the programmable object that will hold:

Syntax
public System.string ColumnParamName {get; set;}

Property Value

The unique name for a parameter to be made accessible in the programmable object.
Remarks
Same as setting Admin Console > General > Programmable Object Settings > Column Parameter Name.
Example
This is a sample stored procedure that use the Programmable Object Settings parameters.
CREATE PROCEDURE [dbo].[sp_webrpt_person]
@callType INT,
@columnStr varchar(1000),
@filterStr varchar(1000),
@fullFilterStr varchar(1000),
@sortStr varchar(1000)
AS
SET NOCOUNT ON /*for performance reasons */
SET FMTONLY OFF /*force procedure to return data and process IF conditions */
declare @sql varchar(2000)
declare @columnInfo varchar(1000)
declare @orderbyClause varchar(1000)
declare @operator varchar(max)
if @callType = 0 /*return schema; no need to return any rows */
begin
 set @sql = 'select * from vw_webrpt_person where 0 = 1'
end
else
if @callType = 1 /*return all data for execution */
begin
 set @orderbyClause = ''
 if @sortStr is not NULL AND @sortStr <> 'null' set @orderbyClause = ' ORDER BY ' + @sortStr
 set @sql = 'select ' + @columnStr + ' from vw_webrpt_person where ' + @filterStr + @orderbyClause
end
else
if @callType = 2 /*return filter dropdown values; limit # rows to some value; sortStr will indicate which direction user is scrolling the dropdown*/
begin
set @orderByClause = ''
 set @operator = ' >= '
 if @sortStr is not NULL AND @sortStr <> 'null' AND @sortStr <> '' Begin SET @orderByClause = ' ORDER BY ' + @sortStr END
 if (RIGHT(@sortStr, 4) = 'DESC')Begin SET @operator = ' <= 'END
 set @columnInfo = '[' + @columnStr + ']'
 SET @sql = 'select top 100 ' + @columnInfo + ' from Northwind.dbo.OrderDetails where ' + @columnInfo + @operator + @filterStr + ' AND ' + @fullFilterStr + @orderByClause
end
exec(@sql)
Setting the name of five Programmable Object Parameters that will be passed to the above stored procedure when queried
api.General.CallTypeParamName = "callType";
api.General.ColumnParamName = "columnStr";
api.General.FilterParamName = "filterStr";
api.General.FullFilterParamName = "fullFilterStr";
api.General.SortParamName = "sortStr";
See Also

Reference

General Class
General Members

Exago Knowledge Base

Roles
Programmable Object Settings
Data Sources > .NET Assemblies