RetrieveSystemValues() method
Description
The RetrieveSystemValues method queries the QWCRSVAL API for a set of specified system values.
It returns a list of objects of type SystemValueInformation containing details of each system value retrieved.
This method can process a maximum of 158 system values in a single call.
Syntax
RetrieveSystemValues(string[] validSystemValues)Parameters
| Name | Type | Description |
|---|---|---|
validSystemValues |
string[] |
An array containing the names of the system values to be retrieved. Each name must not exceed 10 characters and the array can contain up to 158 system values. |
Return
Returns a list of objects of type SystemValueInformation which contains details of each system value retrieved.
SystemValueInformation Class
| Property | Type | Description |
|---|---|---|
| SystemValue | string |
The name of the system value. |
| DataType | string |
The data type of the system value, represented as a string. |
| InformationStatus | string |
Status of system value information. |
| LengthOfData | int |
Length of the system value data, in number of bytes. |
| Data | object |
The actual value of the system value in the form of a generic object. |
Exceptions
- ArgumentOutOfRangeException : Thrown if the array contains more than 158 system value names.
- InvalidOperationException : Thrown if the size of the returned data is insufficient to process the request, or if an error occurs during execution.
Examples of use
var systemValues = conn.RetrieveSystemValues(new string[] { ‘QTIME’, ‘QDATE’ });
foreach (var systemValue in systemValues)
{
Console.WriteLine($‘System Value: {systemValue.SystemValue}, Data: {systemValue.Data}’);
}References
For more information on the QWCRSVAL API, see the official IBM documentation.
