Session.ExecuteSproc(String, OperandValue[]) Method
Executes the specified stored procedure and returns its result set.
Namespace: DevExpress.Xpo
Assembly: DevExpress.Xpo.v24.2.dll
NuGet Package: DevExpress.Xpo
#Declaration
public SelectedData ExecuteSproc(
string sprocName,
params OperandValue[] parameters
)
#Parameters
Name | Type | Description |
---|---|---|
sproc |
String | A String value that specifies the stored procedure’s name. |
parameters | Operand |
An array of Operand |
#Returns
Type | Description |
---|---|
Selected |
A Selected |
#Remarks
This method takes in or in-out parameters. The paramerers array order should match the parameters order in the stored procedure’s signature. Out parameter values are returned in a supplementary ResultSet which includes two columns - parameter names and values. In this case the procedure returns nothing but out parameter values, the first result set will be empty and the second will contain result values. In the case where the stored procedure is a function, one more ResultSet, which contains a single cell with the function result, is returned.
Below is an example of a ExecuteSproc method call.
SelectedData data =
session.ExecuteSproc("TestProc", new OperandValue(123), new OperandValue("abc"));
To visualize the result set returned by the ExecuteSproc method, use XPDataView. To learn how to access the resulting data, refer to How to: Access Data in SQL Query Results. For example, you can bind the GridControl control to the ExecuteSproc result as follows:
using DevExpress.Xpo;
using DevExpress.Xpo.DB;
// ...
SelectedData sprocData = session.ExecuteSproc("MySproc");
gridControl1.DataSource = new XPDataView(session.Dictionary, session.GetClassInfo(typeof(MySproc)), sprocData);
To learn more about executing stored procedures in XPO, refer to Stored Procedures.
Note
You can avoid an extra request that fills the parameters list and improve performance by using the Session.