SqlSet.Single(String, Object[]) Method
Returns the only element of the set that satisfies a specified condition, and throws an exception if more than one such element exists.
Namespace: DbExtensions
Assembly: DbExtensions.dll
Overloads
| Name | Description | |
|---|---|---|
 |
Single() | The single element of the set. |
|
Single(String, Object[]) | Returns the only element of the set that satisfies a specified condition, and throws an exception if more than one such element exists. |
Syntax
public Object Single(
string predicate,
params Object[] parameters
)
Parameters
predicate String
A SQL expression to test each row for a condition.
parameters Object[]
The parameters to apply to the predicate.
Return Value
Object
The single element of the set that passes the test in the specified predicate.
Exceptions
| Exception | Condition |
|---|---|
| InvalidOperationException | No element satisfies the condition in predicate.-or-More than one element satisfies the condition in predicate.-or-The set is empty. |