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EntityConnectionExtensions.TrySingle<TRow> method (1 of 2)

namespace: Serenity.Data   assembly: Serenity.Net.Entity

Tries to find a single entity, allowing caller to edit the criteria and set of fields to load through a editQuery callback.

public static TRow TrySingle<TRow>(this IDbConnection connection, Action<SqlQuery> editQuery)
    where TRow : class, IRow, new()
parameter description
TRow The type of the row.
connection The connection.
editQuery The edit query.

Return Value

Single entity matching the criteria set by editQuery, or null if not found.

Exceptions

exception condition
InvalidOperationException Multiple records matching the specified criteria.

See Also

EntityConnectionExtensions.TrySingle<TRow> method (2 of 2)

namespace: Serenity.Data   assembly: Serenity.Net.Entity

Tries to find a single entity matching the specified criteria. This method selects only the table fields, and no foreign / calculated fields. Use other overloads if you want to select different set of fields.

public static TRow TrySingle<TRow>(this IDbConnection connection, ICriteria where)
    where TRow : class, IRow, new()
parameter description
TRow The type of the row.
connection The connection.
where The where criteria.

Return Value

The single entity matching the specified criteria, or null if no matching record found

Exceptions

exception condition
InvalidOperationException Multiple records matching the criteria found

See Also