Method DeleteAsync
| Improve this Doc View SourceDeleteAsync(CancellationToken)
Deletes all records in this database table.
Declaration
public Task<int> DeleteAsync(CancellationToken ct = default(CancellationToken))Parameters
| Type | Name | Description |
|---|---|---|
| System.Threading.CancellationToken | ct | The async cancellation token. |
Returns
| Type | Description |
|---|---|
| System.Threading.Tasks.Task<System.Int32> | Number of records deleted. |
DeleteAsync(Func<T, _Boolean>, CancellationToken)
Deletes records in this database table by condition.
Declaration
public Task<int> DeleteAsync(Func<T, _Boolean> where, CancellationToken ct = default(CancellationToken))Parameters
| Type | Name | Description |
|---|---|---|
| System.Func<T, _Boolean> | where | The condition. |
| System.Threading.CancellationToken | ct | The async cancellation token. |
Returns
| Type | Description |
|---|---|
| System.Threading.Tasks.Task<System.Int32> | Number of records deleted. |
DeleteAsync<TSource>(DbSet<TSource>, CancellationToken)
Deletes records in this database table from matching database recordset.
Declaration
public Task<int> DeleteAsync<TSource>(DbSet<TSource> source, CancellationToken ct = default(CancellationToken))
where TSource : class, T, new()Parameters
| Type | Name | Description |
|---|---|---|
| DbSet<TSource> | source | The matching database recordset. |
| System.Threading.CancellationToken | ct | The async cancellation token. |
Returns
| Type | Description |
|---|---|
| System.Threading.Tasks.Task<System.Int32> | Number of records deleted. |
Type Parameters
| Name | Description |
|---|---|
| TSource | Entity type of the source database recordset. |
DeleteAsync<TSource>(DbSet<TSource>, Func<TSource, T, KeyMapping>, CancellationToken)
Deletes records in this database table from matching database recordset.
Declaration
public Task<int> DeleteAsync<TSource>(DbSet<TSource> source, Func<TSource, T, KeyMapping> keyMapper, CancellationToken ct = default(CancellationToken))
where TSource : class, IEntity, new()Parameters
| Type | Name | Description |
|---|---|---|
| DbSet<TSource> | source | The matching database recordset. |
| System.Func<TSource, T, KeyMapping> | keyMapper | Provides key mapping between source database recordset and this table. |
| System.Threading.CancellationToken | ct | The async cancellation token. |
Returns
| Type | Description |
|---|---|
| System.Threading.Tasks.Task<System.Int32> | Number of records deleted. |
Type Parameters
| Name | Description |
|---|---|
| TSource | Entity type of the source database recordset. |
DeleteAsync<TSource>(DataSet<TSource>, Int32, CancellationToken)
Deletes from matching row in DataSet.
Declaration
public Task<int> DeleteAsync<TSource>(DataSet<TSource> source, int rowIndex, CancellationToken ct = default(CancellationToken))
where TSource : class, T, new()Parameters
| Type | Name | Description |
|---|---|---|
| DataSet<TSource> | source | The source matching DataSet. |
| System.Int32 | rowIndex | The row index in the DataSet. |
| System.Threading.CancellationToken | ct | The async cancellation token. |
Returns
| Type | Description |
|---|---|
| System.Threading.Tasks.Task<System.Int32> | Number of records deleted. |
Type Parameters
| Name | Description |
|---|---|
| TSource | Entity type of the source DataSet. |
DeleteAsync<TSource>(DataSet<TSource>, Int32, Func<TSource, T, KeyMapping>, CancellationToken)
Deletes from matching row in DataSet.
Declaration
public Task<int> DeleteAsync<TSource>(DataSet<TSource> source, int rowIndex, Func<TSource, T, KeyMapping> keyMapper, CancellationToken ct = default(CancellationToken))
where TSource : class, IEntity, new()Parameters
| Type | Name | Description |
|---|---|---|
| DataSet<TSource> | source | The source matching DataSet. |
| System.Int32 | rowIndex | The row index in the DataSet. |
| System.Func<TSource, T, KeyMapping> | keyMapper | Provides key mapping between source DataSet and this table. |
| System.Threading.CancellationToken | ct | The async cancellation token. |
Returns
| Type | Description |
|---|---|
| System.Threading.Tasks.Task<System.Int32> | Number of records deleted. |
Type Parameters
| Name | Description |
|---|---|
| TSource | Entity type of the source DataSet. |
DeleteAsync<TSource>(DataSet<TSource>, CancellationToken)
Deletes records in this database table from matching DataSet.
Declaration
public Task<int> DeleteAsync<TSource>(DataSet<TSource> source, CancellationToken ct)
where TSource : class, T, new()Parameters
| Type | Name | Description |
|---|---|---|
| DataSet<TSource> | source | The source matching DataSet. |
| System.Threading.CancellationToken | ct | The async cancellation token. |
Returns
| Type | Description |
|---|---|
| System.Threading.Tasks.Task<System.Int32> | Number of records deleted. |
Type Parameters
| Name | Description |
|---|---|
| TSource | Entity type of the source DataSet. |
DeleteAsync<TSource>(DataSet<TSource>, Func<TSource, T, KeyMapping>, CancellationToken)
Deletes records in this database table from matching DataSet.
Declaration
public Task<int> DeleteAsync<TSource>(DataSet<TSource> source, Func<TSource, T, KeyMapping> keyMapper, CancellationToken ct = default(CancellationToken))
where TSource : class, IEntity, new()Parameters
| Type | Name | Description |
|---|---|---|
| DataSet<TSource> | source | The source matching DataSet. |
| System.Func<TSource, T, KeyMapping> | keyMapper | Provides key mapping between source DataSet and this table. |
| System.Threading.CancellationToken | ct | The async cancellation token. |
Returns
| Type | Description |
|---|---|
| System.Threading.Tasks.Task<System.Int32> | Number of records deleted. |
Type Parameters
| Name | Description |
|---|---|
| TSource | Entity type of the source DataSet. |