AddFieldFromExpressionAsync Method
Overloads
| AddFieldFromExpressionAsync(String, String) |
Adds a field on the fly. |
|
| AddFieldFromExpressionAsync(AsyncHandle, String, String) |
Adds a field on the fly. |
|
| AddFieldFromExpressionAsync<T>(AsyncHandle, Func<Response, T>, String, String) |
Adds a field on the fly. |
AddFieldFromExpressionAsync(String, String)
Adds a field on the fly.
Declaration
Task<bool> AddFieldFromExpressionAsync([QixName("qName")] string name, [QixName("qExpr")] string expr)
Parameters
| Type | Name | Description |
|---|---|---|
| System.String | name |
Name of the field. |
| System.String | expr |
Expression value.
It is not possible to use all aggregation functions. For example, you cannot add a field on the fly with an expression that uses the |
Returns
| Type | Description |
|---|---|
| System.Threading.Tasks.Task<System.Boolean> |
Remarks
The expression of a field on the fly is persisted but not its values.
AddFieldFromExpressionAsync(AsyncHandle, String, String)
Adds a field on the fly.
Declaration
Task<bool> AddFieldFromExpressionAsync(AsyncHandle asyncHandle, [QixName("qName")] string name, [QixName("qExpr")] string expr)
Parameters
| Type | Name | Description |
|---|---|---|
| AsyncHandle | asyncHandle |
Handle to asynchronous method request |
| System.String | name |
Name of the field. |
| System.String | expr |
Expression value.
It is not possible to use all aggregation functions. For example, you cannot add a field on the fly with an expression that uses the |
Returns
| Type | Description |
|---|---|
| System.Threading.Tasks.Task<System.Boolean> |
Remarks
The expression of a field on the fly is persisted but not its values.
AddFieldFromExpressionAsync<T>(AsyncHandle, Func<Response, T>, String, String)
Adds a field on the fly.
Declaration
Task<T> AddFieldFromExpressionAsync<T>(AsyncHandle asyncHandle, Func<Response, T> onResult, [QixName("qName")] string name, [QixName("qExpr")] string expr)
Parameters
| Type | Name | Description |
|---|---|---|
| AsyncHandle | asyncHandle |
Handle to asynchronous method request |
| System.Func<Response, T> | onResult |
Continuation function |
| System.String | name |
Name of the field. |
| System.String | expr |
Expression value.
It is not possible to use all aggregation functions. For example, you cannot add a field on the fly with an expression that uses the |
Returns
| Type | Description |
|---|---|
| System.Threading.Tasks.Task<T> |
Type Parameters
| Name | Description |
|---|---|
| T |
Remarks
The expression of a field on the fly is persisted but not its values.