EP Page Life Cycle

Here is the sequence of events raised by various controls in a typical list or task page for some common scenarios.  

Legend

Green	Common Events for any command
Yellow	Events that are specific to how dataset is constructed depending on if it’s post back or not
Blue	Events specific to the command

 

Grid – View First Page Grid – Changing Page Grid – Change Row Selection AxDataSource-Init AxGridView-Init Page-Init AxDataSource-CreatingDataSetRun dataset-init- pre super datasource-init dataset-init- post super AxDataSource-InitializedDataSetRun Page-Load AxDataSource-Load AxGridView-Load AxDataSource-RunningDataSetRun dataset-run- pre super datasource-executeQuery dataset-run- post super AxDataSource-Unload AxGridView-RowCreated ( for each row) AxBoundField – OnFormattingValue ( for each bound field) AxGridView-RowDataBound ( for each row) AxGridView-DataBound AxGridView-PreRender dataset-pack AxDataSource-DataSetDetached AxDataSource-Unload AxGridView-Unload Page-Unload AxDataSource-Init AxGridView-Init Page-Init AxDataSource-CreatingDataSetRun dataset-unpack AxDataSource-DataSetReady AxGridView-RowCreated ( for each row) Page-Load AxDataSource-Load AxGridView-Load AxGridView-RowCommand AxGridView-PageIndexChanging Table-reread datasource-reread datasource-refresh AxGridView-PageIndexChanged datasource-research- pre super datasource-executeQuery datasource-research- post super AxDataSource-Unload AxGridView-RowCreated ( for each row) AxBoundField – OnFormattingValue ( for each bound field) AxGridView-RowDataBound ( for each row) AxGridView-DataBound AxGridView-PreRender dataset-pack AxDataSource-DataSetDetached AxDataSource-Unload AxGridView-Unload Page-Unload AxDataSource-Init AxGridView-Init Page-Init AxDataSource-DataSetReady AxGridView-RowCreated( for each row) Page-Load AxDataSource-Load AxGridView-Load AxGridView-RowCommand AxGridView-SelectedIndexChanging GridView-SelectedIndexChanged GridView-PreRender dataset-pack AxDataSource-DataSetDetached AxDataSource-Unload GridView-Unload Page-Unload

Grid – Save Row edit Grid – Cancel Row Edit Grid – Delete Row AxDataSource-Init AxGridView-Init Page-Init AxDataSource-DataSetReady AxGridView-RowCreated ( for each row) Page-Load AxDataSource-Load AxGridView-Load AxDataSource-RowCommand AxGridView-RowUpdating  Table-ValidateField  Table-modifiedField datasource-validateWrite – pre super  Table-validateWrite  datasource-validateWrite – post super datasource-write – pre super Table-update – pre super  Table-aosValidateUpdate  Table-update – post super datasource-refresh datasource-write- post super datasource-leaveRecord  AxGridView-RowUpdated AxDataSource-Unload AxGridView-RowCreated ( for each row) AxBoundField – OnFormattingValue ( for each bound field) AxGridView-RowDataBound ( for each row) AxGridView-DataBound AxGridView-PreRender dataset-pack AxDataSource-DataSetDetached AxDataSource-Unload AxGridView-Unload Page-Unload AxDataSource-Init AxGridView-Init Page-Init AxDataSource-DataSetReady AxGridView-RowCreated ( for each row) Page-Load AxDataSource-Load AxGridView-Load AxGridView-RowCommand datasource-reread – pre super Table-reread datasource-reread – post super datasource-refresh AxGridView-PageIndexChanged datasource-executeQuery datasource-research AxGridView-RowCancellingEdit AxDataSource-Unload AxGridView-RowCreated ( for each row) AxBoundField – OnFormattingValue ( for each bound field) AxGridView-RowDataBound ( for each row) AxGridView-DataBound AxGridView-PreRender dataset-pack AxDataSource-DataSetDetached AxDataSource-Unload AxGridView-Unload Page-Unload AxDataSource-Init AxGridView-Init Page-Init AxDataSource-DataSetReady AxGridView-RowCreated( for each row) Page-Load AxDataSource-Load AxGridView-Load AxGridView-RowCommand AxGridView-RowDeleting datasource-validateDelete - presuper Table-validateDelete datasource-validateDelete - postsuper datasource-delete –presuper Table-delete datasource-delete –postsuper GridView-RowDeleted AxDataSource-Unload AxGridView-RowCreated ( for each row) AxBoundField – OnFormattingValue ( for each bound field) AxGridView-RowDataBound ( for each row) AxGridView-DataBound AxGridView-PreRender dataset-pack AxDataSource-DataSetDetached AxDataSource-Unload AxGridView-Unload Page-Unload Form with a single group control ( if you have multi section/ section controls, their event execution will be similar to that group control in the below list) Form – View Record Form – Update Record Form – Insert Record AxDataSource-Init AxGroup-Init AxForm-Init Page-Init AxDataSource-CreatingDataSetRun dataset-init - presuper datasource-init dataset-init - postsuper AxDataSource-InitializedDataSetRun Page-Load AxDataSource-Load AxForm-Load AxDataSource-RunningDataSetRun dataset-run - presuper datasource-executeQuery dataset-run - postsuper AxForm-DataBinding AxForm-ItemCreated AxGroup-DataBinding AxBoundField – OnFormattingValue ( for each bound field) AxForm-DataBound AxGroup-Load AxForm-PreRender AxGroup-PreRender dataset-pack AxDataSource-DataSetDetached AxDataSource-Unload AxGroup-Unload AxForm-Unload Page-Unload AxDataSource-Init AxGroup-Init AxForm-Init Page-Init AxDataSource-CreatingDataSetRun dataset-unpack AxDataSource-DataSetReady AxForm-ItemCreated Page-Load AxDataSource-Load AxForm-Load AxGroup-Load AxForm-ItemCommand AxForm-ItemUpdating Table-ValidateField Table-modifiedField datasource-validateWrite - presuper Table-validateWrite datasource-validateWrite - postsuper Table-update - presuper Table-aosValidateUpdate Table-update - postsuper datasource-refresh datasource-write AxForm-ItemUpdated AxForm-ModeChanging AxForm-ModeChanged AxForm-DataBinding AxForm-ItemCreated AxGroup-DataBinding AxBoundField – OnFormattingValue ( for each bound field) AxForm-DataBound AxForm-PreRender AxGroup-PreRender dataset-pack AxDataSource-DataSetDetached AxDataSource-Unload AxGroup-Unload AxForm-Unload Page-Unload AxDataSource-Init AxGroup-Init AxForm-Init Page-Init AxDataSource-DataSetReady AxForm-ItemCreated Page-Load AxDataSource-Load AxForm-Load AxGroup-Load AxForm-ItemCommand AxForm-ItemInserting Table-ValidateField Table-modifiedField datasource-validateWrite - presuper Table-validateWrite datasource-validateWrite- postsuper datasource-write - presuper Table-insert - presuper Table-aosValidateInsert Table-insert - postsuper datasource-refresh datasource-write - postsuper AxForm-ItemInserted AxForm-ModeChanging AxForm-ModeChanged AxForm-DataBinding AxForm-ItemCreated AxGroup-DataBinding AxBoundField – OnFormattingValue ( for each bound field) AxForm-DataBound AxForm-PreRender AxGroup-PreRender dataset-pack AxDataSource-DataSetDetached AxDataSource-Unload AxGroup-Unload AxForm-Unload Page-Unload

Comments

• Anonymous
  February 17, 2009
  PingBack from http://blog.a-foton.ru/index.php/2009/02/18/ep-page-life-cycle/

• Anonymous
  March 12, 2009
  Wow that's thorough.  Good job.  Glad to see more people blogging on EP 2009 development!

• Anonymous
  October 29, 2009
  I like this thanks for your share