JVCL Help:TJvCsvDataSet.OnSetFieldData

 JVCL Help: TJvCsvDataSet.OnSetFieldData Event

TJvCsvDataSet

► TJvCsvDataSet Events

[+] TJvCsvDataSet Events

► TJvCsvDataSet Properties

[+] TJvCsvDataSet Properties

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Summary

Event fired when field data is going to be updated from data aware control back into our Dataset.

Pascal

 propertyOnSetFieldData: TJvCsvOnSetFieldData;

Parameters

Parameters	Description
Sender	Description for this parameter
UserTag	The record's tag (integer) property
UserData	The record's data (pointer) property. Perhaps this is the custom object that contains the actual data?
FieldName	The field name we are being asked for?
Value	This is the new changed field value (encoded as a CSV string) which is being put into the CSV file.

Description

An OnSetFieldData event written by the end user allows the end user to create a Virtual DataSet where the data in the CSV rows is really just a cache which can be updated when displayed and when a change is made to the cached data, the change can also automatically be written to the place where the data really came from.

See Also

TJvCustomCsvDataSet.OnGetFieldData, TJvCustomCsvDataSet.GetUserTag, TJvCustomCsvDataSet.SetUserTag, TJvCustomCsvDataSet.GetUserData, TJvCustomCsvDataSet.SetUserData, TJvCustomCsvDataSet.SetAllUserData

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