RecordAdded event problem | Infragistics Forums

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RecordAdded event problem

Kornel posted over 16 years ago

when i tried to create a record, field values are empty in RecordAdded event.

private void dg_RecordAdded(object sender, RecordAddedEventArgs e)

{

e.Record.Cells["FieldName1"].Value.ToString()

}

is this the correct way to retrieve the values???

or i am doing something wrong.

if there is any example for adding new records please direct me.

thanks

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Offline Joe Modica posted over 16 years ago
Hi -

The RecordAdded event is fired as soon as the user clicks in the Add Row and types the first character in any cell. At this point there is obviously no data in the record. The RecordUpdated event will then fire when the user is finished editing (at which time the cell values will be available) - the timing of the RecordUpdated event is determine by the XamDataGrid.UpdateMode property which takes an enumeration with the following values:

OnCellChange

OnCellChangeOrLostFocus

OnRecordChange

OnRecordChangeOrLostFocus

OnUpdate

To force the RecordUpdated event to fire only after the user 'moves off' the Add Record, set the UpdateMode to OnRecordChange.

BTW - for best performance you should generally use the Record's GetCellValue method to get the value in a cell rather than accessing the Cells collection since the GetCellValue method will not allocate a Cell object, while accessing the Cells collection directly will.

Joe
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Kornel posted over 16 years ago in reply to Joe Modica

RecordAdded is only to make sure, if the addind started or not?

I am thinking RecordUpdate is only to update the existing records.

so, if i have to create a new record....

I have to use the RecordUpdated method?? in this case, how do i know, if its a new record or the old record is being update?

if possible could you please drop few lines of code or guide me where i can look at the code related to adding new record...its confusing
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Offline Joe Modica posted over 16 years ago in reply to Kornel

Here is some code that you can use to determine if the Record passed into the RecordUpdated event is a record that was just added. Note: This approach of using the Tag property of the Record will only work in the latest hotfix since the Tag property was just added. If you are using an older version you could simply save a reference to the newly added record in RecordAdded and then check that reference in RecordUpdated.

void xamDataGrid1_RecordUpdated(object sender, Infragistics.Windows.DataPresenter.Events.RecordUpdatedEventArgs e)

{

if (e.Record.Tag is string && (string)e.Record.Tag == "IsAddRecord")

{

// Do what you need to do

e.Record.Tag = null;

}

}

void xamDataGrid1_RecordAdded(object sender, Infragistics.Windows.DataPresenter.Events.RecordAddedEventArgs e)

{

if (e.Record.IsAddRecord)

e.Record.Tag = "IsAddRecord";

}

Joe
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