Adding, Updating, and Deleting Records from a Recordset.

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Presentation transcript:

Adding, Updating, and Deleting Records from a Recordset

AddNew Method (ADO) Creates a new record in the edit buffer. The data are not actually written to the underlying database table until you call the Update method. Syntax: recordset.AddNew

Update Method (ADO) Saves any changes you make to the current record of a recordset object. The Update method must be called after the AddNew method. Syntax: recordset.Update

CancelUpdate Method (ADO) If you are editing a record, the CancelUpdate method will restore the contents of the current record to the values that existed before editing began. Syntax: recordset.CancelUpdate

Delete Method (ADO) Removes the current record from the recordset. Typically, the MoveNext method is called so that a current record will exist. Syntax: recordset.Delete

Private Sub cmdDelete_Click() rstCurrent.Delete rstCurrent.MoveNext If rstCurrent.EOF Then rstCurrent.MoveLast End If LoadCurrentRecord End Sub

Recordset EditMode Property Indicates the editing status of the current record. Returns one of the following values: –adEditNone –adEditInProgress –adEditAdd –adEditDelete Example: If rstCurrent.EditMode = adEditAdd Then cboMemberID.AddItem cboMemberID.Text, rstCurrent.AbsolutePosition – 1 End If

Private Sub cmdUpdate_Click() If cboMemberID.Text = rstCurrent("Member ID") Then CopyFields rstCurrent.Update InitialState ElseIf rstCurrent.EditMode = adEditAdd Then CopyFields rstCurrent.Update cboMemberID.AddItem cboMemberID.Text, rstCurrent.AbsolutePosition - 1 InitialState Else cboMemberID.RemoveItem rstCurrent.AbsolutePosition - 1 CopyFields rstCurrent.Update cboMemberID.AddItem cboMemberID.Text, rstCurrent.AbsolutePosition - 1 InitialState End If End Sub