📄 tdataset_prior.htm
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<span style="font-family:Helvetica,Arial; font-size:12pt; color:#000000"><b>TDataSet.Prior
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<span style="font-family:Helvetica,Arial; font-size:10pt; color:#000000">Positions the cursor on the previous record in the dataset.
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<b>procedure </b>Prior;
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<b>Description</b>
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Call Prior to position the cursor on the previous record in the dataset and make it the active record. Prior posts any changes to the active record and
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<table width="100%" border="0" cellpadding="0" cellspacing="0"><tr valign="top"><td width="14"></td><td width="25"><span style="font-family:Helvetica,Arial; font-size:10pt; color:#000000"><font face="Symbol" size="2" color="#000000">·</font></span></td><td><span style="font-family:Helvetica,Arial; font-size:10pt; color:#000000">Sets the Bof and Eof properties to False.
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</span></td></tr></table><table width="100%" border="0" cellpadding="0" cellspacing="0"><tr valign="top"><td width="14"></td><td width="25"><span style="font-family:Helvetica,Arial; font-size:10pt; color:#000000"><font face="Symbol" size="2" color="#000000">·</font></span></td><td><span style="font-family:Helvetica,Arial; font-size:10pt; color:#000000">Fetches the previous record, positions the cursor on it, and makes it the active record.
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</span></td></tr></table><table width="100%" border="0" cellpadding="0" cellspacing="0"><tr valign="top"><td width="14"></td><td width="25"><span style="font-family:Helvetica,Arial; font-size:10pt; color:#000000"><font face="Symbol" size="2" color="#000000">·</font></span></td><td><span style="font-family:Helvetica,Arial; font-size:10pt; color:#000000">Fetches any additional records required for display, such as those needed to fill out a grid control.
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</span></td></tr></table><table width="100%" border="0" cellpadding="0" cellspacing="0"><tr valign="top"><td width="14"></td><td width="25"><span style="font-family:Helvetica,Arial; font-size:10pt; color:#000000"><font face="Symbol" size="2" color="#000000">·</font></span></td><td><span style="font-family:Helvetica,Arial; font-size:10pt; color:#000000">Sets the Bof property to True if the cursor was already at the first record of the dataset.
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</span></td></tr></table><table width="100%" border="0" cellpadding="0" cellspacing="0"><tr valign="top"><td width="14"></td><td width="25"><span style="font-family:Helvetica,Arial; font-size:10pt; color:#000000"><font face="Symbol" size="2" color="#000000">·</font></span></td><td><span style="font-family:Helvetica,Arial; font-size:10pt; color:#000000">Broadcasts the record change so that data controls and linked detail sets can update.
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<b>Note: </b>TDataSet uses internal, protected methods to position the database cursor and to fetch additional records required for display. In TDataSet, these internal methods are abstract. Descendant classes implement these methods to enable the Last method to work.
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