📄 tdataset_open.htm

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<span style="font-family:Helvetica,Arial; font-size:12pt; color:#000000"><b>TDataSet.Open
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<span style="font-family:Helvetica,Arial; font-size:10pt; color:#000000">Opens the dataset.
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<b>procedure </b>Open;
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<b>Description</b>
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Call Open to set the Active property for the dataset to True. When Active is True, data can be read from and written to the database.
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Setting Active to True:
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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">&#183;</font></span></td><td><span style="font-family:Helvetica,Arial; font-size:10pt; color:#000000">Triggers the BeforeOpen event handler if one is defined for 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">&#183;</font></span></td><td><span style="font-family:Helvetica,Arial; font-size:10pt; color:#000000">Sets the dataset state to dsBrowse.
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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">&#183;</font></span></td><td><span style="font-family:Helvetica,Arial; font-size:10pt; color:#000000">Opens a Borland Database Engine (BDE) cursor into the dataset, if appropriate (only applies to TBDEDataSet and its descendants, TQuery, TStoredProc, and TTable).
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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">&#183;</font></span></td><td><span style="font-family:Helvetica,Arial; font-size:10pt; color:#000000">Triggers the After Open event handler if one is defined for the dataset.
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If an error occurs during the dataset open, dataset state is set to dsInactive, and the cursor is closed.
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