tdataset_clearfields.htm

来自「Absolute Database 5.12 src. Absolute Da」· HTM 代码 · 共 52 行

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<span style="font-family:Helvetica,Arial; font-size:12pt; color:#000000"><b>TDataSet.ClearFields
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</b><span style="font-family:Helv; font-size:9pt; color:#000000"><span style="font-family:Helv; font-size:9pt; color:#7F0000"><a href=tdataset.htm>TDataSet</a></span></span><span style="font-family:Helvetica,Arial; font-size:12pt; color:#000000"><b>
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<span style="font-family:Helvetica,Arial; font-size:10pt; color:#000000">Clears the contents of all fields for the active record.
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<b>procedure </b>ClearFields;
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<b>Description</b>
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Call ClearFields to erase the current contents of all fields for the active record. If the dataset is not in either dsInsert or dsEdit state, ClearFields raises an exception.
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If a SetKey operation is not under way, ClearFields recalculates all calculated fields, and generates an OnDataChange event on the data source component associated with the dataset.
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