If you want to replace data from a form, that form must be bound to the source table.

如果要替换窗体中的数据，该窗体必须被绑定到源表。

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Gets the number of columns contained by the data table bound to the trigger.

获取绑定到触发器的数据表所包含的列的数目。

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Gets the number of columns contained by the data table bound to the trigger.

获取绑定到触发器的数据表所包含的列的数目。

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