服务器的所有命令都包括一个范围(起始行、起始列、结束行、结束列——所有0原点)。

All commands to the servers include an extent (start row, start column, end row, end column — all zero origin).

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将已配置和值绑定的组件添加到当前列中，通过将完成的列添加到DataTable的子项中结束列循环迭代。

Add your configured and value-bound component to the current column, and end your column loop iteration by adding the completed column to the children of the DataTable.

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get ColumnNumber返回当前事件结束时所在的那一列。

GetColumnNumber returns the column where the current event ends.

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