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Programmatic content-based resizing affects rows, columns, and headers regardless of their visibility.

Automatic sizing does not occur when visibility changes, so changing the column Visible property back to true will not force it to recalculate its size based on its current contents.

You will typically call the programmatic resizing methods at specific times.

It is also useful to provide initial sizes for user-resizable rows, columns, and headers, and for column fill mode.

By default, the Resizable property value is based on the Allow User To Resize Columns property value for columns and the Allow User To Resize Rows property value for rows.Data Grid View控件 Data Grid View是用于Windows Froms 2.0的新网格控件。它能够代替先前版本号中Data Grid控件,它易于使用并高度可定制,支持许多我们的用户须要的特性。 关于本文档: 本文档不准备面面俱到地介绍Data Grid View,而是着眼于深入地介绍一些技术点的高级特性。 本文档按逻辑分为5个章节,首先是结构和特性的概览,其次是内置的列/单元格类型的介绍,再次是数据操作相关的内容,然后是主要特性的综述,最后是最佳实践。 大部分章节含有一个“Q & A”部分,来回答该章节相关的一些常见问题。注意,某些问题会因为知识点的关联性反复出如今多个章节。这些问题、答案及其附带的演示例子代码都包含在本文档的附录部分。 内容 1 何为Data Grid View.. With these values, you can limit which cells are used to calculate the preferred sizes. The enumerations used by sizing properties and methods have similar values for content-based sizing. If content-based automatic sizing is enabled for one dimension only—that is, for rows but not columns, or for columns but not rows—and Wrap Mode is also enabled, size adjustment also occurs whenever the other dimension changes.

In this case, call the Update Cell Value method to force the control to update the cell display and apply the current automatic sizing modes.

You can customize sizing behaviors when working with derived Data Grid View cell, row, and column types by overriding the Data Grid View Cell. The protected resizing method overloads are designed to work in pairs to achieve an ideal cell height-to-width ratio, avoiding overly wide or tall cells.

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