For example, if you call the Auto Resize Rows(Data Grid View Auto Size Rows Mode, Boolean) overload of the Auto Resize Rows method and pass in a value of false for the Boolean parameter, the overload will calculate the ideal heights and widths for cells in the row, but it will adjust the row heights only. 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. Content-based automatic sizing modes do not affect rows, columns, or headers that you have hidden by setting the row or column Visible property or the control Row Headers Visible or Column Headers Visible properties to false. For maximum performance, use programmatic resizing instead so that you can resize at specific times, such as immediately after new data is loaded. When automatic sizing is disabled, you can programmatically set the exact width or height of rows, columns, or headers through the following properties: These methods will resize rows, columns, or headers once rather than configuring them for continuous resizing. Programmatic content-based resizing affects rows, columns, and headers regardless of their visibility. To avoid performance penalties, use the automatic sizing modes that calculate sizes based only on the displayed rows rather than analyzing every row in the control.
Data Grid View控件 Data Grid View是用于Windows Froms 2.0的新网格控件。它可以取代先前版本中Data Grid控件，它易于使用并高度可定制，支持很多我们的用户需要的特性。 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，某些问题会由于知识点的关联性重复出现在多个章节。这些问题、答案及其附带的示例代码都包含在本文档的附录部分。 内容 1 何为Data Grid View.. Excluding rows is useful to avoid a performance penalty when you are working with a large quantity of rows.
The enumerations used by sizing properties and methods have similar values for content-based sizing.
You must then call the Auto Resize Columns method to adjust the column widths to the calculated ideal.
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.
For example, if a column is hidden after it is automatically sized to fit a large cell value, the hidden column will not change its size if the row containing the large cell value is deleted.