Datagridview cellvalidating cancel


19-Oct-2017 20:56

datagridview cellvalidating cancel-78

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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.

For all sizing enumerations, values with names that refer to displayed cells limit their calculations to cells in displayed rows.

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Remember that you are answering the question for readers in the future, and those people might not know the reasons for your code suggestion.

All Cells); //让 Data Grid View1 的第一行的行高自动调整一下。 Data Grid View1. Bottom = _ Data Grid View Advanced Cell Border Style. Inset Double 同样,设定行头单元格的属性是: Advanced Row Headers Border Style, 设定列头单元格属性是:Advanced Column Headers Border Style。________________________________________⑯ Data Grid View 单元格表示值的自定义通过Cell Formatting事件,可以自定义单元格的表示值。(比如:值为Error的时候,单元格被设定为红色)下面的示例:将“Colmn1”列的值改为大写。[C#]//Cell Formatting 事件处理方法private void Data Grid View1_Cell Formatting(object sender, Data Grid View Cell Formatting Event Args e) Cell Formatting事件的Data Grid View Cell Formatting Event Args对象的Value属性一开始保存着未被格式化的值。当Value属性被设定表示用的文本之后,把Formatting Applied属性做为True,告知Data Grid View文本已经格式化完毕。如果不这样做的话,Data Grid View会根据已经设定的Format,Null Value,Data Source Null Value,Format Provider属性会将Value属性会被重新格式化一遍。________________________________________⑰ Data Grid View 用户输入时,单元格输入值的设定通过 Data Grid View.



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