过滤DataGridView中的行？ [英] Filter rows in DataGridView?

问题描述

它看起来像是一个新手的问​​题，但它实际上并不是。



问题是我只想要我的DataGridView'的DataSource这样：

It looks like a newbie''s question but it''s not actually.

The problem is I just want my DataGridView''s DataSource like this:

myDataGridView.DataSource = myDataSet;
myDataGridView.DataMember = "myTableName";
//however filtering its rows like this doesn't work:
myDataSet.Tables["myTableName"].DefaultView.RowFilter = "...";

Plus，myDataSet已经绑定到我的表单上的一些控件，我不想重新绑定它，以防myDataGridView的DataSource发生变化。



如果这个条件不是在这种情况下，我会使用以下内容并可以过滤行OK：

Plus, myDataSet is already bound to some controls on my form and I don''t want to rebind it in case that myDataGridView''s DataSource changes.

If that condition is not the case, I would use the following and can filter rows OK:

//choice 1
myDataGridView.DataSource = myDataTable;
//then filter rows like this:
myDataTable.DefaultView.RowFilter = "...";

//choice 2
BindingSource bs = new BindingSource(myDataSet, "myTableName");
myDataGridView.DataSource = bs;
//then filter rows like this:
bs.Filter = "...";

我只想在第一个代码片段中使用它。在这种情况下如何过滤行？



提前感谢您的帮助！

I just want it as in the first code snippet. How can I filter its rows in that case?

Thank you in advance for your help!

推荐答案

你不能在没有BindingSource的情况下过滤行，除非你重新加载数据源并改变它包含的实际行 - 这就是你首先使用绑定源的原因：充当可以的中介b>被过滤。

You can''t filter rows without a BindingSource unless you reload the data source and change the actual rows it contains - that is why you use a Binding Source in the first place: to act as an intermediary which can be filtered.

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