Is there a toupper or tolower or similar functions I can use to do a case-insensitive LINQ to XML query? If so, how do you revise the following line of code to do a case-insensitive query? Thanks.
我是否可以使用toupper或tolower或类似的函数来执行不区分大小写的LINQ到XML查询?如果是,如何修改以下代码行来执行不区分大小写的查询?谢谢。
User types search word into textbox and I do this in LINQ:
用户将搜索词输入文本框,我在LINQ中这样做:
where d.Element("ProductName").Value.Contains(textBox1.Text)
2 个解决方案
#1
2
where d.Element("ProductName").Value.ToLower().Contains(textBox1.Text.ToLower())
You probably should do some sort of null check though, just in case.
你可能应该做一些零校验,以防万一。
#2
4
It is very simple (and not correct)
它非常简单(而且不正确)
where d.Element("ProductName").Value.Equals(
textBox1.Text, StringComparison.InvariantCultureIgnoreCase)
Ok, edited - more on MSDN:
好的,编辑-更多关于MSDN:
where d.Element("ProductName").Value.IndexOf(
textBox1.Text, StringComparison.InvariantCultureIgnoreCase) > 0
#1
2
where d.Element("ProductName").Value.ToLower().Contains(textBox1.Text.ToLower())
You probably should do some sort of null check though, just in case.
你可能应该做一些零校验,以防万一。
#2
4
It is very simple (and not correct)
它非常简单(而且不正确)
where d.Element("ProductName").Value.Equals(
textBox1.Text, StringComparison.InvariantCultureIgnoreCase)
Ok, edited - more on MSDN:
好的,编辑-更多关于MSDN:
where d.Element("ProductName").Value.IndexOf(
textBox1.Text, StringComparison.InvariantCultureIgnoreCase) > 0