在文本框或组合框上搜索任何单词 [英] Any word search on textbox or combobox

问题描述

我有一个简单的发票应用程序，在这里我需要一个Item的搜索选项，在这里我使用了组合框，当我键入"a"时，它会产生默认属性"apple".但是在键入"p"时我需要"apple"或"l"以任何方式执行此操作.请帮助我..

I have a simple invoice application where I need an search option for Item there I have used combobox where when I type "a" It results "apple" which is an default property.But I need "apple" when typing "p" or "l" any ways to do that. Please help me..

推荐答案

实现这一目标的方法很少.
字符串.包含方法 [如何:在字符串中搜索(Visual Basic) [

There is few ways to achieve that.
String.Contains Method[^]
How to: Search Within a String (Visual Basic)[^]

Depending on your needs, you can use special characters, like: *; ?, etc.
If you want to find a in entire string, use:

result = stringVariable Like "*a*"

如果要在字符串末尾找到a，请使用:

If you want to find a at the end of string, use:

result = stringVariable Like "*a"

如果要在字符串的开头找到a，请使用:

If you want to find a at the beginning of string, use:

result = stringVariable Like "a*"

请参阅:
类似运算符(Visual Basic) [如何:将字符串与模式匹配(Visual Basic) [正则表达式 [将通配符转换为正则表达式 [

Please, see:
Like Operator (Visual Basic)[^]
How to: Match a String against a Pattern (Visual Basic)[^]


You can use Regex[^] too.
Converting Wildcards to Regexes[^]

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