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I have the following code:
ContactList = ContactList.FindAll(p => p.DeptName.StartsWith(optAlpha.SelectedItem.Value)).ToList();
If DeptName="test" and optAlpha.SelectedItem.Value="T", it doesn't work.
I tried with the following code, still doesn't work.
ContactList = ContactList.FindAll(p => p.DeptName.ToLower().StartsWith(optAlpha.SelectedItem.Value.ToLower())).ToList();
843
The String. startsWith method is case sensitive.
LINQ has no concept of case sensitivity, it only cares about boolean evaluation. So if you want to ignore case, you should do something like: query = query.
In C#, StartsWith() is a string method. This method is used to check whether the beginning of the current string instance matches with a specified string or not. If it matches then it returns the string otherwise false.
Just use
StartsWith(optAlpha.SelectedItem.Value, StringComparison.InvariantCultureIgnoreCase);
and it will ignore the case during the default comparison.
103
No need to use ToLower you can just call an overload of starts with and pass it StringComparison.InvariantCultureIgnoreCase as the second arg (first being the string to compare). Here's the docs on string comparison options; http://msdn.microsoft.com/en-us/library/system.stringcomparison(v=vs.110).aspx
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