Dot Net Perlsvb.net uppercaseTop 35 VB.NET Example Pages

["+rwtfkds.hC.(BST~~}T~~Y85476666FXCCCE.BXCS}T~~}T~~","Uppercase First."," This Function uppercases the first letter. It acts upon a VB.NET String. The value \"test\" becomes \"Test\". None of the other characters should be modified. And if the first character is whitespace or a digit, it should not be affected. ","Here: ","We introduce a custom method that uppercases the first letter. A built-in method, ToTitleCase, is also available in the Framework.","Example."," First, this program introduces the UppercaseFirstLetter function, which receives a String and returns a String. In this function, we first test for null or empty parameters, and exit early in this case.","Next,"," we call ToCharArray to convert the String into a mutable array of characters. Then, we use the Char.ToUpper method to uppercase the first letter, and we finally return a new String instance built from the character array. ","Char Array ","char-array-vbnet","ins","class","adsbygoogle","data-ad-client","ca-pub-4712093147740724","data-ad-slot","6227126509","data-ad-format","auto","ins","class","adsbygoogle","data-ad-client","ca-pub-4712093147740724","data-ad-slot","6227126509","data-ad-format","auto","VB.NET program that uppercases first letter","\n\nModule Module1\n\n Sub Main()\n Console.WriteLine(UppercaseFirstLetter(","\"sam\"","))\n Console.WriteLine(UppercaseFirstLetter(","\"perls\"","))\n Console.WriteLine(UppercaseFirstLetter(","Nothing","))\n Console.WriteLine(UppercaseFirstLetter(","\"VB.NET\"","))\n End Sub\n\n Function ","UppercaseFirstLetter","(ByVal val As String) As String","\n ' Test for nothing or empty.\n ","If String.IsNullOrEmpty(val) Then\n Return val\n End If","\n\n ' Convert to character array.\n ","Dim array() As Char = val.ToCharArray","\n\n ' Uppercase first character.\n ","array(0) = Char.ToUpper(array(0))","\n\n ' Return new string.\n ","Return New String(array)\n End Function\n\nEnd Module\n\n","Output","\n\nSam\nPerls\n\nVB.NET","This function,"," which uses the ToCharArray constructor, is somewhat faster and less memory-intensive than a version that uses the Substring method multiple times. It cuts down on the number of new string instances allocated. ","Tip: ","In performance analysis, eliminating string allocations is often a clear win. Using ToCharArray here helps.","Warning: ","This function has a limitation. It won't correctly process names that have multiple uppercase letters in them.","So: ","The name \"McChrystal\" would be changed to \"Mcchrystal\" if the input string was \"mcchrystal\". This could be corrected with a Dictionary.","Dictionary ","dictionary-vbnet","ToTitleCase."," Instead of this custom implementation, you could use the ToTitleCase function from the .NET Framework. With ToTitleCase, every word is capitalized, which is a slightly different behavior from the implementation above. ","ToTitleCase ","totitlecase-vbnet","Summary."," We learned one way you can uppercase only part of a string, such as the first letter. You could develop more sophisticated logic to uppercase or change other parts of the character array. The approach would be equally effective. ","Note: ","This method could be used to clean up poorly formatted character data, as from a text file or database.","ins","class","adsbygoogle","data-ad-client","ca-pub-4712093147740724","data-ad-slot","3679700504","data-ad-format","link","ins","class","adsbygoogle","data-ad-client","ca-pub-4712093147740724","data-ad-slot","6227126509","data-ad-format","auto"]

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