public string NxtKeyCode(string KeyCode) { byte[] ASCIIValues = ASCIIEncoding.ASCII.GetBytes(KeyCode) ; int StringLength = ASCIIValues.Length ; bool isAllZed = true; bool isAllNine = true; //Check if all has ZZZ.... then do nothing just return empty string. for(int i =0; i < StringLength-1; i++) { if(ASCIIValues[i] != 90) { isAllZed = false; break; } } if(isAllZed && ASCIIValues[StringLength-1] == 57) { ASCIIValues[StringLength-1] = 64; } // Check if all has 999... then make it A0 for(int i =0; i < StringLength; i++) { if(ASCIIValues[i] != 57) { isAllNine = false; break; } } if(isAllNine) { ASCIIValues[StringLength-1] = 47; ASCIIValues[0] = 65; for(int i =1; i < StringLength-1; i++) { ASCIIValues[i] = 48; } } for(int i = StringLength; i > 0; i--) { if(i-StringLength == 0) { ASCIIValues[i-1] +=1; } if(ASCIIValues[i-1] == 58) { ASCIIValues[i-1] = 48; if(i-2 ==-1) { break; } ASCIIValues[i-2] += 1; } else if(ASCIIValues[i-1] == 91) { ASCIIValues[i-1] = 65; if(i-2 ==-1) { break; } ASCIIValues[i-2] += 1; } else { break; } } KeyCode = ASCIIEncoding.ASCII.GetString(ASCIIValues); return KeyCode; } public string NxtKeyCod(string KeyCode) { //int startint = KeyCode.IndexOf("0123456789",0,1); StringBuilder sb = new StringBuilder(); //Regex digitregex = new Regex("^[A-Z])"); //KeyCode = digitregex.Replace(KeyCode, ""); return KeyCode;
NxtKeyCode()
NxtKeyCod()
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