keypress evets

Question

hi I am trying to do a program which fit for simple calculator as well as mobile phone keypad using delegates in c# windows application. I am trying only for keyboard events for calculator. I am unable to code arithmetic operations in one method which suits for both calculator and mobile phone. please help me..

Danatas Gervi · Answer

Normal 0 false false false EN-US X-NONE HE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:Table Normal; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; text-align:right; mso-pagination:widow-orphan; font-size:11.0pt; font-family:Calibrisans-serif; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:Times New Roman; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin;} You can create a number of handlers of every key event. It will help to separate the logic of key press processing. The key as sender should contain the reference to array of its possible values (it may be simple string – because the string already is the array of chars) and on this event you can easy decide (according state (calculator or phone or sms input) – what char to take – number for calc and phone mode but next char (if sender is the same button) in sms mode.

srinath · Answer

hi I am actually trying for the code which works for muti purpose use. We have button keypress events for all buttons of calculator i.e only numbers and button keypress events for mobile phone keypad where we have multiple keypress for one button like [wxyz9] for button '9'. This is to be done with non-generic events like button_keypress.

Kirtan Patel · Answer

Hey Friend i could not Understood your requirement correctly i understand as You have a Form Which has interface like Calculator and you want to press all that Buttons From Keyboard Right ?

Danatas Gervi · Answer

Normal 0 false false false EN-US X-NONE HE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:Table Normal; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; text-align:right; mso-pagination:widow-orphan; font-size:11.0pt; font-family:Calibrisans-serif; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:Times New Roman; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin;} As simplest (but not the best) way – you should add to you program a Boolean variable SystemInCalculatorMode – and use it to call proper method: if ( SystemInCalculatorMode ) { DoCalcOpreations (); } else { DoDealingOperations (); } But this is only beginning…. When you will need other modes – add an enum like public enum SysMode { Calc  Phone  StopWhatch } And so on - up to the pattern State mashine. ;-)