How to call a C# Class from a C# Form -
this class:
using system; using system.collections.generic; using system.text; namespace num2wrd { public class numbertoenglish { public string changenumerictowords(double numb) { string num = numb.tostring(); return changetowords(num, false); } public string changecurrencytowords(string numb) { return changetowords(numb, true); } public string changenumerictowords(string numb) { return changetowords(numb, false); } public string changecurrencytowords(double numb) { return changetowords(numb.tostring(), true); } private string changetowords(string numb, bool iscurrency) { string val = "", wholeno = numb, points = "", andstr = "", pointstr = ""; string endstr = (iscurrency) ? ("only") : (""); try { int decimalplace = numb.indexof("."); if (decimalplace > 0) { wholeno = numb.substring(0, decimalplace); points = numb.substring(decimalplace + 1); if (convert.toint32(points) > 0) { andstr = (iscurrency) ? ("and") : ("point");// separate whole numbers points/rupees endstr = (iscurrency) ? ("rupees " + endstr) : (""); pointstr = translaterupees(points); } } val = string.format("{0} {1}{2} {3}", translatewholenumber(wholeno).trim(), andstr, pointstr, endstr); } catch { ; } return val; } private string translatewholenumber(string number) { string word = ""; try { bool beginszero = false;//tests 0xx bool isdone = false;//test if translated double dblamt = (convert.todouble(number)); //if ((dblamt > 0) && number.startswith("0")) if (dblamt > 0) {//test 0 or digit 0 in nuemric beginszero = number.startswith("0"); int numdigits = number.length; int pos = 0;//store digit grouping string place = "";//digit grouping name:hundres,thousand,etc... switch (numdigits) { case 1://ones' range word = ones(number); isdone = true; break; case 2://tens' range word = tens(number); isdone = true; break; case 3://hundreds' range pos = (numdigits % 3) + 1; place = " hundred "; break; case 4://thousands' range case 5: case 6: pos = (numdigits % 4) + 1; place = " thousand "; break; case 7://millions' range case 8: case 9: pos = (numdigits % 7) + 1; place = " million "; break; case 10://billions's range pos = (numdigits % 10) + 1; place = " billion "; break; //add case options above billion... default: isdone = true; break; } if (!isdone) {//if transalation not done, continue...(recursion comes in now!!) word = translatewholenumber(number.substring(0, pos)) + place + translatewholenumber(number.substring(pos)); //check trailing zeros if (beginszero) word = " , " + word.trim(); } //ignore digit grouping names if (word.trim().equals(place.trim())) word = ""; } } catch { ; } return word.trim(); } private string tens(string digit) { int digt = convert.toint32(digit); string name = null; switch (digt) { case 10: name = "ten"; break; case 11: name = "eleven"; break; case 12: name = "twelve"; break; case 13: name = "thirteen"; break; case 14: name = "fourteen"; break; case 15: name = "fifteen"; break; case 16: name = "sixteen"; break; case 17: name = "seventeen"; break; case 18: name = "eighteen"; break; case 19: name = "nineteen"; break; case 20: name = "twenty"; break; case 30: name = "thirty"; break; case 40: name = "fourty"; break; case 50: name = "fifty"; break; case 60: name = "sixty"; break; case 70: name = "seventy"; break; case 80: name = "eighty"; break; case 90: name = "ninety"; break; default: if (digt > 0) { name = tens(digit.substring(0, 1) + "0") + " " + ones(digit.substring(1)); } break; } return name; } private string ones(string digit) { int digt = convert.toint32(digit); string name = ""; switch (digt) { case 1: name = "one"; break; case 2: name = "two"; break; case 3: name = "three"; break; case 4: name = "four"; break; case 5: name = "five"; break; case 6: name = "six"; break; case 7: name = "seven"; break; case 8: name = "eight"; break; case 9: name = "nine"; break; } return name; } private string translaterupees(string rupees) { string cts = "", digit = "", engone = ""; (int = 0; < rupees.length; i++) { digit = rupees[i].tostring(); if (digit.equals("0")) { engone = "zero"; } else { engone = ones(digit); } cts += " " + engone; } return cts; } } } form contains 2 textboxes (textbox1 , textbox2) , button(button1). want type amount in numbers in textbox1 , click on button. amount entered in numbers in textbox1 has converted text , appear in textbox2. functions convert in above c# class file. new student. can me in solving problem.
you have create object 'numbertoenglish' class , use in form1.cs way
public partial class form1 : form { numbertoenglish neobj = new numbertoenglish(); public form1() { initializecomponent(); } private void button1_click(object sender, eventargs e) { textbox2.text = neobj.changecurrencytowords(convert.todouble(textbox1.text)); } }
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