about window form text box problem

Question

i have issue in textbox i have two text box suppose in second textbox i have value=100.12 now i want to remove only .12 from this value after enter in first textbox with (-) or (+) sign if i used (-) sign then minus from second textbox value if i used (+)sign then plus in second textbox value please help me demo 1. -12 2. 100.12 =100 1. +.12 2. 100.12 =100.24 not compulsory that first textbox value start with decimal with sign may be decimal or may be integer

Amit Gupta · Answer

Hey Jitender You can try IndexOf() function to detect whether the value contains .(decimal value) or not and then perform your operation. Try this var _operator = textBox1.Text.Substring(0 1); // extract the operator var value = textBox1.Text.Substring(1); // extract the value var second = Convert.ToDecimal(textBox2.Text); if (value.IndexOf(.) == -1) value = . + value; //if decimal not found insert it as per your requirement decimal result = 0; if (_operator == +) result = second + Convert.ToDecimal(value); else result = second - Convert.ToDecimal(value); textBox3.Text = result.ToString(); Hope it helps :)

Khaja Moizuddin · Answer

http://stackoverflow.com/questions/13062481/how-to-remove-decimal-part-from-a-number-in-c-sharp https://msdn.microsoft.com/en-us/library/system.decimal.truncate(v=vs.110).aspx