how to divide two numbers in c# [Resolved]

Posted by Tarawatruchika under C# on 5/12/2012 | Points: 10 | Views : 11669 | Status : [Member] | Replies : 7

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i want to divide two numbers and then multiply 20 in result value.

my code is:
mm = Convert.ToInt32(ds.Tables[0].Rows[0][1].ToString());
a = (TextBox)row.FindControl("T1");
m = (float)(Convert.ToInt32(a.Text) / mm) * 20;

for example:
a=20, mm=40
so m should be (20/40)*20=10.

but in programming, divide ("/") give 0 when we try 20/40 instead of 0.5. so i always get value of m is 0 except a=40.
how can i do this? i want m=10, not 0.

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Posted by: Moaa Memo on: 5/12/2012 [Member] Starter | Points: 50

0	hi in windows form app drag 3 text box and one bottm in butom click event write this code double m = Convert.ToDouble(textBox1.Text); double j = Convert.ToDouble(textBox2.Text); double r = Convert.ToDouble((m / j) * 20); textBox3.Text = r.ToString(); Tarawatruchika, if this helps please login to Mark As Answer. \| Alert Moderator

Posted by: Sakthi.Singaravel on: 5/12/2012 [Member] Silver | Points: 25

0	declare variable 'm' as float or double.. Regards, Singaravel M Tarawatruchika, if this helps please login to Mark As Answer. \| Alert Moderator

Posted by: Hariinakoti on: 5/12/2012 [Member] Starter | Points: 25

0	Hi, float m=convet.ToFloat(textbox1.Text); float n=convert.ToFloat(textbox2.Text); float res=convert.ToFloat((m/n)20); textbox3.Text=res.ToString(); Thanks & Regards Hari Tarawatruchika, if this helps please login to Mark As Answer*. \| Alert Moderator

Posted by: Tarawatruchika on: 5/12/2012 [Member] Starter | Points: 25

0	convert.ToFloat is not any method. i got my solution with "double" Tarawatruchika, if this helps please login to Mark As Answer. \| Alert Moderator

Posted by: Tarawatruchika on: 5/12/2012 [Member] Starter | Points: 25

0	i already declared it as a "float". now i declared it as "double". now i got my answer. thanks. :) Tarawatruchika, if this helps please login to Mark As Answer. \| Alert Moderator

Posted by: Tarawatruchika on: 5/12/2012 [Member] Starter | Points: 25

0	thank u. :) declaring m as "double" works. Tarawatruchika, if this helps please login to Mark As Answer. \| Alert Moderator

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