CODEWITHSUNDEEP
c#asp.net
Who Me
Who Me

Reputation: 191

Calculate total value of textboxes

I have 8 textboxes that only accept integers. How to calculate the total of value entered by users in each textbox and the result will be showed as a label. After user click on submit button, the the value of the label(result of numbers) will be stored in db. Anyone knows? Thank you. Looking forward to hear from u guys. I got this error : Input string was not in a correct format. At this line: 

int total = 0;
total = int.Parse(TextBox2.Text) + int.Parse(TextBox4.Text) + int.Parse(TextBox6.Text) + int.Parse(TextBox8.Text) + int.Parse(TextBox10.Text) + int.Parse(TextBox12.Text) + int.Parse(TextBox14.Text) + int.Parse(TextBox16.Text);    
Label1.Text = total.ToString();

Upvotes: 0

Views: 23713

Answers (6)

Abdullah
Abdullah

Reputation: 1021

I solved it in this way :

you can create a void then you can call this void any where in your program or any button. 

void Calculate_Total()
{
double txt1 = Convert.ToDouble(txtBox1.Text);
double txt2 = Convert.ToDouble(txtBox2.Text);
double txt3 = Convert.ToDouble(txtBox3.Text);
double txt4 = Convert.ToDouble(txtBox4.Text);
double txt5 = Convert.ToDouble(txtBox5.Text);
double txt6 = Convert.ToDouble(txtBox6.Text);
double txt7 = Convert.ToDouble(txtBox7.Text);
double txt8 = Convert.ToDouble(txtBox8.Text);

double total = txt1 + txt2 + txt3 + txt4 + txt5 + txt6 + txt7 + txt8;

Label1.Text = Convert.Tostring(total);
}

Upvotes: 0

Siva Charan
Siva Charan

Reputation: 18064

You can do this way:-

totalValue = int.Parse(txtBox1.Text) + int.Parse(txtBox2.Text) + int.Parse(txtBox3.Text) + int.Parse(txtBox4.Text) + int.Parse(txtBox5.Text) + int.Parse(txtBox6.Text) + int.Parse(txtBox7.Text) + int.Parse(txtBox8.Text);

Store the value in label

label.Text = totalValue;

OR

foreach (Control c in this.Controls) {
if (c.GetType().Name.ToString()=="TextBox") { totalValue += int.Parse(String.Format("txtBox{0}.Text", count)); } }

foreach (Control c in this.Controls)
{               
        if (c.GetType().Name.ToString()=="TextBox")
       {
                int value = 0;
                if(int.TryParse(((TextBox)c).Text,out value))
                     totalValue += value;
       }
}

Store the value in label

label.Text = totalValue;

Upvotes: 2

Sukanya
Sukanya

Reputation: 1061

Answer to your second question is hold the total value in a parameter and get that value in some other page by using 

    Request.QueryString

for the previous page.. The second way is to keep the total value in a global(static) variable and use it in any of yours page.

Upvotes: 1

hit_sh
hit_sh

Reputation: 27

its simple all you have to do is convert all textbox text to double and than add them with FOR loop.

Upvotes: 2

Jayanga
Jayanga

Reputation: 887

If you can use jQuery add a common class to all the textboxes say "textToCalculate", if the Id of the label is "labelToShowResult"

<script type="text/javascript">
     $(document).ready(function () {
        $('.textToCalculate').change(function() { 
             var total = 0;

             $('.textToCalculate').each(function(){
              total += parseInt(this.value);
             });

             $('#labelToShowResult').val(total);
        });

     });
</script>

Hope this works

Upvotes: 3

Seany84
Seany84

Reputation: 5596

int total = 0;
total = int.Parse(txtBox1.Text) + int.Parse(txtBox2.Text) + int.Parse(txtBox3.Text) + int.Parse(txtBox4.Text) + int.Parse(txtBox5.Text) + int.Parse(txtBox6.Text) + int.Parse(txtBox7.Text) + int.Parse(txtBox8.Text);
Label1.Text = total.ToString();

Upvotes: 1

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