sum of textbox values in asp.net

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sum of textbox values in asp.net.This is My Code

C#

decimal num = Convert.ToDecimal(txtcustomot.Text);
         decimal num2 = Convert.ToDecimal(txtAirfreight.Text);
         decimal num3 = Convert.ToDecimal(txtDocument.Text);
         decimal num4 = Convert.ToDecimal(txtcompt.Text);
         decimal num5 = Convert.ToDecimal(txtairlanka.Text);
         decimal num6 = Convert.ToDecimal(txtcexp.Text);
         decimal num8 = num + num2 + num3 + num4 + num5 + num6;
         lbltotal0.Text = num8.ToString();

I want to handle null value Textbox.exsample txtcustomot.Text is null code not working how to fix this one.any one can help me,

Thank You

How to pass the null value store procedure
parameters[1].Value = Decimal.Parse(txtAirfreight.Text);

This code is not working.

Posted 30-Sep-13 22:31pm

Hasitha Wijesooriya

Updated 30-Sep-13 23:12pm

v2

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4 solutions

Solution 5

Hey there,

You could try this example for all your decimal variable assignments:

C#

String.IsNullOrEmpty(txtAirfreight.Text.Trim()) ? 0 : Convert.ToDecimal( txtAirfreight.Text.Trim());

to avoid the Exception.

Hope it helps

Azee...

Posted 30-Sep-13 22:42pm

Azee

Solution 2

Textbox.text=null

but convert to decimal of it maynot be zero

Posted 30-Sep-13 22:36pm

Kamran Ayati

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Zafar A khan · Accepted Answer · 2013-09-30T22:37:00

Solution 3

try this

C#

decimal num =0,num2=0,num3=0,num4=0,num5=0,num6=0;
         decimal.TryParse(txtcustomot.Text,out num);
         decimal.TryParse(txtAirfreight.Text,out num2);
         decimal.TryParse(txtDocument.Text,out num3);
         decimal.TryParse(txtcompt.Text,out num4);
         decimal.TryParse(txtairlanka.Text,out num5);
         decimal.TryParse(txtcexp.Text,out num6);
         decimal num8 = num + num2 + num3 + num4 + num5 + num6;
         lbltotal0.Text = num8.ToString();

Posted 30-Sep-13 22:37pm

Zafar A khan

Comments

[no name] 1-Oct-13 5:17am

How to pass the null value store procedure
parameters[1].Value = Decimal.Parse(txtAirfreight.Text);

This code is not working.

Zafar A khan 1-Oct-13 5:43am

decimal proval=0;
decimal.TryParse(txtAirfreight.Text,out proval);
parameters[1].Value = (proval==0)?"NULL":proval;

OriginalGriff · Accepted Answer · 2013-09-30T22:36:00

Solution 1

Don't use Convert: use decimal.TryParse instead:

C#

decimal num;
decimal.TryParse(txtcustomot.Text, out num);

If it fails, it will leave zero in the num variable (and return false, so you could report a problem if necessary)

Posted 30-Sep-13 22:36pm

OriginalGriff