Is the following code is correct for calculate totalprice?but i got error....

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Is the following code is correct for calculate totalprice?but i got error....

can anyone help?

C#

protected string TP()

   {
       float totalprice = 0;
       foreach (GridViewRow rowitem in GridView1.Rows)
       {
           Label price = (Label)(rowitem.Cells[4].FindControl("price"));
           TextBox txtquantity = rowitem.Cells[3].FindControl("quantity");
           float price = float.Parse(price.Text);
           int quantity = int.Parse(txtquantity.Text);
           totalprice = price * quantity;
       }

       lbltprice.Text = totalprice.ToString();


   }

Posted 1-Dec-11 21:53pm

sathiyak

Updated 1-Dec-11 21:56pm

D K N T H

v2

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Prince Antony G 2-Dec-11 3:55am

which error have you faced, please provide.

D K N T H 2-Dec-11 3:56am

added code pre tag

D K N T H 2-Dec-11 3:58am

what kind of error did you got?

sathiyak 2-Dec-11 3:58am

Error 3 Cannot implicitly convert type 'float' to 'System.Web.UI.WebControls.Label'
this comes................

Prince Antony G 2-Dec-11 5:04am

becz it cant take the value from label so only that error comes..If u check with breakpoint,u will identify that error.

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D K N T H · Answer 1 · 2011-12-01T22:00:00

try this,

C#

protected string TP()
 
    {
        float totalprice = 0;
        foreach (GridViewRow rowitem in GridView1.Rows)
        {
            Label price = (Label)(rowitem.Cells[4].FindControl("price"));
            TextBox txtquantity = rowitem.Cells[3].FindControl("quantity");
            float price = float.Parse(price.Text);
            int quantity = int.Parse(txtquantity.Text);
           totalprice += price * quantity;
        }
 
        lbltprice.Text = totalprice.ToString();
 

    }

hope it helps

thanks

thatraja · Answer 2 · 2011-12-01T22:20:00

There are 2 variables with same name price, so rename any one

C#

protected string TP()

   {
       float totalprice = 0;
       foreach (GridViewRow rowitem in GridView1.Rows)
       {
           Label price1 = (Label)(rowitem.Cells[4].FindControl("price"));//price1
           TextBox txtquantity = rowitem.Cells[3].FindControl("quantity");
           float price = float.Parse(price1.Text);//price1
           int quantity = int.Parse(txtquantity.Text);
           totalprice = price * quantity;
       }

       lbltprice.Text = totalprice.ToString();


   }

Prince Antony G · Answer 3 · 2011-12-01T22:59:00

Try this
1.Change the Variable name price to price1.
2.Cells[4] and Cells[3] changed into Cells[0].
For myself I got the Output.

C#

protected void  TP()
   {
       float totalprice = 0;
       foreach (GridViewRow rowitem in GridView1.Rows)
       {
           Label price1 = (Label)(rowitem.Cells[0].FindControl("price"));
           TextBox txtquantity =(TextBox) (rowitem.Cells[0].FindControl("quantity"));
           float price = float.Parse(price1.Text);
           int quantity = int.Parse(txtquantity.Text);
           totalprice = price * quantity;
       }

       lbltprice.Text = totalprice.ToString();


   }

Is the following code is correct for calculate totalprice?but i got error....

3 solutions

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