how can I correct my code?

[strawberrysh]

I write this code for showing totalprice in a gridview footer.when this page loaded user input his quantity on textboxes and press a button,after that must see the total price in gridview footer.here is my click event code:(but when I input something in m textboxes and press the button the total price in footer is 0)I used breakpoint and saw the qty is "".how should I correct my code?

protected void Button1_Click(object sender, EventArgs e)
{
if (GridView1.Rows.Count > 0)
{
for (int i = 0; i <= GridView1.Rows.Count - 1; i++)
{
TextBox qty = (TextBox)GridView1.Rows[i].FindControl("textbox2");
Label pr = (Label)GridView1.Rows[i].FindControl("label3");
float total = 0;
if (!string.IsNullOrEmpty(qty.Text))
{
float qty1 = float.Parse(qty.Text);

                float pr1 = float.Parse(pr.Text);
                total = total + (qty1 \* pr1);
            }
            Label t = (Label)GridView1.FooterRow.FindControl("label3");
            t.Text = total.ToString();
        }

    }

[Blue_Boy]

Are you sure that exists control with name textbox2 in every row of gridview?

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[strawberrysh]

yes it is textbox2.i am sure.

[Blue_Boy]

Did you try to specify cell,like this TextBox qty = (TextBox)GridView1.Rows[i].Cells[1].FindControl("textbox2"); Instead index 1 of cell,set cell index which have value of textbox2.

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I Love T-SQL "Don't torture yourself,let the life to do it for you." If my post helps you kindly save my time by voting my post.

modified on Thursday, September 4, 2008 7:50 PM

[strawberrysh]

i try the code like you,but i get the same result,(qty is " ") where is my problem?

[Blue_Boy]

Is textbox2 within template item? Does textbox2 have values after Gridview1 is populated with data?

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I Love T-SQL "Don't torture yourself,let the life to do it for you." If my post helps you kindly save my time by voting my post.

[strawberrysh]

it is in template item.I couldn't understand your meaning in question 2? I used breakpoint but in qty is " ",and the data I intered in textbox wasn't there.

[Blue_Boy]

I have make a sample based on your code: string[] values ={"zero", "one", "two", "three" ,"four"}; GridView1.DataSource = values; GridView1.DataBind(); /*TextBox1 is within ItemTemplate of Gridview1*/ //add values on textbox1 for (int i = 0; i <= GridView1.Rows.Count - 1; i++) { TextBox qty = (TextBox)GridView1.Rows[i].FindControl("Textbox1"); qty.Text = i.ToString(); } string resultvalues = ""; //read values from textbox1 for (int i = 0; i <= GridView1.Rows.Count - 1; i++) { TextBox qty = (TextBox)GridView1.Rows[i].FindControl("Textbox1"); resultvalues += qty.Text + ";"; } and result of variable resultvalues is:0;1;2;3;4;

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I Love T-SQL "Don't torture yourself,let the life to do it for you." If my post helps you kindly save my time by voting my post.