Problem with INSERT

I've made customcontrol with 3 textboxes, dropdownlist and button.

here is action for button:

protected void Button1_Click(object sender, EventArgs e) { SqlDataSource1.InsertCommand ="insert INTO P ( Numer, Opis, Koszt, id_kli) VALUES('" + nr.Text +"'" +"," +"'" + opisTB.Text +"'" +"," +"'" + kosztTB.Text +"'" +"," +"'" + DropDownList1.SelectedValue +"');"; SqlDataSource1.Insert(); Button1.Visible =false; }

the problem is it insert 5 row at once

what should i change.

my db looks like:  P(nr_id(PK), Numer, Opis, Koszt, id_kli);

K(id_kli(PK), Name); 

PS

sorry for my english... 

baran:

I've made customcontrol with 3 textboxes, dropdownlist and button.

here is action for button:

protected void Button1_Click(object sender, EventArgs e)
 {
 SqlDataSource1.InsertCommand ="insert INTO P ( Numer, Opis, Koszt, id_kli) VALUES('" + nr.Text +"'" +"," +"'" + opisTB.Text +"'" +"," +"'" + kosztTB.Text +"'" +"," +"'" + DropDownList1.SelectedValue +"');";
 SqlDataSource1.Insert();
 Button1.Visible =false;
 }

the problem is it insert 5 row at once

what should i change.

my db looks like:  P(nr_id(PK), Numer, Opis, Koszt, id_kli);

K(id_kli(PK), Name); 

First of all, you should be using parameterized SQL statements. The code you have there, with concatenating UI-supplied data to a SQL string to be executed, is quite insecure. It opens you up to a possibleSQL Injection attack.

If you need to insert 5 rows, wouldn't you create a loop in your code, executing the SQL statement 5 times, each time with different parameter values?

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i don't need to insert 5 rows it makes it and i don't know why and how...

i'm noob just getting started

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Hi baran,

In this case, I suspect that this event has been fired several times. Please set a breakpoint to see if it has been fired 5 times. Each time should insert 1 record.