to add and multiply textbox and to again add and multiply

Aug 21 2013 1:13 AM

my code is

using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Data.SqlClient;

public partial class Admin_Default : System.Web.UI.Page
{
REMO sel = new REMO();
DataSet ds = new DataSet();
string s = ConfigurationManager.AppSettings["RM"].ToString();
SqlConnection cn = new SqlConnection();
SqlCommand cd = new SqlCommand();
SqlDataAdapter da = new SqlDataAdapter();
public int se;
public float sl;
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
prr();
sno();
pqice();
txtdate.Text = System.DateTime.Now.ToShortDateString();
}
}

private void sno()
{
// int z = 0;
//ListItem cb = new ListItem();

// ds = sel.GETDS("select Billno from numbeer");
ds = sel.GETDS("select min (Billno) as Billno from numbeer where status='view'");
foreach (DataRow dr in ds.Tables[0].Rows)
{
//ListItem sw = new ListItem();
txtbillno.Text = dr["Billno"].ToString();
//sw.Value = Convert.ToString(z + 1);

}

}
private void pqice()
{
ListItem lik = new ListItem();
// lik.Text = "Select";
DropDownList3.Items.Insert(0, new ListItem("--Select--", "0"));
lik.Value = "0";
for (int se = 1; se <= 700; se++)
{
DropDownList3.Items.Add(Convert.ToString(se));

}

}

private void prr()
{
int s = 0;

ListItem lim = new ListItem();
//lim.Text = "Select";
//lim.Value = "0";
DropDownList1.Items.Add(lim.ToString());
ds = sel.GETDS("select DISTINCT name from demo");
DropDownList1.Items.Insert(0, new ListItem("--Select--", "0"));
foreach (DataRow dr in ds.Tables[0].Rows)
{
ListItem ss = new ListItem();
lim.Text = dr["name"].ToString();
lim.Value = Convert.ToString(s + 1);
DropDownList1.Items.Add(lim.ToString());

}

}

protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
DropDownList2.Items.Clear();
DataSet ds = new DataSet();
string qr = "select weight from demo where name='" + DropDownList1.SelectedValue.ToString() + "'";
ds = sel.GETDS(qr);
ListItem se = new ListItem();
//se.Value = "0";

//se.Text = "Select";
DropDownList2.Items.Insert(0, new ListItem("--Select--", "0"));

foreach (DataRow dr in ds.Tables[0].Rows)
{

ListItem liz = new ListItem();
//liz.Text = "Select";
liz.Value = dr["weight"].ToString();
DropDownList2.Items.Add(liz.ToString());
}

}
protected void DropDownList2_SelectedIndexChanged(object sender, EventArgs e)
{

ListItem sss = new ListItem();
// sss.Text = "Select";
DropDownList2.Items.Insert(0, new ListItem("--Select--", "0"));
DataSet ds = new DataSet();
string sq = "select price from demo where weight='" + DropDownList2.SelectedItem.ToString() + "'";
ds = sel.GETDS(sq);
TextBox1.Text = ds.Tables[0].Rows[0]["price"].ToString();
foreach (DataRow dr in ds.Tables[0].Rows)
{

TextBox1.Text = dr["price"].ToString();

}

}
protected void Button1_Click(object sender, EventArgs e)
{
//string qrt = "insert into cement (Date,BillNo,CustomerName,Address,ProductName,Quantity,Price,Extra) values ('" + txtdate.Text;
//qrt += "','" + txtbillno.Text;
//qrt += "','" + txtcn.Text;
//qrt += "','" + txtad.Text;
//qrt += "','" + DropDownList1.SelectedItem.ToString();
//qrt += "','" + DropDownList2.SelectedItem.ToString();
//qrt += "','" + TextBox1.Text;
//// qrt += "','" + ddprice.SelectedItem.ToString();
//qrt += "','" + txtex.Text;
//qrt += "')";
//sel.Insert(qrt);
//Label10.Visible = true;
//Label10.Text = "Sucess";
//cn = new SqlConnection(s);
//cn.Open();
//string qrs = "insert into product (date,Product,BillNo,ProductName,Quantity,Price,Extra) values ('" + txtdate.Text;
//qrs += "','" + TextBox2.Text;
//qrs += "','" + txtbillno.Text;
////sqrs += "','" + txtcn.Text;
//qrs += "','" + DropDownList1.SelectedItem.ToString();
//qrs += "','" + DropDownList2.SelectedItem.ToString();
//qrs += "','" + TextBox1.Text;
////qrs += "','" + ddprice.SelectedItem.ToString();
//qrs += "','" + txtex.Text;
//qrs += "')";
////sel.Insert(qrs);
//cd = new SqlCommand(qrs, cn);
//cd.ExecuteNonQuery();
//cn.Close();

string up = "update numbeer set status='Viewed' where Billno='" + txtbillno.Text + "'";
sel.Insert(up);

}
protected void Button2_Click(object sender, EventArgs e)
{
txtbillno.Text = "";
txtcn.Text = "";
txtad.Text = "";
DropDownList1.SelectedValue = "Select";
//DropDownList2.SelectedValue = "Select";
TextBox1.Text = "";
txtex.Text = "";

}

protected void DropDownList3_SelectedIndexChanged(object sender, EventArgs e)
{
//txttp.Text ="sum:"+(Convert.ToInt32(DropDownList3.SelectedValue) + Convert.ToInt32(TextBox1.Text));

float sl =(Convert.ToInt32(DropDownList3.Text)* Convert.ToInt32(TextBox1.Text));

txttp.Text = Convert.ToString(sl);
TextBox6.Text = (int.Parse(txttp.Text) * (14.5 / 100)).ToString();

}

protected void txtvat_TextChanged(object sender, EventArgs e)
{
float amm=(float.Parse(txttp.Text)+float.Parse(txtvat.Text));
TextBox3.Text = Convert.ToString(amm);
double guna = int.Parse(TextBox3.Text) * (14.5 / 100);
TextBox4.Text = Convert.ToString(guna);
TextBox5.Text = (amm + guna).ToString();
// TextBox7.Text = (sl + TextBox6.Text);
float amman = (sl+ float.Parse(TextBox6.Text));
TextBox7.Text = Convert.ToString(amman);

}

protected void TextBox4_TextChanged(object sender, EventArgs e)
{
float sgs = int.Parse(TextBox3.Text) + int.Parse(TextBox4.Text);
TextBox5.Text = Convert.ToString(sgs);
}
}

my design is

<table class="style2" align="center" style="border-color: #1d599e; border-style: outset;
border-width: thin; background-color: #D7D7D7; width:50%" >
<tr>
<td style="margin-left: 80px; background:#1d599e;" align="center" colspan="2">
BILLING DETAILS
</td>
</tr>
<tr>
<td colspan="2">

</td>

</tr>

<tr align="left">
<td>

<asp:Label ID="Label1" runat="server" Text="Product" Visible="false"></asp:Label>
</td>
<td>
<asp:TextBox ID="TextBox2" runat="server" Visible="false" Text="Cement"></asp:TextBox>
</td>

</tr>

<tr align="left">

<td>
<asp:Label ID="Label2" runat="server" Text="Date"></asp:Label>

</td>
<td>
<asp:TextBox ID="txtdate" runat="server"></asp:TextBox>
</td>
</tr>

<tr align="left">
<td>
<asp:Label ID="Label3" runat="server" Text="BillNo"></asp:Label>
</td>

<td>
<asp:TextBox ID="txtbillno" runat="server"
></asp:TextBox>

</td>
</tr>

<tr align="left">
<td>

<asp:Label ID="Label4" runat="server" Text="Customer Name"></asp:Label>
</td>
<td>
<asp:TextBox ID="txtcn" runat="server" ></asp:TextBox>
</td>
</tr>

<tr align="left">
<td>
<asp:Label ID="Label5" runat="server" Text="Address"></asp:Label>
</td>
<td>
<asp:TextBox ID="txtad" runat="server"></asp:TextBox>
</td>
</tr>

<tr align="left">
<td>
<asp:Label ID="Label6" runat="server" Text="Brand Name"></asp:Label> </td>
<td>
<asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="True"
onselectedindexchanged="DropDownList1_SelectedIndexChanged" Width="146px">
</asp:DropDownList>
</td>
</tr>
<tr align="left">
<td>
<asp:Label ID="Label7" runat="server" Text="Quantity"></asp:Label>  </td>
<td>

<asp:DropDownList ID="DropDownList2" runat="server" AutoPostBack="True"
onselectedindexchanged="DropDownList2_SelectedIndexChanged" Height="16px"
Width="146px">

<%--<asp:ListItem>Select</asp:ListItem>--%>
</asp:DropDownList>
</td>
</tr>

<tr align="left">
<td>
<asp:Label ID="Label8" runat="server" Text="Product Price"></asp:Label>
</td>
<td>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
</td>
</tr>

<tr>
<td>
<asp:Label ID="Label11" runat="server" Text="Required No"></asp:Label>
</td>
<td>
<asp:DropDownList ID="DropDownList3" runat="server" AutoPostBack="true"
onselectedindexchanged="DropDownList3_SelectedIndexChanged" Width="149px" onhange="return GetTotal()" >
</asp:DropDownList>

<asp:Label ID="Label14" runat="server" Visible="False"></asp:Label>

</td>
</tr>

<tr>
<td>
<asp:Label ID="Label12" runat="server" Text="Price"></asp:Label>
</td>

<td>
<asp:TextBox ID="txttp" runat="server" AutoPostBack="true"
ontextchanged="txttp_TextChanged" ></asp:TextBox>
<asp:TextBox ID="TextBox6" runat="server" ontextchanged="TextBox6_TextChanged" AutoPostBack="true"></asp:TextBox>
</td>

</tr>
<tr>

<td>
<asp:Label ID="Label13" runat="server" Text="Extra"></asp:Label>

</td>

<td>
<asp:TextBox ID="txtvat" runat="server" ontextchanged="txtvat_TextChanged" AutoPostBack="true" ></asp:TextBox>

<asp:TextBox ID="TextBox7" runat="server"></asp:TextBox>

</td>
</tr>

<tr>
<td>

Actual price</td>

<td>
<asp:TextBox ID="TextBox3" runat="server" ontextchanged="TextBox3_TextChanged" AutoPostBack="true" ></asp:TextBox>
</td>

</tr>

<tr align="left">
<td>
<asp:Label ID="Label9" runat="server" Text="VAT"></asp:Label>
</td>

<td>

<asp:TextBox ID="txtex" runat="server"
AutoPostBack="true" Text="(14.5/100)" ReadOnly="True" ></asp:TextBox>

<asp:TextBox ID="TextBox4" runat="server" AutoPostBack="True"
ontextchanged="TextBox4_TextChanged" Visible="False"></asp:TextBox>
</td>
</tr>

<tr align="left">
<td>
<asp:Label ID="Label15" runat="server" Text="Total Amount"></asp:Label>
</td>

<td>

<asp:TextBox ID="TextBox5" runat="server"></asp:TextBox>
</td>
</tr>

<tr>
<td colspan="2" align="center">
<asp:Button ID="Button1" runat="server" Text="Submit" onclick="Button1_Click" />
<asp:Label ID="Label10" runat="server" Text=""></asp:Label>
<asp:Button ID="Button2" runat="server" Text="clear" onclick="Button2_Click" />
</td>

</tr>

</table>

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