In this article we will know
how to find total sum of values present in database into a Gridview.The total
sum will be appeared in the footer of the gridview. Remember in gridview add
ShowFooter="True".Add
a TemplateField within this field add FooterTemplate.
Table structure
Default.aspx code
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Total
Count</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:GridView ID="GridView1" runat="server"
DataKeyNames="empname" AllowPaging="true" PageSize="10"
AutoGenerateColumns="False" CellPadding="4"
GridLines="None"
ShowFooter="True">
<Columns>
<asp:BoundField DataField="empname" HeaderText="Name" />
<asp:BoundField DataField="salary" HeaderText="Salary" />
<asp:TemplateField>
<FooterTemplate>
Total salary:Rs.
<%#totalsal()%>
</FooterTemplate>
</asp:TemplateField>
</Columns>
<RowStyle
BackColor="#ffffcc" ForeColor="Red" />
<FooterStyle
BackColor="#ccffcc" Font-Bold="True" ForeColor="#cc3300" />
<HeaderStyle
BackColor="Aqua"
Font-Bold="True"
ForeColor="#993300" />
</asp:GridView>
</div>
</form>
</body>
</html>
Default.aspx.vb code
Imports
System.Data
Imports
System.Data.SqlClient
Imports
System.Configuration
Partial Class _Default
Inherits
System.Web.UI.Page
Dim strConnString As String =
System.Configuration.ConfigurationManager.ConnectionStrings.Item("ConnectionString").ToString()
Dim str As String
Dim com As
SqlCommand
Dim sqlda As
SqlDataAdapter
Dim ds As
DataSet
Protected Sub
Page_Load(ByVal sender
As Object, ByVal
e As System.EventArgs)
Handles Me.Load
bind()
End Sub
Sub bind()
Dim con As New SqlConnection(strConnString)
con.Open()
str =
"select * from employee"
com =
New SqlCommand(str, con)
sqlda =
New SqlDataAdapter(str, con)
ds =
New DataSet
sqlda.Fill(ds,
"employee")
GridView1.DataSource = ds
GridView1.DataMember = "employee"
GridView1.DataBind()
con.Close()
End Sub
Function totalsal() As String
Dim con As New SqlConnection(strConnString)
str =
"SELECT SUM(salary) from employee"
com =
New SqlCommand(str, con)
con.Open()
Dim Totalsalary As Decimal = Convert.ToDecimal(com.ExecuteScalar())
con.Close()
con.Dispose()
com.Dispose()
Return String.Format(Totalsalary)
End Function
Protected Sub
GridView1_PageIndexChanging(ByVal sender
As Object,
ByVal e As
System.Web.UI.WebControls.GridViewPageEventArgs)
Handles GridView1.PageIndexChanging
GridView1.PageIndex = e.NewPageIndex
bind()
End Sub
End Class
Output
Thanks for reading