How to bind data in gridview in asp.net using javascript
<connectionStrings>
<add name="conString" connectionString="Data Source=.\SQLExpress;
database=Northwind;Integrated Security=true"/>
connectionStrings>
<asp:GridView ID="gvCustomers" runat="server" AutoGenerateColumns="false" Font-Names="Arial"
Font-Size="10pt" RowStyle-BackColor="#A1DCF2" HeaderStyle-BackColor="#3AC0F2" HeaderStyle-ForeColor = "White">
<Columns>
<asp:BoundField ItemStyle-Width="150px" DataField="CustomerID" HeaderText="CustomerID" />
<asp:BoundField ItemStyle-Width="150px" DataField="ContactName" HeaderText="ContactName" />
<asp:BoundField ItemStyle-Width="150px" DataField="City" HeaderText="City" />
Columns>
asp:GridView>
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
using System.Web.Services;
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
this.BindDummyRow();
}
}
private void BindDummyRow()
{
DataTable dummy = new DataTable();
dummy.Columns.Add("CustomerID");
dummy.Columns.Add("ContactName");
dummy.Columns.Add("City");
dummy.Rows.Add();
gvCustomers.DataSource = dummy;
gvCustomers.DataBind();
}
WebMethod to handle jQuery AJAX
[WebMethod]
public static string GetCustomers()
{
string query = "SELECT top 10 CustomerID, ContactName, City FROM Customers";
SqlCommand cmd = new SqlCommand(query);
return GetData(cmd).GetXml();
}
private static DataSet GetData(SqlCommand cmd)
{
string strConnString = ConfigurationManager.ConnectionStrings["conString"].ConnectionString;
using (SqlConnection con = new SqlConnection(strConnString))
{
using (SqlDataAdapter sda = new SqlDataAdapter())
{
cmd.Connection = con;
sda.SelectCommand = cmd;
using (DataSet ds = new DataSet())
{
sda.Fill(ds);
return ds;
}
}
}
}
Client side
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js">script>
<script type="text/javascript">
$(function () {
$.ajax({
type: "POST",
url: "Default.aspx/GetCustomers",
data: '{}',
contentType: "application/json; charset=utf-8",
dataType: "json",
success: OnSuccess,
failure: function (response) {
alert(response.d);
},
error: function (response) {
alert(response.d);
}
});
});
function OnSuccess(response) {
var xmlDoc = $.parseXML(response.d);
var xml = $(xmlDoc);
var customers = xml.find("Table");
var row = $("[id*=gvCustomers] tr:last-child").clone(true);
$("[id*=gvCustomers] tr").not($("[id*=gvCustomers] tr:first-child")).remove();
$.each(customers, function () {
var customer = $(this);
$("td", row).eq(0).html($(this).find("CustomerID").text());
$("td", row).eq(1).html($(this).find("ContactName").text());
$("td", row).eq(2).html($(this).find("City").text());
$("[id*=gvCustomers]").append(row);
row = $("[id*=gvCustomers] tr:last-child").clone(true);
});
}
script>
2020-01-31