I tried to fetch datas for a particualr user from sql sever database using json data. But its always showing error in the console as:
"Use of getPreventDefault() is deprecated. Use defaultPrevented instead."
And values are not retrieving from the database.
My code is :
Client-side:
<body>
<form id="form1" runat="server">
<table border="0" >
<tr>
<td>
<asp:Label ID= "lblName" runat="server" Text="Name" ></asp:Label>
</td>
<td>
<asp:TextBox ID="txtName" runat="server" Text="" /><br />
</td>
</tr>
<tr>
<td>   </td>
</tr>
<tr>
<td colspan ="2" >
<asp:Button ID="btnShow" Text="Show" runat="server" />
</td>
</tr>
</table>
<hr /><asp:GridView ID="gvUsers" runat="server" AutoGenerateColumns="false" HeaderStyle-BackColor="#3AC0F2"
HeaderStyle-ForeColor="White" RowStyle-BackColor="#A1DCF2">
<Columns>
<asp:BoundField DataField="Username" HeaderText="Username" />
<asp:BoundField DataField="Password" HeaderText="Password" />
</Columns>
</asp:GridView>
</form>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<script type="text/javascript" src="http://cdn.jsdelivr.net/json2/0.1/json2.js"></script>
<script type="text/javascript">
$(function () {
$("[id*=btnShow]").bind("click", function () {
var user = {};
user.Name = $("[id*=txtName]").val();
user.grd = $("[id*=gvUsers]").val();
$.ajax({
type: "POST",
url: "View.aspx/ViewUser",
data: '{user: ' + JSON.stringify(user) + '}',
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (response) {
//alert("User has been added successfully.");
window.location.reload();
}
});
return false;
});
});
</script>
</body>
Server-Side :
<WebMethod()> _
<ScriptMethod()> _
Public Shared Sub ViewUser(user As Users)
Dim grd As GridView
grd = user.grd
'Dim gvUsers As GridView
Dim constr As String = ConfigurationManager.ConnectionStrings("constr").ConnectionString
Using con As New SqlConnection(constr)
Using cmd As New SqlCommand("SELECT * FROM Users Where Username = @Name")
Using sda As New SqlDataAdapter()
Dim dt As New DataTable()
cmd.CommandType = CommandType.Text
cmd.Parameters.AddWithValue("@Name", user.Name)
cmd.Connection = con
sda.SelectCommand = cmd
sda.Fill(dt)
'grd.Visible = True
grd.DataSource = dt
grd.DataBind()
End Using
End Using
End Using
End Sub
End Class
Public Class Users
Public Property Name() As String
Get
Return _Name
End Get
Set(value As String)
_Name = value
End Set
End Property
Private _Name As String
Public Property grd() As GridView
Get
Return _grd
End Get
Set(value As GridView)
_grd = value
End Set
End Property
Private _grd As GridView
End Class
But my datas are not displaying in the webpage. Thank you in advance
This is just because you're using a version of jQuery that caters to older browsers in a slightly-sloppy fashion. The version you're using has this code in it:
As you can see, it does try to use the
defaultPreventedproperty, but then goes on to callgetPreventDefaultif the default hasn't been prevented. So even on browsers with the property, if the default hasn't been prevented, it will call the old function if present.Newer versions of jQuery (2.x, 3.x) don't use
getPreventDefaultanymore. If you want to get rid of the warning, either use a more up-to-date jQuery or hack the one you're using so that it checks for the existence of the property rather than just checking its value.