ASP.NET

Dim config As System.Configuration.Configuration<br />
Dim appSetting As New System.Configuration.AppSettingsSection<br />
<br />
config = System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration("~")<br />
appSetting = config.GetSection("appSettings")<br />
<br />
'To add new key<br />
appSetting.Settings.Add("[KEY_NAME]", "[VALUE]")<br />
<br />
'To change exists key<br />
appSetting.Settings("[KEY_NAME]").Value = "[VALUE]"<br />
<br />
<br />
config.Save()

Venkatesh MookkanI inherited the Label control and created my own control with Click event. But it not working.

szukuro wrote:

You should also inherit from the IPostBackEventHandler interface and implement the RaisePostBackEvent so that it raises your click event.

szukuro wrote:

this.Attributes.Add("onclick", Page.ClientScript.GetPostBackEventReference(this, this.ClientID));

Venkatesh MookkanHere "Page" throws NullReferenceException. I have already tried it and removed it.

<DefaultProperty("Text"), ToolboxData("<{0}:EglLabel runat=server></{0}:EglLabel>"), _<br />
    Description("Eagle Label")> _<br />
    Public Class EglLabel<br />
        Inherits Label<br />
        Implements IPostBackEventHandler<br />
<br />
<br />
        Public Event Click As EventHandler<br />
<br />
<br />
        Protected Overridable Sub OnClick(ByVal e As EventArgs)<br />
            RaiseEvent Click(Me, e)<br />
        End Sub<br />
<br />
        Public Sub RaisePostBackEvent(ByVal eventArgument As String) Implements System.Web.UI.IPostBackEventHandler.RaisePostBackEvent<br />
            OnClick(EventArgs.Empty)<br />
        End Sub<br />
<br />
        Public Sub New()<br />
            Attributes.Add("onclick", Page.ClientScript.GetPostBackEventReference(Me, ClientID))<br />
        End Sub<br />
    End Class

Venkatesh MookkanPublic Sub New()
Attributes.Add("onclick", Page.ClientScript.GetPostBackEventReference(Me, ClientID))
End Sub
End Class