aaronkjackson.com

 private string GetUserPhotoUrl(UserInfo user)
 {
        if (user.Profile.Photo == null || user.Profile.Photo == "-1")
            return user.Profile.PhotoURL;
        else
            return VirtualPathUtility.ToAbsolute("~/LinkClick.aspx") + "?fileticket=" + user.Profile.Photo;
 }

An anonymous user or a user without a profile photo will always get the default ‘no_avatar.gif’ image.

Development, DotNetNuke

In DotNetNuke MVP Module Development: Tip #1 The AutoDataBind Property I suggested to use AutoDatBind to automatically bind up the user control.  However, there are times when no binding should occur.  For example, when a ‘Cancel’ button is clicked the view should not be bound.  AutoDataBind should be disabled when no model is need.

protected void cmdCancel_Click(object sender, EventArgs e)
{
    try
    {
        AutoDataBind = false;
        OnCancel();
    }
    catch (Exception exc)
    {
        Exceptions.ProcessModuleLoadException(this, exc);
    }
}

Development, DotNetNuke, Web Development DotNetNuke, MVP, Tip, WebFormsMVP

Submitting a search box when <Enter> is pressed is a nice usability feature to provide.  Unfortunately, ASP.NET Web Forms and it’s requirement for a single <form> tag breaks this expected behavior when there is more than one submit button on the page.   This can be easily fixed with a JavaScript and JQuery.   Listening to the keydown event on the TextBox the ‘Go’ submit button can be triggered when <Enter> is pressed.

jQuery("#searchTextBox").keydown(function (event) {
    if (event.keyCode && event.keyCode == '13') {
        jQuery("#searchButton").click();
        return false;
    } else {
        return true;
    }
});

Development ASP.NET, jQuery, Quick Tip

The DotNetNuke.Web.Mvp.ModuleViewBase sets a property called ‘AutoDataBind = true’.  As a result the DataBind() method for the page is always called in the Page_PreRenderComplete event. 

If you use the following familiar snippet of code you find that your controls will be data bound twice.  Once when your code calls DataBind() and a second time when it is called during the Page_PreRenderComplete event.

ddlStatus.DataSource = Model.StatusList;
ddlStatus.DataBind();

Here is an example of how to properly bind a DropDownList for an MVP based module.

<asp:DropDownList ID="ddlStatus" runat="server"
    DataSource='<%#Model.StatusList%>'
    DataTextField="Description"
    DataValueField="Id"    SelectedValue='<%#Model.Post.PostStatus %>'>
</asp:DropDownList>

It is important to point out again that you should not call ddlStatus.DataBind() from the code behind.  Calling this is a waste because the AutoDataBind property is going to force everything to rebind again during Page_PreRenderComplete.

Development, DotNetNuke MVP

I needed to offset the current time in MS SQL 2005 for a quick fix. I wanted to make sure the solution would not have to be maintained when daylight savings time changed. Taking the difference between the GETUTCDATE() and GETDATE() functions will generate the server’s current time zone offset from UTC time.

DECLARE @timezoneOffset INT
SELECT @timezoneOffset = (DATEDIFF(hh,GETDATE(),GETUTCDATE())) * -1;
SELECT DATEADD(hh, @timezoneOffset, GETUTCDATE()), GETDATE()

Development SQL, time zone