Jignesh Gangajaliya's blog

Validating the SharePoint InputFormTextBox / RichText Editor using JavaScript

Jignesh Gangajaliya — Fri, 12 Mar 2010 09:36:30 GMT

Originally posted on: http://geekswithblogs.net/jigneshg/archive/2010/03/12/validating-the-sharepoint-inputformtextbox--richtext-editor-using-javascript.aspx

In the previous post I mentioned about manipulating SharePoint PeoplePicker control using JavaScript, in this post I will show how to validate the InputFormTextBox contol using custom JavaScript function. Here is the nice post by Becky Isserman on why not to use RequiredFieldValdator or InputFormRequiredFieldValidator with InputFormTextbox.

function ValidateComments()
{

    //retrieve the text from rich text editor.
    var text = RTE_GetRichEditTextOnly("<%= rteComments.ClientID %>");

    if (text != "")
    {
        return true;
    }

    else
    {
        alert('Please enter your comments.');

        //set focus back to the rich text editor.
        RTE_GiveEditorFocus("<%= rteComments.ClientID %>");
        return false;
    }

    return true;
}

<SharePoint:InputFormTextBox ID="rteComments" runat="server" RichText="true" RichTextMode="Compatible" Rows="10" TextMode="MultiLine" CausesValidation="true" ></SharePoint:InputFormTextBox>

<asp:Button ID="btnSubmit" runat="server" Text="Submit" OnClick="btnSubmit_Click" OnClientClick="return ValidateComments()" CausesValidation="true" />

- Jignesh

Using SharePoint PeoplePicker control in custom ASP.NET pages

Jignesh Gangajaliya — Thu, 11 Mar 2010 12:06:22 GMT

Originally posted on: http://geekswithblogs.net/jigneshg/archive/2010/03/11/using-sharepoint-peoplepicker-control-in-custom-asp.net-pages.aspx

I was developing custom ASP.NET page for a SharePoint project, and the page uses SharePoint PeoplePicker control. I needed to manipulate the control on the client side based on the user inputs.

PeoplePicker Picker is a complex control and the difficult bit is that it contains many controls on the page (use the page source viewer to see the HTML tags generated).

So getting into the right bit is tricky and also the default JavaScript functions like, control.disabled; control.focus(); will not work with PeoplePicker control. After some trial and error I came up with the solution to manipulate the control using JavaScript. Here I am posting the JavaScript code snippet to enable/disable the PeoplePicker Control:

The script shown below can be used to set focus back to the PeoplePicker control from custom JavaScript validation function:

 - Jignesh

Is it really possible to achieve multiple inheritance in C# using interfaces? Is it called multiple inheritance when a class implements multiple interfaces?

Jignesh Gangajaliya — Thu, 25 Jun 2009 14:05:23 GMT

Originally posted on: http://geekswithblogs.net/jigneshg/archive/2009/06/25/is-it-really-possible-to-achieve-multiple-inheritance-in-c.aspx

I have heard many times that, multiple inheritance is supported in C# through interfaces hence thought of this post.

Let’s first have a re-look at what inheritance is. In object oriented programming, inheritance is a way to form new classes using classes that have already been defined. Inheritance promotes code reusability in design as the derived class inherits state and behavior from parent class.

When a class inherits from an interface it simply inherits method definitions for which it will provide implementation. Since interface doesn’t have any implementation, the question of code reusability doesn’t arise.

You're not achieving multiple inheritance simply by implementing an interface.
There are some tricks available to achieve the same behavior. E.g. Object Composition, however it is not true multiple inheritance.

- Jignesh

About me

Jignesh Gangajaliya — Wed, 24 Jun 2009 13:57:08 GMT

Originally posted on: http://geekswithblogs.net/jigneshg/archive/2009/06/24/about-me.aspx

I am an experienced Software Developer and Architect, specializing in Microsoft Technologies. I will be posting about my experience with MS technologies, hope, this will make a useful repository of information for the IT folks.

- Jignesh