Skip to main content

Getting tooltip of ASP.NET Radio button in java script.

This post in regards to a question that I have answered on stack overflow. Getting Tool tip of the Radio button in JavaScript. Where user asks why he is not able to get tooltip with document.GetElementById and Client Id of ASP.NET Radio button control like following.

document.getElementById('<%= rbSelectedIds.ClientID %>').title

While answering this question, I have found that there are lots of people not aware about this. So I thought it is a good idea to write a blog post about it.

By default ASP.NET Radio button and check box controls rendered under span when you have attribute like tooltip. Because System.Web.UI.WebControls namespace may render differently in  different browsers and to achieve same functionality in all the browsers they are rendering with span.

There is a complete discussion there one in one of the

Why does ASP.Net RadioButton and CheckBox render inside a Span?

Example : Getting ASP.NET Radio button tooltip in JavaScript:

So let’s take same example as mentioned in that question. Following is my HTML Code. Below is radio button HTML code.
       <ASP:RadioButton runat="server" ID="myRadioButton" 
            Text="Yes" ToolTip="Yes"/>

Now when you run this in browser it will render this radio button is render with surrounded by span like follow.


You can see that title attribute is given to span tag instead of radio button. Now let’s create a ASP.NET button to get tooltip of that radio button like below.

<asp:Button runat="server" Text="Get Tooltip" 

So we are done with button now it’s time to write a JavaScript. Following is a code for JavaScript.
function getToolTip() {
    var sParentElement = document.getElementById("<%=myRadioButton.ClientID%>").parentElement;
    var tooltip = sParentElement.title;

So we are done with code. Now it’s time to run this code in browser. And when you click on button it will show alert with tool tip of radio button.


That’s it. Hope you like it. Stay tuned for more.


Popular posts from this blog

How to create Rest API(Web API) with ASP.NET Core 1.0

Recently Microsoft has released ASP.NET Core 1.0 RC2, I am getting lots of request from readers that about creating Web API. So I thought it will be a good idea to write a blog post about how to create Rest API(Web API) with ASP.NET Core 1.0.

So let’s get started via creating an ASP.NET Core 1.0 Web Application like following.

Once you click on ASP.NET Web Application, It will ask whether you need to create Web Application or Web API application. We are going to Web API so I am going to select Web API Application like following. Please note that in ASP.NET Core 1.0 there is no separate libraries or DLLs required for creating web APIs. This is just a project template.

Now once you click on OK It will create a Web API application with default values controller and program.cs.  As you know Program.cs is now starting point for the ASP.NET Core 1.0 application so It contains all the required configuration and startup items. Following is a code for that.
using System.IO; using Microsoft.Asp…

How to use migration with Entity Framework Core

Entity framework core is  the lightweight, extensible and cross-platform version of Entity Framework. Before some time, Microsoft has Released a new version of Entity Framework RC2. I have written a couple of blog post about Entity framework code first migration earlier for Entity framework 6.0. So there was a couple of request coming for writing a blog post about Entity Framework Core RC2 migration. So I thought it will be a good idea to give an overview how database migration works in Entity Framework Core RC2. This post will cover a basic scenario where we are going to create the database with existing ASP.NET Identity migration and then we are going to create a new model and have that migration applied in the database.

How to use Entity Framework Migrations: Let’s get started, To demonstrate entity framework core migrations, I am going to create a sample core web application like following.

Once we select core application it will appear the following dialog.

Now w…

Creating PDF with ASP.Net MVC and RazorPDF

Update: I have written a new blog post about better approach to create a PDF with mvc- You can find that following location.- A Better Solution to create PDF with Rotativa and ASP.NET MVC
In this post we are going to learn how we can easily create PDF from ASP.Net application with the help of Razor PDF NuGet package.

About Razor PDF:
This NuGet package is created by Al Nyveldt It internally uses ITextSharp an open source PDF convertor library. RazorPDF uses Razor View engine to create iTextXML which is in tern used to produce PDF file. You can get more information about that at below link.

Example(Creating PDF with ASP.Net MVC):
So what we are we waiting for ? Let’s create a simple example. To create example first thing we need to a create and ASP.Net MVC application.