Avoid Refreshing of Master Page

The refreshing of master page is a big problem for .NET developers, if you have placed a tree kind of menu in your website than if your master page refreshes every time than this is not a good thing for your website. So, to overcome this problem you can use frameset and iframe.

1  <frameset>

2       <div style="width:100%;">

3       <div style="width:35%; height:auto; float:left;">

4        <iframe src="Default2.aspx" height="auto" width="250px;"></iframe>

5        </div>

6        <div style="height:auto; width:65%; float:left;"></div>

7        <iframe id="iframe2" name="iframe2">

8         

9         </iframe>

1        </div>

1      </frameset>

If you a designing the menu in left side of your page than the first iframe should contain the src of the page which contains menu and in the page which contains menu will have target="iframe2" in anchor tag’s property like this :

<a href="Default3.aspx" id="dd" title="page" target="iframe2" style="color:Navy;">Title</a>

Master Page and IFrame

Master Page :

Master page reduces the code of a programmer because it comes with such features that we do not need to write the same code on many pages. If your website is using the same design on most of the pages than you can write the design code and programming on master page and place a content placeholder for other pages, by using this there is no need to write repetative codes. All the other pages are going to be shown in that content placeholder, you just simply need to call the master page on other pages.


IFrame :

Iframes are completely HTML part, it is also a very useful feature. If you are using the same kind of design an more than one page, than write the commom code on a separate page and call that page using iframe like this -

<iframe src="page.htm" height="55px" width="100%" frameborder="0"></iframe>

Note : Sometimes when we are using tree menu then we see that our master page gets refresh each time when we click on the menu and the menu goes in it's starting stage. To avoid these kind of problem it is usefull to use iframe by placing the menu in separate iframe.

Taking a Snap Shot of screen in .NET

Introduction: Here I need to take a snap shot my screen with my web application on just a button click.

Requirement: For this I need only a Button, by clicking on that the snap shot of screen is taken and saved                            automatically.

Namespaces Required:

using System.Drawing;

using System.Drawing.Imaging;

Click event of Button:

        Bitmap bitmap = new Bitmap(1000, 1000); //declaring size of snap
        Graphics graphics = Graphics.FromImage(bitmap as System.Drawing.Image);
        graphics.CopyFromScreen(0, 0, 0, 0, bitmap.Size);
        bitmap.Save(@"c:\Snapshot\screenshot1.bmp", ImageFormat.Bmp); //Path to save image

Result:  
        This code will save the snap shot of screen to the location defined in the code.

Fade background screen while loading

CSS:-

<style>
   .overlay 
{
position: fixed;
background-image:url('../images/loadingnew.gif');
background-repeat:no-repeat;
background-position:center;
background-color:Black;
top: 0px;
left: 0px;
width: 100%;
height: 100%;
opacity: 0.2;
-moz-opacity: 0.2;
filter: alpha(opacity=20);
-ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=20)";
z-index: 10000;
}</style>


Now at your design page just use a Update Progress like this- 

  <asp:UpdateProgress ID="UpdateProgress2" runat="server" DynamicLayout="true">
          <ProgressTemplate>
               <div class="overlay"></div>
          </ProgressTemplate>
        </asp:UpdateProgress>

Don't forget to declare ScriptManager in your design page, and place your controls in UpdatePanel.
On the click event of button use this code-

        System.Threading.Thread.Sleep(2000);