Connect to Sql Server database and retrieve themes

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Hi
I have a task here which deals with retrieving Images from Sql server database and display them in a div. I am currently using Jquery for displaying the images in a div. My task is to connect the Jquery function in such a way that themes should change on button click. Code for that goes here. I would be thankful for the help.

aspx:

XML

aspx:

<script>

style type="text/css">

     #yu {
    width:300px;
    height:420px;
       }

    p {
    font-family:Verdana;
    font-weight:bold;
    font-size:11px
    }
     </style>


 <script language="javascript" type="text/javascript">
   function changeDivImage() {
         var imgPath = new String();
         imgPath = document.getElementById("yu").style.backgroundImage;
         document.getElementById("yu").style.backgroundImage = "url(charttheme/blue.jpg)";
         }

</script>

<body>
<div></div>

<input type="button" value="preview" onclick="changeDivImage()" />
</body>

Posted 1-Oct-12 1:08am

Raghavanand

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Ahmed Mandur 1-Oct-12 9:54am

Don't forget to set an id for your div and make it like this to be able to deal with it
<div id="yu"></div>
Regards,

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Ahmed Mandur · Accepted Answer · 2012-10-01T03:51:00

Hi,
I think that i can't get your question as you mean it sorry for that
but if do u want to change the background image of DIV and you have the images URL in your Database
so the best solution for me right now is to make the div run at server and start to set the style from the code behind

this is the ASPX page

XML

<body>
    <form id="form1" runat="server">
    <div id="yu" runat="server"></div>
    <asp:Button ID="Button1" runat="server" Text="Button" onclick="Button1_Click" />

    </form>
</body>

And this is the code of click event of the Button1

C#

yu.Style.Add("background-image", "url('imgs/S(1).jpg')");
yu.DataBind();

you can change this imgs/S(1).jpg with the Image URL you have in your Database

Another Way to set the background image with Javascript code

you can modify the function called changeDivImage to be able to change the image url dynamically by make it like this

XML

<script language="javascript" type="text/javascript">
 function changeDivImage(imgUrl) {
     var imgPath = new String();
     imgPath = document.getElementById("yu").style.backgroundImage;
     document.getElementById("yu").style.backgroundImage = "url('" + imgUrl + "')";
 }

</script>

then from the code behind you have to call the image URL you want like this to fire the javascript Function

C#

string ImgPath = "the retrieved image URL from the Database";
     ScriptManager.RegisterStartupScript(this, this.GetType(), "starScript", "changeDivImage('" + ImgPath + "');", true);

Regards,
Ahmed Mandour