Display Image from Backend Code

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Hi friends,

I need to display image from back-end code.

Here my code:
Events.aspx.cs:

C#

switch (sExtension)
{
    case "docx":
        SLogo = "../assets/images/Events/word_logo.jpg";
        break;
    case "doc":
        SLogo = "../assets/images/Events/word_logo.jpg";
        break;
    case "ppt":
        SLogo = "../assets/images/Events/ppt_logo";
        break;
    case "jpg":
        SLogo = "../assets/images/Events/jpg_logo";
        break;
    case "pdf":
        SLogo = "../assets/images/Events/pdf_logo";
        break;
}

Events.aspx

XML

<img id="logo_img" src="" alt="" />

But in Evets.aspx.cs, I can't access this image control.

I need to access this as, logo_img.src = sLogo;

Posted 18-Nov-13 3:14am

lalitha19

Updated 18-Nov-13 3:27am

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

v3

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Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) · Accepted Answer · 2013-11-18T03:23:00

Solution 1

Use Asp.Net Image[^] Control.

XML

<asp:Image ID="logo_img" runat="server" AlternateText="SomeAlternateTextForImage"></asp:Image>

Now do like below in aspx.cs page.

C#

logo_img.ImageUrl = sLogo;

Posted 18-Nov-13 3:23am

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

Updated 18-Nov-13 3:24am

v2

Comments

lalitha19 18-Nov-13 9:33am

No in backend,the id name is not accepting. that is if i type logo_img,it doesn't show its properties

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 18-Nov-13 10:02am

It is very strange. Have you added the Image control on aspx page as I said?

lalitha19 26-Nov-13 7:30am

yes.. I added img control as you said. but it doesn't add in Events.aspx.designer.cs file.

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 27-Nov-13 0:12am

Then delete this control. Now add one Image control from the ToolBox. Then build the project.

After that try to access it from code behind.