Accessing Image Files Stored As Binary Data

Jul 11, 2006

Hi

When images are uploaded and stored directly into a sql database as binary data (eg in the club starter kit) how can those images be accessed and displayed.

When I open the images table in VWD  and select display data, the cells holding the image data hold a <binary data> tag. What I want to be able to do is get at that data, or actually get at the image so that it is displayed. My reason is this, at the moment the only way to access the images in the sql database after they have been uploaded is to log into the website and view them as an administrator of the site. It would be much simpler if I could access the database directly and view the contents of the images table.

Any ideas?

Thanks

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<%@ import Namespace="System.IO" %>
<%@ import Namespace="System.Drawing.Image" %>
<%@ import Namespace="System.Drawing.Bitmap" %>
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Try
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End While
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End Try

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End Function




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GetImageFromDB(2111)
End If
End Sub
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<html>
<head>
</head>
<body>
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In the code sample below, case eLABEL, eENGUNITS works ok. The target SQL field is defined as varchar(50).

The second section is not so happy. It is attempting to write to an SQL field defined as binary(2)



Executing an SQL script to excercise this line results in error:


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where 'foreign' is the name (FieldDef.sFldName) of the SQL field being written.



The c# code composes the following command:



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Code Snippet

case vcidatatype.eLABEL:

case vcidatatype.eENGUNITS:

{


byte[] bbuff = new byte[512];

bbuff = rdr.ReadBytes(FieldDef.iLen);

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vciSqlCommand.Parameters["@data_params"].Value = bbuff;

break;

}

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case vcidatatype.eLANADR:

{


byte[] bbuf = new byte[512] ;

bbuf = rdr.ReadBytes(2);

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vciSqlCommand.Parameters["@data_params"].Value = bbuf;

break;
}





















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