NextReports Designer 7.0 allows to insert an image element to report layout. This element takes an image from a file. All images used by report are kept near that file, so when we publish a report to server from designer, all its images are also uploaded.
Starting with version 7.1 a new report layout element called "Image Sql Column" is added. This will indicate to report layout that at runtime to try to show the actual image that is kept inside database. Sql column must be of type blob or other specific image type used by different databases (for example MS SQL uses varbinary or image).
We create a query by selecting columns from a table (here Photo is our blob column):
When we run the query in designer we will see "blob"string for Photo values:
We create a report from this query:
Inside our database blob field we added different types of images (png, gif, jpeg) and a text file (to test if blob is not a recognizable image). When we export the report to PDF, EXCEL, HTML or RTF we will see actual images stored inside database:
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