image display issue

Hi Anu,

To resolve the issue of displaying images stored as varbinary in your DevExpress MVC grid, you need to ensure that the binary data is properly converted to a format that can be rendered as an image. The BinaryImage column type expects a URL or a base64 string representation of the image.

Here’s how you can achieve this:

1. Convert the Binary Data to Base64: In your controller, convert the byte array to a base64 string.

2. public string ConvertToBase64(byte[] imageBytes)
   {
       return Convert.ToBase64String(imageBytes);
   }
   

3. Modify Your Data Source: When populating your grid's data source, ensure that you convert the image bytes to a base64 string.

4. var data = yourDataSource.Select(item => new 
   {
       // Other properties
       Image = ConvertToBase64(item.ImageData) // Assuming ImageData is your varbinary field
   }).ToList();
   

5. Update the Grid Column: In your grid settings, set the Image column to use the base64 string.

6. settings.Columns.Add("Image", MVCxGridViewColumnType.BinaryImage);
   

7. Set the Image URL: Ensure that the grid is set to render the image correctly by specifying the image URL format.

By following these steps, your grid should display the actual images instead of "System.byte[]". If you continue to face issues, ensure that the data binding is correctly set up and that the image data is being retrieved properly from the database.

Hello Anu,

To get it working, you need to check a couple of things:

1. Ensure that the binary data is in the correct format.
2. Properly configure your DevExpress column as shown below:
3. Ensure that the FieldName specified ("Image") matches the field in your data source that holds the binary data.

@Html.DevExpress().GridView(settings =>
{
    settings.Name = "gridView";
    settings.Columns.Add(column =>
    {
        column.FieldName = "Image";
        column.ColumnType = MVCxGridViewColumnType.BinaryImage;
        var properties = column.PropertiesEdit as BinaryImageEditProperties;
        if (properties != null)
        {
            properties.ImageHeight = 100;
            properties.ImageWidth = 100;
        }
    });
    settings.Bind(Model);
}).Bind(Model).GetHtml()