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Editorial Team
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Asked: 2026-05-28T07:32:02+00:00

I want to access (and then modify) the properties for the image field (s)

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I want to access (and then modify) the properties for the image field(s) in Sitecore (esp. interested in ‘Dimensions’ and ‘Keep Ratio’ check box) via a code-behind file (blah.ascx.cs).
[This to ensure that all the images have a consistent size, when displayed in the sublayouts (irrespective of the original size)]

I know these properties can be added manually, but for the case where content authors “forget” to add the dimensions for image(s), I don’t want my sublayouts to screw up. Hence, I need a check for that.

Is there a way to access and then modify these properties via code?

Here is an image that shows exactly what I want to access and modify via code:

enter image description here

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1 Answer

  1. Editorial Team

    If you’re using an <asp:Image ... /> and binding the ImageUrl via C#, you can access the ImageField in C# and get the properties, like so:

    Sitecore.Data.Fields.ImageField field = item.Fields["My Image Field"];
// you can now access:
//   field.Width
//   field.Height etc...

    If you’re using a <sc:Image ... /> renderer or a regular <sc:FieldRenderer ... /> I would recommend you use <sc:FieldRenderer ... /> as the image parameters only work on that, as documented here.

    Here’s a sample snippet:

    <sc:FieldRenderer FieldName="My Image Field" Parameters="w=100&h=200&as=1" runat="server" />
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