RDLC - ReportViewer Control

Kartmen 20 Reputation points

Is there any documentation on how RDLC calculates text sizes? In the designer it's a control and thus is rendered using the graphic class. But in the preview the text looks different. Is there any way to know what dimensions the text will have in the preview?

Microsoft Technologies based on the .NET software framework.
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  1. Hui Liu-MSFT 23,216 Reputation points Microsoft Vendor

    Hi,@Kartmen. Welcome to Microsoft Q&A Forum.

    RDLC uses GDI+ (Graphics Device Interface) for rendering, and the text rendering in RDLC reports can sometimes vary from what you see in the report designer. This discrepancy can occur due to differences in rendering engines, font rendering, and rendering options.

    RDLC reports are designed to be relatively simple, and while there is documentation on how to use RDLC reports, it doesn't go into great detail on the inner workings of text rendering。

    Text Rendering Engine: The RDLC rendering engine may not have the same advanced text rendering capabilities as a full desktop publishing or design application. Therefore, small discrepancies in text rendering are not uncommon.

    If you need precise control over text rendering, consider using a more advanced reporting tool or library that provides greater control over the rendering engine. Tools like SQL Server Reporting Services (SSRS) or third-party reporting libraries often offer more extensive options for customizing text rendering.

    While RDLC is suitable for many basic reporting needs, it may not be ideal for complex formatting or precise control over text rendering, especially when fine-tuning is required.

    You could also try to refer to the similar questions below to see if they help you.

    Auto-adjust of font size in an RDLC?

    How to auto reduce font size if it is too long over fixed textbox in rdlc report

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