Spread Windows Forms 14.0
Spread Windows Forms 14.0 Product Documentation / Developer's Guide / Headers / Customizing the Appearance of Headers / Auto Expand Row Headers
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    Auto Expand Row Headers
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    To prevent a header from truncating, users can configure the header to auto increase the row width just like in Excel.

    Spread for Winforms provides support for automatic expansion of the width of the row header labels in order to accommodate the text when users scroll down past the rows (1,000, 10,000, etc.) in a spreadsheet.

    While scrolling across the worksheet, Spread control extends the width of row header to display the row labels completely as per the following rules.