How to Lock Table Header and First Column with JavaScript?

Locking Table Header and First Column with JavaScript

Freezing table panes is a common requirement in spreadsheets and tables, allowing users to scroll without losing context by locking specific rows or columns. While CSS lacks the capability to lock table elements, JavaScript offers a solution.

JavaScript Solution

To achieve this functionality, a JavaScript plugin such as fixed-table-rows-cols can be employed. This open-source plugin provides a simple solution to create scrollable tables with fixed table headers and columns.

The plugin converts a well-formatted HTML table into a scrollable table with fixed columns and headers. Its usage is straightforward, as demonstrated below:

<code class="javascript">$('#myTable').fxdHdrCol({
    fixedCols    : 3,       /* 3 fixed columns */
    width        : "100%",  /* set the width of the container (fixed or percentage)*/
    height       : 500      /* set the height of the container */
});</code>

The fixedCols option specifies the number of columns to lock, while the width and height options control the container's dimensions. To lock the first row and first column, set fixedCols to 1.

By utilizing this plugin, developers can easily implement table locking functionality with a few lines of code, ensuring that users can navigate through large datasets without losing sight of critical information.

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