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<!DOCTYPE html>
<html lang="en">
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<meta charset="UTF-8">
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<title>Tableau Multi-Select Parameter Extension</title>
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<h1>Tableau Multi-Select Parameter Extension</h1>
<p>The Tableau Multi-Select Parameter extension enhances your data analysis capabilities by concatenating selected values from a filter, delimited by '|', and updating them into a parameter. This parameter can then be used in custom SQL queries or calculated fields, providing greater flexibility in data manipulation and visualization.</p>
<h2>How to Use:</h2>
<ol>
<li><strong>Download the Extension</strong>: Obtain the extension from the following URL:
<a href="https://biplovkarna017.github.io/tableau-multiselect-parameter/MultiSelectParameter.trex">MultiSelectParameter.trex</a>
</li>
<li><strong>Open Your Tableau Dashboard</strong>: Navigate to your desired dashboard in Tableau.</li>
<li><strong>Add the Extension</strong>:
<ul>
<li>Drag the "Extension" object from the bottom left section of the Tableau interface to your dashboard.</li>
<li>Click "Access Local Extensions".</li>
<li>Select the <code>MultiSelectParameter.trex</code> file from your download directory.</li>
</ul>
</li>
<li><strong>Configure the Extension</strong>:
<ul>
<li>The Configure Extension dialog box will appear.</li>
<li>From the "Select Filter" dropdown, choose the filter you want to use as a parameter.</li>
<li>From the "Select Parameter" dropdown, select the parameter where the concatenated filter values will be stored.</li>
<li>Click "Save Settings".</li>
</ul>
</li>
</ol>
<p>Once configured, any selections made on the filter will be concatenated and stored in the selected parameter. You can then use this parameter in your custom SQL queries (e.g., <code>COLUMN_NAME REGEXP <<ParameterName>></code>) or calculated fields (e.g., <code>REGEXP_MATCH([COLUMN_NAME], [ParameterName])</code>).</p>
<p>This extension streamlines the process of dynamic parameter creation and enables more complex and customizable data queries within Tableau.</p>
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