# Check for Value Existence

Checks for the existence of a value in the entire table or in a specified column.

<table data-header-hidden><thead><tr><th width="244" valign="top"></th><th width="302" valign="top"></th></tr></thead><tbody><tr><td valign="top">Table</td><td valign="top">[Data Table] The data table in which the value is checked.</td></tr><tr><td valign="top">Value</td><td valign="top">[Text/Number] The value being checked in the table.</td></tr><tr><td valign="top">Column</td><td valign="top">[Number/Text] The column number or name. If left empty, the check will be performed across the entire table. Numbering starts from 0.</td></tr><tr><td valign="top">Whole Word</td><td valign="top"><p>Word boundaries will be considered during the search.</p><p>For example, with this property enabled, the value "Value" will be found in the text "This Value", but will not be found in the text "This ValueTest".</p><p>If the property is disabled, the value "Value" will be found in both examples.</p></td></tr><tr><td valign="top">Check Type</td><td valign="top"><p>Select the type of check. Possible values:</p><ul><li>"Include" - the value must be present in the table;</li><li>"Exclude" - the value must not be present in the table.</li></ul></td></tr><tr><td valign="top">Reverse Check</td><td valign="top">When checking, swap the input values. When this property is enabled, the presence of values from the table will be checked in the specified property "Value".</td></tr><tr><td valign="top">Extended Check</td><td valign="top"><p>If enabled, the check will use wildcards (Wildcard). For example: "test*", "te?t".</p><p>If the property is disabled, the check will be performed in a simple way and will be faster.</p></td></tr><tr><td valign="top">Case Sensitive</td><td valign="top">If this property is enabled, case sensitivity will be considered during the check; otherwise, it will be ignored.</td></tr><tr><td valign="top">Row Number</td><td valign="top">[Number] The row number of the cell where the value was found.</td></tr><tr><td valign="top">Column Number</td><td valign="top">[Number] The column number of the cell where the value was found.</td></tr><tr><td valign="top">Error Handling Level</td><td valign="top"><p>Select the error handling level. Possible values:</p><ul><li>"Default" - default;</li><li>"Ignore" - errors are ignored;</li><li>"Handle" - errors are handled.</li></ul><p>If "Default" is selected, the value from the "Start" block of this diagram will be used.</p></td></tr><tr><td valign="top">Error Output Direction</td><td valign="top"><p>Select the output direction from the block in case of an error. Possible values:</p><ul><li>"Default" - default;</li><li>"Right" - to the right;</li><li>"Bottom" - down.</li></ul><p>This property allows you to determine the output direction in case of errors for blocks that do not contain the "If Error" connector (for example, the "Condition" block).</p><p>If "Default" is selected, the value from the "Start" block of this diagram will be used.</p></td></tr><tr><td valign="top">Message Level</td><td valign="top"><p>Select the message level that the blocks will output during operation. Possible values:</p><ul><li>"Default" - default;</li><li>"Release" - output disabled;</li><li>"Debug" - main information output;</li><li>"Detailed" - detailed information output.</li></ul><p>If "Default" is selected, the value from the "Start" block of this diagram will be used.</p></td></tr><tr><td valign="top">Error Text</td><td valign="top">[Text] Returns detailed information about the error in case of incorrect execution of the block's work.</td></tr></tbody></table>


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