Determines whether the check box contains the specified option.

In the process of building YIDA applications, you may encounter the following problems.

• How to determine whether the check component contains a specified option value

Prerequisites

This tutorial uses the form formula of YIDA. You can first understand the followingForm formula.

• Logical function

• IF
• EQ

• Text function

• SEARCH
• CONCATENATE

Effect

Implementation steps

Create a common form page

Create a common form page. For more information, seeCommon form.

Drag the following components into the canvas area.

• Check: name it check
• Single choice: Named as the specified option
• Single line text: specifies whether the check box contains the specified option.

Add Form formula

Check whether the specified option field contains the default value. Select formula Edit and configure the formula shown in the following figure. You can also copy the formula source code directly. Note that you can modify the field.

{"text":"IF(ISEMPTY(​复选​),\"否\",IF(EQ(SEARCH(​指定选项​,CONCATENATE(​复选​)),0),\"否\",\"是\"))","marks":[{"from":{"line":0,"ch":11,"sticky":null},"to":{"line":0,"ch":15,"sticky":null},"value":"checkboxField_m33rn7nc","invalid":false},{"from":{"line":0,"ch":34,"sticky":null},"to":{"line":0,"ch":40,"sticky":null},"value":"radioField_m33rn7nj","invalid":false},{"from":{"line":0,"ch":53,"sticky":null},"to":{"line":0,"ch":57,"sticky":null},"value":"checkboxField_m33rn7nc","invalid":false}],"isCmData":true}

Save page

Try it online