Many times you want to create a User Control object and show it within the Control Type property of an attribute or variable.
To achieve it, you need to do the following:
1) Create a User Control object
2) Set its Is Control Type property = True
When you enable the Is Control Type property, the Data Type Filter property appears in order to indicate the data type for which this control is appropriate.
3) Indicate which HTML element of the control Layout is the one that maintains the value of the control. To carry out this, in the Screen Template tab of the user control, you have to include the expression {{DataElement}} in the desired tag:
<input type="number" {{DataElement}}></input>
This means that the value property of the input HTML element will have the value of the User Control created.
Note: Only the HTML elements that natively support the value property can "maintain" the control value (the HTML Tags available for the value property are as follows: <button>, <input>, <li>, <option>, <progress>, <param>). Also, HTML elements that receive the value from a JQuery plugin may be used to maintain the value of a User Control.
In order to set a value for the control, you only need to set a value for the associated variable or attribute.
To read the control value, simply access the value of the associated variable or attribute.
This example contains two User Control objects and designs a login for an application without considering security.
There is a LogIn Web Panel object that asks for the following data:
- Company
- Username
- Password
These data are entered through three variables included on the screen and each one has its Control Type property configured with the pre-designed User Control objects. After the user completes the data and presses the Confirm button, another Web Panel is called to display the data sent by parameter.
Download the xpz file with the User Control Object and DataElement usage example