Validating a page from a control that has no action on the server (List Box control, Combo Box, etc.) By default, the validation of a page must be performed by a "Send the values of controls to the server (Submit)" button...... Timer on button (AAF) In an application developed in WINDEV, the user has the ability to implement a timer on a button...... TrustedCertificateAdd (Function) Adds a certificate to the list of trusted root authorities used to validate certification strings. 12. Preventing from going back to a page <Chart>.Scatter3DLinkPoint (Function) Links (or not) the points found in a "3D Scatter" chart. grScatter3DLinkPoint (Function) Links (or not) the points found in a "3D Scatter" chart. 19. Sending emails grScatter3DMarkCaption (Function) Used to specify the mark caption for a 3D Scatter chart. grScatter3DGridlines (Function) Displays the gridlines for the different planes of a 3D Scatter chart. grScatter3DDeleteMarkCaption (Function) Deletes the captions of marks found in a 3D Scatter chart <Chart>.Scatter3DAddData (Function) Adds a new point to display in a 3D Scatter chart. grScatter3DAddData (Function) Adds a new point to display in a 3D Scatter chart. <Chart>.Scatter3DMarkCaption (Function) Used to specify the mark caption for a 3D Scatter chart. <Chart>.Scatter3DGridlines (Function) Displays the gridlines for the different planes of a 3D Scatter chart. <Chart>.Scatter3DDeleteMarkCaption (Function) Deletes the captions of marks found in a 3D Scatter chart gr3DSParameter (Function) Retrieves or modifies a parameter for drawing a chart in 3D Spatial mode. <Chart>.Parameter3DS (Function) Retrieves or modifies a parameter for drawing a chart in 3D Spatial mode. Managing the required input in WEBDEV To prevent users from leaving a control empty, you can set it as a required field...... grScatter3DProjection (Function) Indicates whether the points found in a series of a 3D Scatter chart must be be projected on a given plane. grScatter3DAltitudeColor (Function) Defines the different colors used according to the altitude levels of a series found in a 3D Scatter chart. <Chart>.Scatter3DAltitudeColor (Function) Defines the different colors used according to the altitude levels of a series found in a 3D Scatter chart. <Chart>.Scatter3DProjection (Function) Indicates whether the points found in a series of a 3D Scatter chart must be be projected on a given plane. 25. Performing a process on several successive pages Performing a process on several successive pages... ERR_BUTTON_EXPECTED Valid (Property) The Valid property is used to determine if an element is valid.