FormRun.getPrevField Method

Article
04/11/2014

Retrieves a FormControl object for the field that precedes the field that is specified by a FormControl object.

Syntax

public FormControl getPrevField(FormControl control, [int flags])

Run On

Client

Parameters

control
Type: FormControl Class
A FormControl object for a specified field.

flags
Type: int
An integer that specifies the process that is used to find the last field; optional.

Return Value

Type: FormControl Class
A FormControl object.

Remarks

You can use one or more of the following bit-flag constants for the _flags parameter. You can use macros to define constants. For more information, see Macros in X++.

FINDCONTROL_CANEDIT= 0x0001
FINDCONTROL_CONTAINER= 0x0002
FINDCONTROL_CANDISPLAY= 0x0004
FINDCONTROL_SAMECONTAINER= 0x0008
FINDCONTROL_NODISPLAYTEST= 0x0010
FINDCONTROL_TABSTOP= 0x002
FINDCONTROL_SAMEPARENTCONTAINER= 0x0040
FINDCONTROL_ALLOWSYSHIDDEN= 0x0080
FINDCONTROL_SINGLELOOP= 0x0100
FINDCONTROL_NOTPARENTCONTAINTER= 0x0200
FINDCONTROL_ACTIVE= 0x0400
FINDCONTROL_VISIBLE= 0x0800
FINDCONTROL_SAMECONTROLTYPE= 0x1000

Examples

The following example shows a call to the getPrevField method to return a FormControl object for the previous field in the form. The FormControl.helpText method sets the Help text for the previous field.

static void createForm2(Args _args) 
{ 
    Args args; 
    Form form; 
    FormRun formRun; 
    FormBuildDesign formBuildDesign; 
    FormBuildDataSource formBuildDataSource; 
    FormBuildGridControl formBuildGridControl; 
    FormBuildStringControl formBuildStringControl; 
    FormStringControl formStringControl; 
    FormControl formControl; 
    DictTable dictTable; 
    int idx; 
    int idx2;  
 
    // Create the form header. 
    form = new Form(); 
 
    // Add data sources to the form. 
    dictTable = new DictTable(tablenum(CustTable)); 
    formBuildDataSource = form.addDataSource(dictTable.name()); 
    formBuildDataSource.table(dictTable.id()); 
 
    // Create the form design. 
    formBuildDesign = form.addDesign("Design"); 
 
    // Add controls. 
    formBuildGridControl = 
 formBuildDesign.addControl(FormControlType::Grid, "Table Grid"); 
    formBuildGridControl.dataSource(dictTable.name()); 
    idx = formBuildGridControl.id(); 
 
    formBuildStringControl = 
 formBuildDesign.addControl(FormControlType::String, "Table String"); 
    formBuildStringControl.dataSource(dictTable.name()); 
    idx2 = formBuildStringControl.id(); 
 
    // Add a data field to the controls. 
    formBuildGridControl.addDataField(formBuildDataSource.id(), 
dictTable.fieldName2Id("AccountNum")); 
    formBuildStringControl.dataField(1); 
 
    args = new Args(); 
    args.object(form); 
 
    // Create the run-time form. 
    formRun = new FormRun(Args); 
 
    formRun.run(); 
    formRun.detach(); 
    formStringControl = formRun.control(idx2); 
 
    formControl = formRun.getPrevField(formStringControl); 
    formControl.helpText("This field displays a table record."); 
}

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