How to change Batch caption dialog field in run time. RunBaseBatch sample

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Источник: http://alexvoy.blogspot.com/2014/01/...on-dialog.html
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<div dir="ltr" style="text-align: left;" trbidi="on">This is an example of a RunBaseBatch class that demonstrates how to change another dialog fields in run time.

Let's say we have a parameter of enum type, which selects the right business logic inside of Run method.

It is a good idea to change the main static text of the dialog as well as the batch caption that serves as a description for an eventual batch job (and tasks).

After adding this field in Dialog method we need to override Modified method for this field.


protected Object dialog()
{
FormComboBoxControl combobox;
dlg = super();

dialogEventType = dlg.addFieldValue(EnumStr(uapInterfaceEventType), eventType );
// to add details to the caption and task description in batch tasks
dialogEventType.registerOverrideMethod(methodstr(FormStringControl, modified), methodstr(tmxRunBaseBatchSample, eventType_modified), this);
// to avoid user input in the field
combobox = dialogEventType.control();
combobox.comboType(1);

return dlg;
}
In eventType_modified method we call two additional methods to apply the user input respectively for BatchCaption and MainInstruction fields.

private boolean eventType_modified(FormStringControl _control)
{
boolean ret = _control.modified();
if(ret)
{
this.setBatchCaption();
this.setMainInstruction();
}
return ret;
}
To get access to these dialog fields we use two different approaches. We find BatchCaption form control recursively inside of batch tab page based on its type.

private void setBatchCaption()
{
FormStringControl batchCaptionControl;

// to get the batch caption control; any of them if many
batchCaptionControl = this.getBatchCaptionControl(dlg);

if (batchCaptionControl)
{
batchCaptionControl.text(this.caption());
}
} // returns the batch caption form control if any in the dialog
private FormStringControl getBatchCaptionControl(DialogRunbase _dialog)
{
FormStringControl batchCaptionControl;

// recursive routine to look for the right form control of BatchCaption EDT
Object findBatchCaptionControl(Object _parentObject)
{
int i;
Object childControl;
Object foundControl;


for (i = 1; i