Servoy 2020 Documentation
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Refresh page Nov 25, 2023 22:48

Supported Clients
SmartClient WebClient NGClient MobileClient

Property Summary
Boolean buttonsEnabled Set/Get the history buttons enabled.

Methods Summary
void back() Navigates back in the history stack; shows the previous form (if present).
void clear() Clear the entire history stack.
void forward() Navigates forward in the history stack; shows the next form (if present).
Number getCurrentIndex() Get the current absolute index in the history stack.
String getFormName(i) Get the form name based on the specified absolute index in the history stack location.
void go(i) Navigates to the relative index based on current position in the history.
Boolean removeForm(formName) Removes the named form item from the history stack (and from memory) if not currently shown.
Boolean removeIndex(index) Removes an absolute index based history stack form item.
Number size() Returns the total size of the history stack.

Property Details

buttonsEnabled

 
Set/Get the history buttons enabled.

Returns

Boolean

Supported Clients

SmartClient,WebClient,NGClient

Sample

history.buttonsEnabled = true;
var status = history.buttonsEnabled;

Methods Details

back()

 
Navigates back in the history stack; shows the previous form (if present).

Supported Clients

SmartClient,WebClient,NGClient,MobileClient

Sample

history.back();

clear()

 
Clear the entire history stack.

Supported Clients

SmartClient,WebClient,NGClient,MobileClient

Sample

history.clear();

forward()

 
Navigates forward in the history stack; shows the next form (if present).

Supported Clients

SmartClient,WebClient,NGClient,MobileClient

Sample

history.forward();

getCurrentIndex()

 
Get the current absolute index in the history stack.

Returns

Number the current absolute index

Supported Clients

SmartClient,WebClient,NGClient,MobileClient

Sample

var abs_index = history.getCurrentIndex();

getFormName(i)

 
Get the form name based on the specified absolute index in the history stack location.

Parameters

Number i the absolute index

Returns

String the formName

Supported Clients

SmartClient,WebClient,NGClient,MobileClient

Sample

var name = history.getFormName(history.getCurrentIndex());

go(i)

 
Navigates to the relative index based on current position in the history.

Parameters

Number i the relative index

Supported Clients

SmartClient,WebClient,NGClient,MobileClient

Sample

history.go(-3);

removeForm(formName)

 
Removes the named form item from the history stack (and from memory) if not currently shown.
Will return false when the form can't be removed, this can happen in certain situations:
1> The form is visible,
2> The form is executing a function (is actively used),
3> There are references to this form by a global variable/array,
4> If the form has a separate foundset with edited records that can't be saved (for example autosave is false)

Parameters

String formName the name of the form to remove.

Returns

Boolean true if successful

Supported Clients

SmartClient,WebClient,NGClient,MobileClient

Sample

var done = history.removeForm('mypreviousform');

removeIndex(index)

 
Removes an absolute index based history stack form item.

Parameters

Number index the index of the form to remove.

Returns

Boolean true if successful

Supported Clients

SmartClient,WebClient,NGClient,MobileClient

Sample

var done = history.removeIndex(history.getCurrentIndex()+1);

size()

 
Returns the total size of the history stack.

Returns

Number the size

Supported Clients

SmartClient,WebClient,NGClient,MobileClient

Sample

var size = history.size();

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