What is combo.save(), combo.restore() and combo.remove()? No

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#1

I was looking at the provided sample for using combo in grids and found the follow code:



function myf(stage,id,index){

var ind=mygrid.getRowIndex(id);

if ((index==5)&&(stage==0))//start edit Shipping column

{

var combo=mygrid.getCombo(5);

if (ind%2==1){ //for even rows

combo.save(); //save initial state

combo.remove(1);

combo.remove(2);

combo.remove(3);

}

else{

combo.save(); //save initial state

combo.remove(4);

combo.remove(5);

combo.remove(6);

}

}



if ((index==5)&&(stage==2)) //for finishing edit

mygrid.getCombo(5).restore(); //restore combo state

return true;

}

…



What is combo.save(), combo.restore() and combo.remove()? Nothing in the documentation about them or what they do?



Can you please explain?



Daniel,

#2

Managing selectbox collection ( co, coro excells )


To get collection common for whole column next method can be used
combo = grid.getCombo(index);
if collection need to be specific for cell
combo = grid.getCustomCombo(index)

The collection supports next API

    combo.put(value,label) - add new record in collection
    combo.remove(value) - remove record from collection
    combo.clear() - remove all records from collection

    combo.size() - return current size of combobox
    combo.get(value) - returns label by value
    combo.getKeys() - return an array of all possible values

    combo.save() - save current state
    combo.restore() - restore previously saved state


The less common use-case - get value by label can be done with next code

var value = combo.values[combo.keys._dhx_find(key)];





#3


Thank you.



Is this mentioned  anywhere in the documentation provided with each release?



Daniel,

#4

Current documentation has only brief mentioning of combo methods, the text above taken from draft of extended documentation, which will be released in nearest time.