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2.2.4.6.9 DataObject::IsFormulaAutoUpdate

IsFormulaAutoUpdate

1 Description
2 Syntax
3 Parameters
4 Return
5 Examples
6 Remark
7 See Also
8 Header to Include

Description

Returns the autoupdate mode for the column formula (if any).

Syntax

int IsFormulaAutoUpdate( int * pBegin = NULL, int * pEnd = NULL )

Parameters

pBegin: [output, optional]it receives the lower row bound of the formula.
pEnd: [output, optional]it receives the upper row bound of the formula.

Return

One of the values:

AU_NONE = not recalculable (no operation object present).

AU_AUTO = automatic recalculation once any input value changes.

AU_ON_COMMAND = manual recalculation

Examples

EX1

void    DataObject_IsFormulaAutoUpdate_Ex1()
{
    Worksheet wks;
    wks.Create("origin", CREATE_VISIBLE);    
  
    Dataset dsA(wks, 0);
    dsA.Data(1, 100, 1);    
    
    Column col(wks, 1);
    col.SetFormula("sin(4*col(A)*pi/180)", AU_AUTO, 5, 10); // set column formula with auto update mode
    col.ExecuteFormula();// this step is needed to initiate Recaulation
 
    int nBegin, nEnd;
    bool bAU = col.IsFormulaAutoUpdate(&nBegin, &nEnd);
    if(AU_AUTO == bAU)
    	out_str("set column formula with auto update mode");
}

EX2

void DataObject_IsFormulaAutoUpdate_Ex2()
{
	MatrixPage mp;
    mp.Create("origin");
    MatrixLayer ml = Project.ActiveLayer();
    if ( !ml )
    {
        printf("Can not access active matrixsheet");
        return;
    }
    MatrixObject mo = ml.MatrixObjects(0); //get first matrixobject
    mo.SetFormula("sin(i) + cos(j)");
    mo.ExecuteFormula();
    int nBegin, nEnd;
    if ( 0 == mo.IsFormulaAutoUpdate(&nBegin, &nEnd) )
        printf("Formula is auto update mode");
}

Remark

Header to Include

origin.h