Display method filter in AX 2012

http://dynamicsaxsolutionsworld.blogspot.no/2011/09/how-to-add-search-find-filter.html

This is for my reference and got it from above site.

How to add Search/ Find /Filter functionality to Display method in dynamics AX

Dynamics AX, can retrieve output values by using table field and display method. As we know, usually standard dynamics AX filter functionality is working only for table field. But sometimes we have to do filter functionality for display method too. Below I’m going to explain how to add a filter functionality for Display method.

1.      Here I have added display method (disCustName) to display customer name on the “IND_BusRelation” form. In this form main data source is “smmBusRelTable”.

2.      Change “AutoDeclaration” property from No to Yes of the “disCustName” data field.

3.      Override “context()” method of the “disCustName” data field and add following code.

  

public void context()

{

    int             selectedMenu;

    formrun         fr;

    Args            ag;

    Name            strtext;

    querybuilddataSource qb1;

    queryrun    qr;

    query       q;

    PopupMenu menu = new PopupMenu(element.hWnd());

    int a = menu.insertItem('Filter By Field');

    int b = menu.insertItem('Filter By Selection');

    int c = menu.insertItem('Remove Filter');

    ;

    selectedMenu = menu.draw();

    switch (selectedMenu)

    {

    case -1: //Filter by field

            break;

    case a:

            ag = new args('SysformSearch');

            fr = new formrun(ag);

            fr.run();

            fr.wait();

//Reading User entered value for filter process

            strtext = fr.design().controlName('FindEdit').valueStr(); 

            if(strtext)

            {

//Creating a query for filter

                q   = smmBusRelTable_ds.query();

                qb1 = q.dataSourceTable(tablenum(smmBusRelTable));

                qb1 = qb1.addDataSource(TableNum(CustTable));

                qb1.addLink(FieldNum(smmBusRelTable,CustAccount),FieldNum(CustTable,AccountNum));

                qb1.addRange(FieldNum(CustTable,Name)).value(strtext);

                smmBusRelTable_ds.query(Q);

                smmBusRelTable_ds.executeQuery();

            }

            break;

    case b:   // Filter By Selection

            q   = smmBusRelTable_ds.query();

            qb1 = q.dataSourceTable(tablenum(smmBusRelTable));

            qb1 = qb1.addDataSource(TableNum(CustTable));

            qb1.addLink(FieldNum(smmBusRelTable,CustAccount),FieldNum(CustTable,AccountNum));

            qb1.addRange(FieldNum(CustTable,Name)).value(disCustName.valueStr());

            smmBusRelTable_ds.query(Q);

            smmBusRelTable_ds.executeQuery();

            break;

    case c :   // Remove Filter

            q   = new Query();

            qb1 = q.addDataSource(tablenum(smmBusRelTable));

            qb1.clearLinks();

            qb1.clearRanges();

            smmBusRelTable_ds.query(Q);

            smmBusRelTable_ds.removeFilter();

            break;

    Default:

            break;

    }

}

4.       Run the form and do right Click on Customer Name field.