Dynamics Community Forum Thread Details

how to add a new parameter to output Menu reports in dynamics 365 for finance and operations

I have already tried to do this by adding an extension to the /Contract Class/ in the AOT, and it was successful as this parameter was displayed during the execution of this report in the Output Menu. However, when I try to program this parameter in the UIBuilder Class so that I fill this parameter with specific values through a query, I face an error message that appears as /Value cannot be null. Parameter name: key/.

My Contract Class:

[ExtensionOf(classStr(LedgerTransStatementContract))]final class LedgerTransStatementContract_Sitcom_Extension{    public List DataAreas;    [        DataMemberAttribute('DataAreas'),        AifCollectionTypeAttribute('DataAreas', Types::String),        SysOperationLabelAttribute(literalStr(/Data Area/)),        SysOperationDisplayOrderAttribute('1')    ]    public List parmDataAreas(List _DataAreas = DataAreas)    {        DataAreas = _DataAreas;        return DataAreas;    }}

My UIBuilder Class:

[ExtensionOf(classStr(LedgerTransStatementUIBuilder))]final class LedgerTransStatementUIBuilder_Sitcom_Extension {    public DialogField dialogDataArea;    public LedgerTransStatementContract_Sitcom_Extension contract;    public void postBuild()    {        next postBuild();        contract = this.dataContractObject() as LedgerTransStatementContract_Sitcom_Extension;        dialogDataArea = this.bindInfo().getDialogField(contract, methodStr(LedgerTransStatementContract_Sitcom_Extension, parmDataAreas));        dialogDataArea.registerOverrideMethod(methodStr(FormStringControl, lookup), methodStr(LedgerTransStatementUIBuilder_Sitcom_Extension, GetDataArea), this);        if(dialogDataArea)        {            dialogDataArea.lookupButton(2);        }    }    private void GetDataArea(FormStringControl _control)    {        Query query = new query();        QueryBuildDataSource qbds = query.addDataSource(tableNum(CompanyInfo));        qbds.fields().dynamic(false);        qbds.fields().clearFieldList();        qbds.addSelectionField(fieldNum(CompanyInfo, DataArea));        SysLookupMultiSelectGrid::lookup(query,_control, _control, _control, conNull());    }}

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