SSRS : Enable/ Disable contract class Control Based on other contract parameter control

In this blog we will see how to enable / disable contract class parameter control based on the modification of other contract class parameter. This all is going to be happened in UI Builder class

So here we go

1.       First write the Method which is responsible to perform actual functions like enabling and disabling control

In this blog I will be using Enum Control and based on its modification disabling lookup controls

Where in below image Report Type is Enum Control and WindMast and Sensor are the lookup controls

Enable/ Disable Method should be written in UI Builder class will be like

private boolean EnableControls(FormComboBoxControl _control)

{

   

   

    if(_control.valueStr() == enum2str(TK_TurbineSummary::Production))

    {

    dWindMast.enabled(false);

    dSensor.enabled(false);

    }

    else

    {

       dWindMast.enabled(true);

    dSensor.enabled(true);

    }

    return true;

}

In above piece of code I have disable the lookup controls On “Production” Report Type and make them enable on Wind Speed Report Type

Where dWindMast and dSensors are the dialog field define in Build method of UI Class like Below

Now In Post Build Method of UI Class we need to register our above created method “EnableControls”  Like below

public void postBuild()

{

 dReportType = this.bindInfo().getDialogField(this.dataContractObject(), methodStr(TK_TurbineSummaryContract, parmReportType));

            dReportType.registerOverrideMethod(methodStr(FormComboBoxControl, modified), methodStr(TK_TurbineSummaryUI, EnableControls), this);

            dShowProduction = this.bindInfo().getDialogField(this.dataContractObject(), methodStr(TK_TurbineSummaryContract, parmShowProduction));

}

When we Run Report and change the Report type Drop down value Result will be as below

Disable Controls : 

Enabling Control on drop down selection changed