Need to add additional parameters in Post request

[Md Jonayed Hossain Chowdhury]

I need to make a treeview where I get the json formate from the server. I tried WebMethodAdaptor but failed. Code is: 

public hierarchicalData: Object = new DataManager({
  url: SERVICE_URI,
  adaptor: new WebMethodAdaptor,
}).executeQuery(new Query().addParams('projectID', 'C03374EC2')).then((e) => {console.log(e); });

[Christopher Issac Sunder K]

Hi Md Jonayed, 

We have validated your query. Please check whether you have properly initializes the params in the serve side where you fetch the data. 

[Server side code] 

// initializes params at server side. 

public bool requiresCounts { get; set; } 

public int skip { get; set; } 

public int take { get; set; } 

public string data { get; set; } 

public Dictionary<string, object> @params { get; set; } 

While providing the above code snippet you will get the params in the following format. 

 

This is how the additional parameters get added from the server side request. 

For more information you can check the following documentation link 

https://ej2.syncfusion.com/documentation/api/data/query/#addparams 

https://ej2.syncfusion.com/angular/documentation/data/adaptors/?no-cache=1#webmethod-adaptor 

Please check whether the provided information fulfills your requirement . If not, please share your code snippet (server side) or sample that replicates your issue if possible. 

Thanks,
Christo