DomainDataSource.QueryParameters How does it work?

Question

any samples?

Answer 1

Follow an example using Parameter and ControlParameter:

        <riaControls:DomainDataSource
            x:Name="dds"
            QueryName="GetEntityByCountryName"
            AutoLoad="True">
            <riaControls:DomainDataSource.DomainContext>               
               <web:YourDomainContext />
            </riaControls:DomainDataSource.DomainContext>
            <riaControls:DomainDataSource.QueryParameters>

                <riaData:Parameter ParameterName="country" Value="RU"/>

                <riaData:ControlParameter
                    ParameterName="name"
                    ControlName="txtTextToLookup"
                    PropertyName="Text"
                    RefreshEventName="TextChanged" />
        </riaControls:DomainDataSource>
.
.

The GetEntityByCountryName query method on the server side would have the follow signature:
  public IQueryable<Entity> GetEntityByCountryName(string country, string name)

 

Answer 2

thanks... that's in a XAML, and how to in C# (programmatically)?

Answer 3

Essentially the same.

this.dds.QueryParameters.Add(new Parameter { ParameterName = "country", Value = "RU" });

Kyle

Answer 4

Thanks!

спасибо!!! :)

Answer 5

here how it works in c#

 

var context = ddsDetailInfo.DomainContext as WATGDomainContext;

context.Entities.Clear();

ddsDetailInfo.QueryName = "GetCustomEditableProjectDetails";

ddsDetailInfo.QueryParameters.Clear();

var p = new Parameter();

p.ParameterName = "_projectseq";

p.Value = (Guid)summaryinformation.ProjectSeq;

ddsDetailInfo.QueryParameters.Add(p);

var pp = new Parameter();pp.ParameterName = "_projectnumber";

pp.Value = summaryinformation.ProjectNumber;

ddsDetailInfo.QueryParameters.Add(pp);

ddsDetailInfo.Load();

Answer 6

Is it possible to use the selected item from a datagrid as the query parameter for another datasources filter in xaml, not in code behind?

Answer 7

Can you tell me how to implement a method by passing its string of name in a custom control? like the QueryName of DomainDataSource?

Thank you in advance.

Answer 8

You need to setup the parameter on the server-side webservice before sending the parameter in from the client.

Once the webservice is defined, the client will automatically adapt and ask you for the paramter.

See here for detailed example:

http://www.buzzbit.net/user/systemblogger