Passing Values from Client-Side Javascript to Server-Side C# Actions in Infor CRM Web

There are more and more parts in Infor CRM (Saleslogix) that use client-side code, however, the application itself does still rely heavily on C# server-side actions in postbacks for most of the heavy work. Mixing the two worlds can sometimes be necessary to have things work seamlessly.

Passing values from your client-side code to the server-side code can easily be done using the ClientContextService. There are both Javascript & C# versions of the ClientContextService and they both share the same data. You can use the Javascript ClientContextService and add & remove values and in your server-side code you can use the .NET ClientContextService to do the same. You can set values in Javascript and read them from C# and also set values in C# and read them in your Javascript code. Let’s take a look at how it works.

The ClientContextService

The following Javascript sets some values in the context service:

// Client-side Javascript code

// get the context service
var context = Sage.Services.getService('ClientContextService');

// check if our value already exists. If so, update it, if not add it
if (context.containsKey('Foo')) {
    context.setValue('Foo', 'Hello from the other side');
}
else {
    context.add('Foo', 'Hello from the other side');
}

This C# code in a postback reads the values set from the Javascript code above:

// Server-side C# code

// get the context service 
var context = PageWorkItem.Services.Get<Sage.Platform.WebPortal.Services.ClientContextService>();

// check for the value set by the client-side code 
if (context.CurrentContext.ContainsKey("Foo"))
{
    var fooValue = context.CurrentContext["Foo"];
    // do something with fooValue...
}

We could easily do the same to make values available in our Javascript code from C#.

ABOUT THE AUTHOR

Ryan Farley

Ryan Farley is the Director of Development for Customer FX and creator of slxdeveloper.com. He’s been blogging regularly about SalesLogix since 2001 and believes in sharing with the community. He loves C#, Javascript, Python, web development, open source, and Linux. He also loves his hobby as an amateur filmmaker.

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