Combination "ValueChange" in Tag Script

[Joe]

Hi,
how can I combine following conditions, for better transparency

----------------------------------
void Station2_M700_ValueChange(System.Object sender, Neo.ApplicationFramework.Interfaces.Events.ValueChangedEventArgs e)
{
ScriptModule1.Start();
}

void Station2_M710_ValueChange(System.Object sender, Neo.ApplicationFramework.Interfaces.Events.ValueChangedEventArgs e)
{
ScriptModule1.Start();
}
----------------------------------
Like this ... ? ->

"Station2_M700_ValueChange or Station2_M710_ValueChange"
{
ScriptModule1.Start();
}
----------------------------------
Thanks for reply

Joe

[mark.monroe]

Create a function that calls ScriptModule1.Start(). Then use that function in both of your ValueChange events.

You are free to create your own functions in a screen script. You do not have to use ours.

Code: Select all

namespace Neo.ApplicationFramework.Generated
{
    using System.Windows.Forms;
    using System;
    using System.Drawing;
    using Neo.ApplicationFramework.Tools;
    using Neo.ApplicationFramework.Common.Graphics.Logic;
    using Neo.ApplicationFramework.Controls;
    using Neo.ApplicationFramework.Interfaces;
    
    
    public partial class Screen1
    {
		
		void Button1_Click(System.Object sender, System.EventArgs e)
		{
                       MyFunction();
		}
		
		void MyFunction()
		{
			ScriptModule1.Start();
		}
		
    }
}

[Patrick Hall]

A slightly different option is the one I use. I create 1 single ValueChanged event, or manually create a function with matching signature. Per your existing convention.

Code: Select all

void Station2_Mxxx_ValueChange(System.Object sender, Neo.ApplicationFramework.Interfaces.Events.ValueChangedEventArgs e)
{
    ScriptModule1.Start(); 
}

Now from the script editor for Tags you can right click each tag you wish to use this ValueChange event code, and "Hookup existing..."

Hookup Event Handler

Hookup ValueChange Evt Hndler.png (29.74 KiB) Viewed 8844 times

You can also cast "sender" to a GlobalDataItem if you want to gain access to the Tag's name, Gain, or Value for further specific function upon the change in value.

For Example, Assuming 4 Tags [Tag1 ... Tag4] are created, each assigned the same event handler.

Code: Select all

void Station2_Mxxx_ValueChange(System.Object sender, Neo.ApplicationFramework.Interfaces.Events.ValueChangedEventArgs e)
{
    GlobalDataItem tag = (GlobalDataItem)sender;
    if(tag.Name.Equals("Tag2"))
        MessageBox.Show("Tag2 Was Changed!");
}

You can now react to an individual condition (such as Name) depending on which tag was changed.

This is the methodology I use to create a central value change event handler and dispatch functionality to other Class Methods depending on the desired behavior I want.