I wanted to search features by year and color code them based on status column

Permanently deleted user

September 19, 2016 06:51

We have projects feature service (Lines)  and it has below attributes

1. ID
2. ProjectName
3. ProjectStartedYear (eg: 2007,2009)
4. ProjectEndyear(eg..2010,2012)

Need to build an interface for users to select year value. eg: 2008,2009

 

We can do that in workflow forms and using combo box. But my client wanted to set color for features as below

 

Eg: user selected year 2009 

 

1) Project stated : Blue color

 

2) Under construction Project: Orange

 

3) Projects End : Green color 

 

How can we dynamically change colors of features after search ? 

 

 

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  Permanently deleted user

  September 22, 2016 20:29

  Hi Anjitha, 

   

  If you want to dynamically change the colours of features, then the only option available is the Layer Visualization feature where you can change how the features are symbolized for the entire layer.

   

  If you only want the selected features to be resymbolized based on certain attributes, then you can mimic this by using the UpdateGraphicsLayer activity. You would first make a selection and then feed that into the activity to essentially add a markup/graphic overtop your feature to make it look like you are re-symbolizing them. You will have to be creative in how you divide up the selected features because you will need one UpdateGraphicsLayer activity per symbol/colour. 

   

  You can find an example of how to use the UpdateGraphicsLayer in the Sample Sites folder located on your server. The file path to that should look like this:

   

  C:\Program Files (x86)\Latitude Geographics\Geocortex Essentials\Default\REST Elements\Sample Sites\Workflow_Samples\Resources\Workflows\Common Client\UpdateGraphicsLayer and CreateGraphicsLayer.xaml

   

  I hope this helps.

   

  Carmen

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  John Nerge

  September 23, 2016 20:29

  For a less technical user like me, a solution I would use would be to have a symbolized version of the layer as part of my site but turned off and not in the layer list. Then I'd use a workflow to:

   

  1) Have the user pick one or more years

   

  2) Use the year/s to set a layer definition on the symbolized, not visible layer

   

  3) Set the visibility of my unsymbolized layer off

   

  4) Set the visibility of my symbolized layer on

   

  It's a little clunkier on the site config side, but hopefully a lot simpler from the workflow/visualization side.

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