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If you want to manually edit the SLD for the selected Layer then click on the Advanced tab. 

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Here you can manually configure the style of your OGC Layer. Astun supply some default SLD files in the folder specified in the iShare Settings General tab SldSnippetDefinitionPath. For more information on SLD please refer to the GeoServer documentation which has plenty of examples http://docs.geoserver.org/stable/en/user/styling/sld-cookbook/index.html.

Toolbar

There is a Toolbar at the top of the Editing pane for common functions:

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If you wish to apply different styles to a Layer then you can do this using Multiple Rules. Any field used as a SLD property must be made available as a displayed field in the layer options, and the <PropertyName> in the SLD must match the field name in the database exactly (including case). The following SLD is an example of how we have styled the Councils layer to display different colours for different types of authority and it appears in iShare GIS like this:

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Using an SLD exported from QGIS

StepExample
If you open the DB Manager in QGIS, find the Layer you wish to style and select Add to canvas.

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Now select the Layer in the Layers Panel in QGIS, right click and select Properties.

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You will see a Style button with a drop down selection.

Select Save Style > SLD File... and save it to a location of your choice.

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Now we need to extract the information from this SLD and paste it into the SLD Style Editor.

Open the SLD in a text editor e.g. Notepad++

Now you need to remove all references to the namespace in our example below this is se:

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Use the Replace function to replace the namespace: (in our example se:) with blank.

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Now you need to extract just the <Rule> information.

Our example above just has one Rule but yours may have several so, if you are using v5.6.0 or above, then you can extract them all.

Now you can paste this information into the Advanced tab of the SLD Style Editor.

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