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I would like to delete multiple polygons at once: How to delete multiple selected polygons at once?

Why can't I right click -> toggle editing Quantum GIS [ it is grayed out] ?

My layer is polygon shapefile. It is the only layer open in QGIS

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Please add some more info, like what version of QGIS you are using, and on what platform. Usually, when you can't edit a shapefile, it is because the file itself is either locked or you do not have permission to write to the file. Can you share the shapefile, so others can test it? –  dakcarto May 5 '12 at 1:52
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did your shapefile have a .dbf? If it hadn't QGIS (or better put OGR) considers it readonly and you can't edit it. –  jef Jun 8 '12 at 20:00
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closed as too localized by underdark Jun 8 '12 at 20:19

This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

1 Answer

The answer is that it was in a project and not every shapefile in the project had the same projection.

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This answer contradicts the question: "My layer is polygon shapefile. It is the only layer open in QGIS" –  underdark May 30 '12 at 19:18
    
@underdark If I remember correctly, I deleted one of the layers which was projected in a different coordinate system and then I only had one layer remaining. I think the project settings somehow conflicted with the shapefile projection. –  patrick May 30 '12 at 19:33
    
In my experience, layer CRS settings don't influence editing possibilities. If you cannot reproduce the problem anymore, it is probably better to close the question. –  underdark May 30 '12 at 20:29
    
@underdark I don't have admin permissions to close the question. feel free. –  patrick Jun 8 '12 at 20:09
    
This is really a comment, not an answer to the question. Please use "add comment" to leave feedback for the author. –  iant Aug 15 '12 at 10:45
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