Alpha channel is white, not transparent, in Texture mode I imported images-as-planes into Blender Cycle.  I clicked "use alpha" (premultiplied) and "emissions and transparent".  The images are fine in Render mode, but the transparent areas appear as opaque white in the viewport in texture mode.  I need the transparent areas to be transparent while I'm editing.

How can I fix this problem?

Thank you!
In cycles the transparency will not show on texture view. In Material view it will:



In blender render it is possible to display the transparency in texture mode or material mode: