how to show file name as dynamic attribute ?

[yairMSKTU]

i know in attdef in the tag if i put some symbols it shows me things like +-  (i think its %%p or something like that) or date or whatever.

what are the sybols for the file name (including extension) and for the layer name ?

i did before but i forgot how i did it...

[AVCPlugins]

You need to remember that fields are used to substitute the values of the properties of drawing objects.

[yairMSKTU]

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@AVCPlugins wrote:

You need to remember that fields are used to substitute the values of the properties of drawing objects.

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i can use it for whatever i want...    but you havent really answered my question...

[AVCPlugins]

If you are interested in the field-code for extracting the filename, then it is like this: %<\AcVar Filename \f "%fn7">%

[paullimapa]

Here's the one for current layer:

%<\AcVar clayer \f "%tc1">%

[Michiel.Valcke]

If you want to add a field (like the filename) to an attribute you have to set the attribute as 'preset'.  You can add a field while making the attribute or you can do it afterwards with the command BATTMAN (right click your preset text and choose the option insert field - this works for almost any kind of text in AutoCAD)

You can find the Field expression for your field in the bottom of the Field dialogbox

When you insert the block with the attribute in a drawing the filename will be displayed in the attribute.

EDIT: as was pointed out to me by @cadffm the preset option is not necessary, you can just use a default and add a field. I have a habit of always using the preset with default values so AutoCAD will not prompt me to fill them in.