radio button - Set UltraGrid to ReadOnly property, vb.net -

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in project, have form has 3 radio buttons, ultragrid, , textbox. when load form, want ultragrid readonly, or equivalent of this, , want become active again when rbcategory checked (one of radiobuttons). need set readonly again if 1 of other 2 radio buttons selected.

i feel readonly not property can used ultragrids, equivalent (to make grey, readonly textbox, basically), , how coded?

i tried using 

ugcategories.displaylayout.override.allowupdate = defaultableboolean.false

but didn't seem job

by setting allowupdate making grid read-only. if need change grid appearance need set appearance read-only cells this:

ugcategories.displaylayout.override.readonlycellappearance.backcolor = color.gray;

further, may consider set , cellclickaction cellselect this:

ugcategories.displaylayout.override.cellclickaction = infragistics.win.ultrawingrid.cellclickaction.cellselect;

you may check this article more helpful information mike saltzman - infragistics win forms guru


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