Question of tree control column - hot/indicator
Is it possible to have some columns in a tree control will be hot (Edition) and others as indicators (no parameter)? It seems as if all columns (except the first column "0th") must be all hot or all indicators. I also looked in the attributes of the cell, and there is no way to make cells either as hot or indicators indiviidual either (like Table controls).
I noticed that the elements can be mitigated using tho attribute ATTR_CELL_DIMMED, which gives a behavior similar to what I'm looking for (the user cannot change the value of the cell), but also gives the cell a greyed look. I tried to manually adjust the appearance of the cell back to what I would (IE ATTR_LABEL_TEXT to black), but of course, it didn't have an effect. Any ideas? Thank you.
You can choose the columns and cells you want to change using the tree callback function, if you have a CVI 2009 or later. You can use ATTR_TREE_RUN_STATE and ATTR_TREE_EDITABLECELLS inside the EVENT_LEFT_CLICK (and probably EVENT_LEFT_DOUBLE_CLICK too) to achieve this. I enclose a simple project with a tree that you can edit the first column of a double-click, the 2nd column with a single click and you can not change the data in column 3 at all. You can even specify individual cells make you it editable if that's what you wanted to do.
Tags: NI Software
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