Column API

TreeGrid documentation

In TreeGrid is column referenced always by its name as string.
By API there are accessible all grid columns set in XML and all their attributes and some runtime attributes. The columns are accessible by grid.Cols array as array of TCol objects.
Every column object contains its input XML attributes set by <C> tag, like Name, Width, Format etc.
All column objects accessible by their names, like grid.Cols[col].
All grid column objects can be iterated by for(var col in grid.Cols){ var C = grid.Cols[col]; ... } - it iterates randomly not by their positions.
Three arrays for the column sections ColNames[0] - left, [1] - mid, [2] - right. The array exists even if the section was not defined in XML.
Every array contains the column names sorted according to the position inside the section.
To iterate all column use such loops: for(var s=0;s<3;s++) for(var c=0;c<grid.ColNames[s].length;c++){ var col = grid.ColNames[s][c]; ... }
To iterate all visible columns you can use such loop for(var col = grid.GetFirstCol();col;col = grid.GetNextCol(col)) { ... }
(New 7.0) When set ColPaging, it contains column pages, can be more than 3, in this structure: 0 Left, 1 - (N-2) Mid, (N-1) Right, where N is the ColNames.length
Returns all columns (their names) in grid, in correct order in table.
If set attr1 and/or attr2, returns only columns that have set these attributes.
For example call grid.GetCols ("Visible","CanExport") to get all exportable columns.
Returns first and last actually visible section in grid [c1,c2]. c1 is 0 if left cols are visible, 1 otherwise, c2 is 3 if right cols are visible otherwise 2.
Returns first visible column in grid or null.
If set sec to column section index (0 - left, 1 - mid, 2 - right), it returns first visible column in given section or null.
Returns last visible column in grid or null.
If set sec to column section index (0 - left, 1 - mid, 2 - right), it returns last visible column in given section or null.
Returns next visible column according to its position.
To iterate all visible columns you can use such loop for(var col = grid.GetFirstCol();col;col = grid.GetNextCol(col)) { ... }
Returns previous visible column according to its position.
Returns column caption displayed in the first header - Header.