1 I would like to put html in the header cormer, but any header with IsCorner property will fired BeforeHeaderRender, maybe it's only in demo version ??
2 In the same event the arg have a columns property, i use ressource mode and define sub-columns but all BeforeHeaderRender args have a columns proprty empty ? How can i have the level of then column rendered
3 It's possible to have different width for sub columns ?
thank and sorry for bad english