I have an inline edit form and everything is working great except I need to have it with more than one column ( like in the demo ). I have attached a screen shot of what I want to do. I have tried setting ColumnNumber to 2 but that has not worked.
You can achieve this by setting the attributes ColumnNumber and EditFormColumnIndex to EditFormSettings and to the Grid-column respectively.
Here is a sample aspx to achieve the same.