Presently, there is no similar straightforward setting to employ.
You can set the values to these columns to some minimal width, which is just enough to accommodate their contents, since they are known in advance, which is not the case with the other columns.
Another alternative is to set the width of the columns at runtime, either in the ColumnCreated server side handler, or in the PreRender event handler.
I hope this information helps.
the Telerik team
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