What is Diff B/W Grid column_2 2* and column_4 2*?

Question

any one help how to use code wise example for Grid using in phone application....

Answer 1

Suppose there 4 columns in grid

Column _2 2*: After the Auto columns are calculated, the column gets part of the remaining width. Column 2 will be one-half as wide as Column 4.

Column _4 2*: After the Auto columns are calculated, the column gets part of the remaining width. Column 4 will be two times as wide as Column 2.