Select method in LINQ

hi all,
i am trying to update column values with “Mango” ,i am using below condition but i am getting error

Select operator is for Projection, but not for update

Additional keep in mind:
ToString() will return a value, but will not offer it as data assignment item and cannot be used for the left side

but with help of Select method we can update Array items,but we can not update data table items

before commenting this statement, please share with us the code statement which should doing this and is doing this successfully. Thanks

@JK_MECH

with select you cannot update lists as well

for your case try expression in assign

dt.Columns("Fruits").Expression = "'Mango'"