hi, my data grid have 100,000 data , it is too slow normally . i take the data from my database by using collection. what can i do?

A human being can't cope with that amount of data . You should try paging, thus page through your 100,000 rows, showing for example 50 at a time and let the user decide which page to load. To read more about 'paging', please check out the documentation: Using the generated code / selfservicing(adapter) / collection and Typed List/Typed View paging