Data grid is not populated with data from data table

I have created a data grid view, i have also created a data table with values now i want to add the whole data table to data grid view.

So here is my code // dataGrid is creditMemoGrid

creditMemoGrid.Columns[0].Name = "No.";

creditMemoGrid.Columns[1].Name = "Memo #";

creditMemoGrid.Columns[2].Name = "Amount";

DataTable table = new DataTable();

table.Columns.Add("Dosage", typeof(int));

table.Columns.Add("Drug", typeof(string));

table.Columns.Add("Patient", typeof(string));

// Here we add five DataRows.

table.Rows.Add(25, "Indocin", "David");

table.Rows.Add(50, "Enebrel", "Sam");

table.Rows.Add(10, "Hydralazine", "Christoff");

table.Rows.Add(21, "Combivent", "Janet");

table.Rows.Add(100, "Dilantin", "Melanie");

creditMemoGrid.DataSource = table; // no data in data grid

If i do "creditMemoGrid.DataSource = table" i dont see data in data grid. what is the problem that i am facing ?

Can anybody help me?

Check the below code to add data in datatable

DataTable dt = new DataTable();

dt.Clear();

dt.Columns.Add("CountryName");

dt.Columns.Add("Population");

dt.Columns.Add("Code");

DataRow dataRow1 = dt.NewRow();

dataRow1["CountryName"] = "India";

dataRow1["Population"] = "125 Cr";

dataRow1["Code"] = "IN";

dt.Rows.Add(dataRow1);

DataRow dataRow2 = dt.NewRow();

dataRow2["CountryName"] = "Pakistan";

dataRow2["Population"] = "50 Cr";

dataRow2["Code"] = "PK";

dt.Rows.Add(dataRow2);

DataRow dataRow3 = dt.NewRow();

dataRow3["CountryName"] = "United States";

dataRow3["Population"] = "25 Cr";

dataRow3["Code"] = "US";

dt.Rows.Add(dataRow3);

For detail have a look of the link for detail

For binding data to datagridview have a look of the link