HOW TO ADD DATA FROM DATADASE TO GRID IN ASP.NET

FUNCTION FOR ADDING DATA FROM DATADASE TO GRID IN ASP.NET
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public void grid()
{
DataTable dt = new DataTable();
string qu1 = "select * from shop_category";
dt = obj.call(qu1);
if (dt.Rows.Count > 0)
{
Gridcategory.DataSource = dt;
Gridcategory.DataBind();
}
else
{

}
}
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