hi how i can filter a datatable with linq to datatable? I have a DropDownList and there I can select the value of the Modul Column. Now I want to filter the DataTable with this Modul Column.
here is my datatable structure:
User | Host | TimeDiff | License | Telefon | Modul
Here the Code:
protected void drp_Modules_SelectedIndexChanged(object sender, EventArgs e)
{
string value = drp_Modules.SelectedValue;
DataTable tb = (DataTable)Session["dt_Users"];
tb = from item in tb //?????
LoadUsertable(tb);
}
You are better of using DataTable.Select
method, but if you have to use LINQ then you can try:
DataTable selectedTable = tb.AsEnumerable()
.Where(r => r.Field<string>("Modul") == value)
.CopyToDataTable();
This would create a new DataTable
based on filtered values.
If you use DataTable.Select
string expression = "Modul =" + value;
DataRow[] selectedRows = tb.Select(expression);