Dataset with DataRelation

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Here is a code if i want to add rows to a table, so that, table can be used as DataSource for DataGridview but line 8 raises error (error: - This row already belongs to another table). Please help how i could add those row to a table

C#

DataRelation customerOrdersRelation =
    customerOrders.Relations.Add("CustOrders",
    customerOrders.Tables["Customers"].Columns["CustomerID"],
    customerOrders.Tables["Orders"].Columns["CustomerID"]);
DataTable dt=new DataTable();
foreach (DataRow custRow in customerOrders.Tables["Customers"].Rows)
{
   dt.Rows.Add(custRow); // raise error. Line 8

    foreach (DataRow orderRow in custRow.GetChildRows(customerOrdersRelation))
    {
        // some code 
    }
}

Thank U.

Posted 7-Dec-13 23:21pm

Brijesh Kr

Updated 7-Dec-13 23:38pm

v2

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joginder-banger 8-Dec-13 5:23am

what's type of error you getting or Name of error.

Brijesh Kr 8-Dec-13 5:38am

error: - This row already belongs to another table

1 solution

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Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) · Answer 1 · 2013-12-08T00:47:00

Solution 1

Refer- copy rows from Datatable to another Datatable c#[^].

C#

foreach (DataRow dr in dataTable1.Rows) {
    if (/* some condition */)
        dataTable2.Rows.Add(dr.ItemArray);
}

Posted 8-Dec-13 0:47am

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)