Answer Posted / sudha

Executereader :-is used with read Method and it will read
the query and fill that in a dataset.we use it in
datareader.

Execute Scalar:-is used when you want a single output.It is
used with Return Value.

ExecuteNonQuery:-This Function is Used When you want to
update your query it does not perform any aoperation like:-
update,deletion,insert.It is used with Perform Action.

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Hi this is the coding for adding data in to an xml table i want the coding for update and delete Try Dim emp_xml_doc As New XmlDocument If System.IO.File.Exists(Server.MapPath("emp.xml")) Then emp_xml_doc.Load(Server.MapPath("emp.xml")) Dim myrow_element As XmlElement myrow_element = emp_xml_doc.CreateElement("EmpDetails") Dim str As String str = "" & TxtEmpId.Text & "" & _ "" & TxtName.Text & "" & _ "" & TxtSalary.Text & "" myrow_element.InnerXml = str emp_xml_doc.DocumentElement.AppendChild(myrow_element) emp_xml_doc.Save(Server.MapPath("emp.xml")) Response.Write("Record Saved") Dim ds As New DataSet ds.ReadXml(Server.MapPath("emp.xml")) GridView1.DataSource = ds GridView1.DataBind() Else Response.Write("File does not exist.") End If Catch ex As Exception Response.Write(ex.ToString) End Try *********************** this is the xml file 100 xxx 2000 yyy dddd 77777 rrrr rrrr 6666 qaqa sini 50000 errrrrrrrr rrrrrrrrr 677777 rrr rrr 33

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