What is the basic purpose of the required field validator? How can you use a required field validator to check that the user changes the initial value of a text box? a listbox?

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How to store a dataset in a viewstate?

3 Answers   Patni,

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What is Difference between Callbacks and Postback in ASP.NET?

11 Answers  

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What is http response header?

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Why do we need master page in asp.net?

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What is viewstate information stored?

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What is localization and Globalization?

3 Answers  

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What is indexing on asp.net?

0 Answers  

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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 = "<EmpID>" & TxtEmpId.Text & "</EmpID>" & _ "<Empname>" & TxtName.Text & "</Empname>" & _ "<EmpSalary>" & TxtSalary.Text & "</EmpSalary>" 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 <?xml version="1.0" encoding="utf-8" ?> <Employee> <empdetails> <empid>100</empid> <empname>xxx</empname> <empsalary>2000</empsalary> </empdetails> <EmpDetails> <EmpID>yyy</EmpID> <Empname>dddd</Empname> <EmpSalary>77777</EmpSalary> </EmpDetails> <EmpDetails> <EmpID>rrrr</EmpID> <Empname>rrrr</Empname> <EmpSalary>6666</EmpSalary> </EmpDetails> <EmpDetails> <EmpID>qaqa</EmpID> <Empname>sini</Empname> <EmpSalary>50000</EmpSalary> </EmpDetails> <EmpDetails> <EmpID>errrrrrrrr</EmpID> <Empname>rrrrrrrrr</Empname> <EmpSalary>677777</EmpSalary> </EmpDetails> <EmpDetails> <EmpID>rrr</EmpID> <Empname>rrr</Empname> <EmpSalary>33</EmpSalary> </EmpDetails> </Employee>

0 Answers   InfoCom,

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What is cache in asp net?

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Define xmlvalidatingreader class.

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What is the difference between abstract class vs interface? Can give me the real time examples?

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