This property can be used as the source for data binding.When this property is modified, it dispatches the The number of items in this view.Since this is an After Event (as explained in one of the earlier post “ This scenario will talk about validating user inputs and terminate the execution as soon as the input value falls outside the valid value range.For instance in this demo we are assuming a hypothetical business requirement demanding “”. To String() End Sub The logic here is similar to the above with one difference, here the Data Form Item available in the arguments is actually a Rad Data Form Insert Item. To String()))) End Sub private static readonly Random random = new Random(); static string contact Names = new string ; static string company Names = new string ; static string contact Titles = new string ; public List data Source [Serializable] public class Customer protected void Rad Data Form1_Item Updating(object sender, Rad Data Form Command Event Args e) protected void Rad Data Form1_Item Inserting(object sender, Rad Data Form Command Event Args e) protected void Rad Data Form1_Item Deleting(object sender, Rad Data Form Command Event Args e) protected void Rad Data Form1_Need Data Source(object sender, Rad Data Form Need Data Source Event Args e) Private Shared Read Only random As New Random() Shared contact Names As String() = New String() Shared company Names As String() = New String() Shared contact Titles As String() = New String() Public Property data Source() As List(Of Customer) Get Dim obj As Object = Session("Data Source") If obj Is Nothing Then Dim customers As New List(Of Customer)() Dim customer Index As Integer = random.[Next]() Mod 10 For i As Integer = 0 To 29 Dim customer As New Customer() customer. Contact Title = contact Titles(customer Index) customer. Item Updating, Address Of rdf_Item Updating Add Handler rdf. Instantiate In 'create some controls to show data t Box Company Name = New Text Box() t Box Company Name. Enabled = False End If lbl Contact Name = New Label() lbl Contact Name. Receives an iterator function and invokes it once per each field changed with the last server update.
If you use paging, apply the filter to the remote collection before you retrieve the data.0 means no items, while -1 means that the length is unknown.When this property is modified, it dispatches the method after setting this property.Note that if the Subscription mode of the involved Subscription is COMMAND, then changed fields are meant as relative to the previous update for the same key.On such tables if a DELETE command is received, all the fields, excluding the key field, will be iterated as changed, with null value.