Skip to main content

UI Field Validation in WPF

UI field validation in WPF is a one of most important. Because when the field can't get the Specific class then it will get Error. So it better to create a CheckField()  for specific Button Event & there you can implement the method as:

/******************* A Button Event *****************/
         private void appointAddButton_Click(object sender, RoutedEventArgs e)
        {
            AddAppointmentInListView();


        }
     /************** Implement AddAppointmentInListView Method*****************/
        private void AddAppointmentInListView()
        {
            try
            {
                if (CheckField())
                {
                    EAppointment objAppointment = new EAppointment();
                    objAppointment.TrackNo = Convert.ToInt64(employeeTrackNoTextBox.Text);
                    objAppointment.InterviewId = Convert.ToInt64(employeeIdTextBox.Text);
                    objAppointment.AppointmentDate =  appointDateDateTimePicker.SelectedDate.Value;
                    List<EAppointment> listAppoint = new List<EAppointment>();
                    listAppoint.Add(objAppointment);
                    objAppointment.AppointList = listAppoint;
                    appointlistView.Items.Add(objAppointment);
                    
                }
                
            }
            catch (Exception e)
            {
                MessageBox.Show(e.ToString());
            }
        }
  /************* Implement CheckField Method************/
 /********* Note that you should Declare raiseKeyUp as Global********
/******** private bool raiseKeyUp = true; ********/
     private bool CheckField()
        {
            if (employeeTrackNoTextBox.Text.Trim() == string.Empty)
            {
                MessageBox.Show("Please enter Track Number", "IEMS", MessageBoxButton.OK);
                this.raiseKeyUp = false;
                employeeTrackNoTextBox.Focus();
                return false;
            }
                             return true;
        }

  You can also Make your Validation Field more Glossy if you download the Code from the link:


                 http://www.codeproject.com/KB/WPF/wpfvalidation.aspx
                 http://www.codeproject.com/KB/WPF/RegexValidationInWPF.aspx

  Now see what happen in your validation. Enjoy......!!

Comments

Post a Comment

Popular posts from this blog

WPF datagrid cell textbox change event

Entity/Class: public class FeesDetails : INotifyPropertyChanged { public int Id { get; set; } public string FeesName { get; set;} public string FeesDetailsName { get; set; } public int? PaidAmount { get; set; } public event PropertyChangedEventHandler PropertyChanged; private void NotifyPropertyChanged(System.String info) { if (PropertyChanged != null) { PropertyChanged(this, new PropertyChangedEventArgs(info)); } } public int feesAmount { get; set; } public int FeesAmount { get { return this.feesAmount; } set { if (value != this.feesAmount) { this.feesAmount = value; NotifyPropertyChanged("FeesAmount"); } } } } XAML: <DataGrid AutoGenerateColumns="False" Height="21...
Post a Comment
Read more

mvc razor textboxfor change event change another textboxfor value

Based on value of Weight, Rate , CNF & AWB it will change the value of Freight , TTLCNF anfd TTLFright . Freight= Weight*Rate; TTLCNF  = Weight*CNF; TTLFright=  Freight+ TTLCNF  + AWB; @Html.TextBoxFor(model => model.Weight, new { onChange="return GetWight(this);"}) @Html.TextBoxFor(model => model.Rate, new { onChange="return GetWight(this);"})/Kg @Html.TextBoxFor(model => model.Freight, new {disabled = "disabled" , @readonly = "readonly" ,onChange="return GetTTLFright(this);"}) @Html.TextBoxFor(model => model.CNFPK, new { onChange="return GetCNFPK(this);"}) @Html.TextBoxFor(model => model.TTLCNF, new {disabled = "disabled" , @readonly = "readonly",onChange="return GetTTLFright(this);" }) @Html.TextBoxFor(model => model.AWB, new { onChange="return GetTTLFright(this);"}) and script <script> function GetW...
Post a Comment
Read more

mvvm double click event in listview

If you want to get the double click event on a listview item you can try with this code; <ListView Grid.Row="0" Grid.RowSpan="3" Grid.Column="0" Width="250" Height="200" HorizontalAlignment="Stretch" VerticalAlignment="Top" AlternationCount="2" BorderBrush="#FFA8CC7B" ItemContainerStyle="{StaticResource alternatingStyle}" ItemsSource="{Binding FromPayerNameList}" SelectedItem="{Binding SelectedFromPayer, Mode=TwoWay}"> <ListView.ItemTemplate> <DataTemplate> <TextBlock Width="{Binding Path=ActualWidth, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type ListView}}}" Text=...
Post a Comment
Read more