= Icon.FromHandle(((Bitmap)imageList.Images).GetHicon()) Many events and properties are available on this control. It is added with the Visual Studio designer.
It is part of the Windows Forms platform and is used with C code. This lets users type letters and enter data. Create a TextBox with the Visual Studio designer. If you want to change icon errorprovider c#, you can add an imagelist control to your winform, then set icon to the error provider control as the following c# code. Use the TextBox control to allow text to be entered. ErrorProvider(IContainer) Initializes a new instance of the ErrorProvider class attached to an IContainer implementation. Using c# errorprovider check if error through the Validating event handler. To clear error provider c# you can call the SetError method, then set value to null. ErrorProvider() Initializes a new instance of the ErrorProvider class and initializes the default settings for BlinkRate, BlinkStyle, and the Icon. If (string.IsNullOrEmpty(txtUsername.Text))ĮrrorProvider.SetError(txtUsername, "Please enter your user name !") ĮrrorProvider.SetError(txtUsername, null) private void txtUsername_Validating(object sender, CancelEventArgs e) MessageBox.Show(txtUsername.Text, "Message", MessageBoxButtons.OK, MessageBoxIcon.Information) Īdd the validating event handler to the TextBox allows you to check validate the TextBox control. If (ValidateChildren(ValidationConstraints.Enabled)) private void btnLogin_Click(object sender, EventArgs e) Next, add the click event handler to the Login button as the following c# code. If an error description string is specified for the control, an icon appears next to the control. I have also created a button but there is no use for it (in the example). Set text boxes are named txtname and txtage. ErrorProvider presents a simple mechanism for indicating to the end user that a control on a form has an error associated with it. Place two text boxes (for getting name and age) and three ErrorProvider controls from the toolbox. You need to add an ErrorProvider control to your windows form application. Unlike the standard ErrorProvider component, the DXErrorProvider. To play the demo, you should create a new windows forms application project, next enter your project name is "ValidateDemo " and then click OK button.ĭrag the TextBox, Label and Button from your visual studio toolbox to your winform, then design a simple UI login form as shown below. Provides error management for DevExpress bound and unbound. Error Provider control that helps you validation data in c# winform.