It's certainly not impossible, but I am now of the opinion that if you want to syncronize the blinking of error icons, your best bet is to change your mind. The whole BindToObject and the internal methods that support it are highly useful and IMO should not have been marked internal.
#Sink errorprovider blink code#
And if we didn't want to lose the data binding ability, that whole thing would have to be re-written (due to the internal code), and I don't even know if it's possible to read Bindings the way that all the internal code does. And besides, who uses the control mirroring ability in WinForms? I mean really, use WPF for that kind of thing! We might avoid all the p/invoke and NativeWindow stuff by replacing it with a PictureBox, a little heavier, but how many controls do you have on your form anyhow? Even after cutting the fat, the amount of work involved is very high. Let's get rid of it too, after all the default icon on the error provider is semetrical, it looks the same whether it's mirrored or not. But then there's this "mirror DC" thing that again uses several internal types (mainly ). Lots of p/invoke here, more copy/pasting. So what if we just cut out all of the data binding ability? You didn't need it right? That leaves us with the NativeWindow implementation used to display the icon. Almost all of that code is found in the data binding ability of the ErrorProvider (I didn't even know ErrorProvider could work off of a DataSet all automagically like that). This thing uses a ton of internal types and internal methods on public types. At first I figured I could just do a copy/paste job from Reflector and modify the timer bits.
Let me rephrase the statement: The only other thing I can think of is to do your own ErrorProvider, but I looked into this for someone else, and the amount of work involved is staggering. I'm re-quoting Deborah's statement to point out that it is a gross understatement. But I looked into this for someone else, and it does not appear to be very easy to do. = ErrorBlinkStyle.The only other thing I can think of is to do your own ErrorProvider. You can also change the blink style to NeverBlink if you don't want to scare the user. = Icon.FromHandle(((Bitmap)imageList.Images).GetHicon()) 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. 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. 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. ErrorProvider presents a simple mechanism for indicating to the end user that a control on a form has an error associated with it.
#Sink errorprovider blink windows#
You need to add an ErrorProvider control to your windows form application.
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. Error Provider control that helps you validation data in c# winform.
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