Suggested case list:
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4kevinLin162.158.90.1302t6ttoiApr 14, 2025 3:53:35 AMlinkresources
index.zulzul<zk>
<window viewModel="@id('vm') @init('pkg$.TextBoxViewModel')" apply="org.zkoss.bind.BindComposer" validationMessages="@id('vmsgs')">
onChange invalid
<textbox value="@bind(vm.textValue)" maxlength="1" onChange="@command('validateInput')"/>
Validator invalid
<textbox id="tb" value="@bind(vm.validatorValue) @validator(vm.inputRangeValidator)" maxlength="1"/>
<label value="@load(vmsgs[tb])" />
</window>
</zk>
TextBoxViewModel.javajavaimport org.zkoss.zk.ui.*;
import org.zkoss.zk.ui.event.*;
import org.zkoss.zk.ui.util.*;
import org.zkoss.zk.ui.ext.*;
import org.zkoss.zk.au.*;
import org.zkoss.zk.au.out.*;
import org.zkoss.zul.*;
import org.zkoss.bind.annotation.*;
import org.zkoss.bind.validator.AbstractValidator;
import org.zkoss.bind.ValidationContext;
import org.zkoss.bind.Validator;
import org.zkoss.bind.BindUtils;
public class TextBoxViewModel {
private String textValue = "";
private String validatorValue = "";
private Validator inputRangeValidator = new InputRangeValidator();
public Validator getInputRangeValidator() {
return this.inputRangeValidator;
}
public String getTextValue() {
return this.textValue;
}
public void setTextValue(String textValue) {
this.textValue = textValue;
}
public String getValidatorValue() {
return this.validatorValue;
}
public void setValidatorValue(String validatorValue) {
this.validatorValue = validatorValue;
}
@Command
@NotifyChange("textValue")
public void validateInput() {
if (textValue != null && !textValue.matches("^[A-Ja-j]*$")) {
Clients.showNotification("Only letters A to J or a to j are allowed!",
Clients.NOTIFICATION_TYPE_ERROR, null, "top_center", 3000);
textValue = "";
}
}
public class InputRangeValidator extends AbstractValidator {
@Override
public void validate(ValidationContext ctx) {
String value = (String) ctx.getProperty().getValue();
if (value != null && !value.matches("^[A-Ja-j]*$")) {
addInvalidMessage(ctx, "Only letters A to J (uppercase or lowercase) are allowed.");
validatorValue = "";
BindUtils.postNotifyChange(null, null, TextBoxViewModel.this, "validatorValue");
}
}
}
}