Sitecore CustomValidator不会在WFFM自定义字段上触发 [英] Sitecore CustomValidator does not fire on WFFM custom field

问题描述

我尝试在Sitecore上的WFFM上扩展SingleLineText字段.该字段将具有CustomValidator.但是，当页面回发时，ServerValidate事件不会触发.下面的代码片段.

I've try to extend SingleLineText field on WFFM on Sitecore. This field will have CustomValidator. But ServerValidate event does not fire when page postbacked. The snipped code below.

public class SingleLineText : Sitecore.Form.Web.UI.Controls.SingleLineText
{
   protected override void OnInit(EventArgs e)
   {
       base.OnInit(e);

       var validator = new CustomValidator() { Display = ValidatorDisplay.None };
       validator.ServerValidate += this.Validator_ServerValidate;
       this.generalPanel.Controls.Add(validator);
    }
    protected void Validator_ServerValidate(object source, ServerValidateEventArgs args)
    {
         // does not fire
         var validator = source as IValidator;
         args.IsValid = this.IsValid(validator);
    }
}

相同的代码在具有ascx的ustom用户控制字段上可以正常工作.

The same code works fine on ustom user control field which has ascx.

推荐答案

您将需要将验证代码移至实现FormCustomValidator的新类.

You will want to move your validation code to a new class that implements FormCustomValidator.

public class MySingleLineTextValidator : FormCustomValidator
{ 
    protected override bool EvaluateIsValid()
    {
        if (!String.IsNullOrEmpty(base.ControlToValidate))
        {
            Control controlToValidate = this.FindControl(base.ControlToValidate);
            //Code to validate
        }

        return false;
    }}

然后，您将需要在WFFM验证文件夹中添加一个BaseValidator项，通常是此路径； /sitecore/system/Modules/Web Forms for Marketers/Settings/Validation.将程序集和类添加到该项目.

Then you will need add a BaseValidator Item in the WFFM Validation Folder, usually this path; /sitecore/system/Modules/Web Forms for Marketers/Settings/Validation. Add the assembly and class to the item.

现在针对您的自定义字段，在Validation字段中添加新的BaseValidator项.

Now against your custom Field, add the your new BaseValidator item in the Validation field and that's it.

请参见 wffm自定义表单验证器以获取完整示例

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