怎样的JavaScript挂钩到在.net我CustomValidator控件 [英] How do I hook up javascript to my CustomValidator control in .Net

问题描述

我创建了一个CustomValidator控件

 公共类MyValidator：的CustomValidator，IScriptControl {}
 

和也创造了相当的客户端脚本。服务器验证工作正常，但是我怎么连接我的客户端脚本？

渲染JavaScript的样子

  VAR MyValidator1 =的document.all？的document.all [MyValidator1]：的document.getElementById（MyValidator1）;
MyValidator1.controltovalidate =MyField的;
MyValidator1.errormessage =错误;
MyValidator1.evaluationfunction =MyValidatorEvaluateIsValid;
 

我如何重写生成的JavaScript设置evaluationfunction的价值？例如。

  MyValidator1.evaluationfunction =MyCustomJavascriptFunction;
 

解决方案

我已经回答了这个自己为对方的回答并没有完全实现正是我想要的。我结束了使用。

 公共类MyValidator：BaseValidator，IScriptControl {  保护覆盖无效的AddAttributesToRender（HtmlTextWriter的作家）{
    base.AddAttributesToRender（作家）;
    Page.ClientScript.RegisterExpandoAttribute（this.ClientIDevaluationfunction，MyJavascriptFunction）;
  }}
 

这将导致控制以生成：

  MyValidator1.evaluationfunction =MyJavascriptFunction;
 

I have created a CustomValidator control

public class MyValidator :CustomValidator, IScriptControl {}

and also created the equivalent client script. The server validation works fine, however how do I hook up my client script?

The rendered javascript looks like

var MyValidator1 = document.all ? document.all["MyValidator1"] : document.getElementById("MyValidator1");
MyValidator1.controltovalidate = "MyField";
MyValidator1.errormessage = "error";
MyValidator1.evaluationfunction = "MyValidatorEvaluateIsValid";

How do I override the generated javascript to set the value of evaluationfunction? E.g.

MyValidator1.evaluationfunction = "MyCustomJavascriptFunction";

解决方案

I've answered this myself as the other answer didn't quite achieve exactly what I wanted. I ended up using.

public class MyValidator : BaseValidator, IScriptControl  {

  protected override void AddAttributesToRender(HtmlTextWriter writer) {
    base.AddAttributesToRender(writer);
    Page.ClientScript.RegisterExpandoAttribute(this.ClientID, "evaluationfunction", "MyJavascriptFunction");
  }

}

Which will cause the control to generate:

MyValidator1.evaluationfunction = "MyJavascriptFunction";

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