JavaScript警告问题 [英] Javascript alert problem

问题描述

我想补充一个警告框，让用户可以选择是或否或确定和取消，但它不工作correctly.I必须做一个数据库检查是在C做尖锐而不仅仅是链接功能按钮点击事件。这是我想做到这一点我的第一次。我使用Visual Studio 2010中，我不知道如果我的code是正确的。任何人都可以请指导我，如果我错了。

 私人无效AlertWithConfirmation（）
           {
            的Response.Write（＆LT; SCRIPT LANGUAGE =JavaScript的'＆gt;中）;
            回复于（功能onsub（））;
            的Response.Write（{）;
            的Response.Write（回归确认（\\你确定\\））;
            的Response.Write（}）;
            回复于（＆下; /脚本＆gt;中）;
           }
 

这是我的完整的C＃code：

 保护无效Import_Click（对象发件人，EventArgs的发送）
    {
        如果（！Validation.ValidateDateFormat（dateField.Text））
        {
            errorMessageLabel.Text =无效的日期格式，例如：2011/1/1应该是01/01/2011
        }
        其他
        {
            //验证数据是否已经导入
            如果（BusinessLayerHandler.isImported（dateField.Text）== FALSE）
            {
                尝试
                {
                    如果（BusinessLayerHandler.isInProgress（dateField.Text）==真）
                    {
                        AlertWithConfirmation（）;
                    }
                }
                抓住
                {
                    // catch错误
                }
            }
            否则，如果（BusinessLayerHandler.isImported（dateField.Text）==真）
            {
                警报（那日期已经进口）;
            }
        }
 

解决方案

您code是完全正确的。只有语法错误。刚开始的线 - 双引号之前删除\\>
的Response.Write（回归确认（\\你确定\\））;结果
与此行结果替换
的Response.Write（返回确认（你确定\\））;

I am trying to add an alert box so that the user can choose either Yes or No or Ok and Cancel, but it is not working correctly.I have to do a database check which is done in c sharp not just link that function to a button clicked event. It is my first time I am trying to do this. I am using visual studio 2010. I am not sure if my code is correct. Can anyone please guide me if I am mistaken.

         private void AlertWithConfirmation()
           {
            Response.Write("<script language='javascript'>"); 
            Response.Write("function onsub() "); 
            Response.Write("{ "); 
            Response.Write("return confirm(\"Are you sure?\")"); 
            Response.Write("} "); 
            Response.Write("</script>");
           }

This is my full C# Code:

    protected void Import_Click(object sender, EventArgs e)
    {
        if (!Validation.ValidateDateFormat(dateField.Text))
        {
            errorMessageLabel.Text = "Invalid Date Format, for example: 1/1/2011 should be 01/01/2011";
        }
        else
        {
            //Validation to check if data is already imported
            if (BusinessLayerHandler.isImported(dateField.Text) == false)
            {
                try
                {
                    if (BusinessLayerHandler.isInProgress(dateField.Text)== true)
                    {
                        AlertWithConfirmation();
                    }
                }
                catch
                {
                    //catch error
                }
            }
            else if (BusinessLayerHandler.isImported(dateField.Text) == true)
            {
                Alert("That date was already imported");
            }
        }

解决方案

your code is absolutely correct. only syntax error. just remove "\" before starting the double quotes in the line-> Response.Write("return confirm(\"Are you sure?\")");
replace with this line
Response.Write("return confirm("Are you sure?\")");

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