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我有一个按钮，需要获取confirm()值来执行数据库操作。例如：点击按钮时，弹出确认“是或否”的消息，如果是，则在数据库中进行删除操作，如果不是，则清除文本框。如何从 Javascriptconfirm()函数中获取返回值。请指教。

string jScript;

jScript = "<script> function processConfirm(answer) {if (answer) {return 'Facilitator Deleted';}else {return 'Cancelled';}} var confirmAnswer = confirm('You sure to delete ?');var theAnswer = processConfirm(confirmAnswer);alert(theAnswer);</script>";    
ClientScript.RegisterClientScriptBlock(this.GetType(), "keyClientBlock", jScript);         
/* SqlCommand cmd = new SqlCommand("TrainerFilter", conn);    
cmd.CommandType = CommandType.StoredProcedure;        
cmd.Parameters.Add("@EmployeeID", SqlDbType.Int, 50).Value = TextBox1.Text.Trim();        
cmd.Parameters.Add("@result", SqlDbType.Int, 50).Direction = ParameterDirection.Output;        
conn.Open();        
cmd.ExecuteNonQuery();*/
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2 回答 2

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您可以将 confirm_proceed() 的值存储在 asp:HiddenField 您可以按如下方式修改脚本： function confirm_proceed() { var hiddenField = document.getElementById('hiddenFieldId');

   if (confirm("Are you sure you want to proceed?")==true)
   {
     hiddenField.value = 'true';
     return true;
   }
   else
   {
     hiddenField.value = 'false';
     return false;
   }
 }

于 2012-04-20T18:45:59.367 回答
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这有点令人困惑，但假设此确认与按钮单击相关联，您通常会执行以下操作：

<script type="text/javascript">
    processConfirm = function() {
        var result = confirm("Are you sure you want to delete this?");
        if (!result) {
            alert("Cancelled"); //or set a label or whatever
            return false; //cancel postback
        }
        return true; //perform postback
    }
</script>
<asp:Button ID="Button1" runat="server" OnClientClick="return processConfirm();" OnClick="Button1_Click" />

在代码隐藏中：

protected void Button1_Click(object sender, EventArgs e)
{
    //perform the delete logic since because if you reach here
    //you know that the user confirmed

    //throw up an alert when the page is reloaded confirming that the deletion
    //you could also set a label here instead of an alert if you wanted
    Page.ClientScript.RegisterStartupScript(this.GetType(), "confirmDelete", "alert('User was deleted');", true);
}
于 2012-04-20T19:15:22.113 回答