如何阻止此操作？ [英] How do I prevent this action?
问题描述
在多文本框表格中，链接到外部js，我使用onBlur来调用：
函数chkNum（cellname）{
var str = document.getElementById（cellname）.value.toString（10）;
if（str< 28 || str> 36）{alert（"输入的温度超出范围。） ;）;
返回;}
}
我将数据输入第一个文本框并将光标移动到第二个
文本框。正确调用该函数。由于textbox2为空，当我将光标移回textbox1时，我再次（适当地）获取警报。
如何防止这种情况？
-
Ed Jay（删除M以通过电子邮件回复）
On a multi-textbox form, linked to an external js, I use onBlur to call:
function chkNum(cellname) {
var str = document.getElementById(cellname).value.toString(1 0);
if (str < 28 || str > 36) {alert("Temperature entered is out of range.");
return;}
}
I enter data into the first textbox and move the cursor to the second
textbox. The function is properly called. Since textbox2 is empty, when I
move the cursor back to textbox1, I again (appropriately) get the alert.
How can I prevent this?
--
Ed Jay (remove M to respond by email)
推荐答案
On 21 / 12/2005 22：40，Ed Jay写道：
On 21/12/2005 22:40, Ed Jay wrote:
[...]我用onBlur来打电话：
[...] I use onBlur to call:
^^^ ^^^
使用更改事件并验证以响应提交事件。
应谨慎使用模糊事件。太多的东西都可能导致
控制失去焦点，因此如果用户/他们/更改了某个值并进入了价值无效。
[snip]
Mike
-
Michael Winter
在通过电子邮件回复之前使用[新闻]进行前缀主题。
^^^^^^
Use the change event and validate in response to the submit event, too.
The blur event should be used sparingly. Too many things can cause a
control to lose focus, so it''s kinder to the user to only bug them if
they /changed/ a value and entered an invalid value.
[snip]
Mike
--
Michael Winter
Prefix subject with [News] before replying by e-mail.
Ed Jay在12/21上说了以下内容/ 2005 5:40 PM：
Ed Jay said the following on 12/21/2005 5:40 PM:
在多文本框表单上，链接到外部js，我使用onBlur调用：
函数chkNum（cellname）{
var str = document.getElementById（cellname）.value.toString（10）;
if（str< 28 || str> 36）{alert（"输入的温度超出范围。） ;）;
返回;}
我将数据输入第一个文本框并将光标移动到第二个
文本框。正确调用该函数。由于textbox2为空，当我将光标移回textbox1时，我再次（适当地）获取警报。
我该如何防止这种情况？
On a multi-textbox form, linked to an external js, I use onBlur to call:
function chkNum(cellname) {
var str = document.getElementById(cellname).value.toString(1 0);
if (str < 28 || str > 36) {alert("Temperature entered is out of range.");
return;}
}
I enter data into the first textbox and move the cursor to the second
textbox. The function is properly called. Since textbox2 is empty, when I
move the cursor back to textbox1, I again (appropriately) get the alert.
How can I prevent this?
设置范围内文本框的值。
< input type =" text"值= QUOT; 28" .....>
-
兰迪
comp.lang.javascript常见问题 - http://jibbering.com/faq &新闻组每周
Javascript最佳实践 - http：//www.JavascriptToolbox .com / bestpractices /
Set the value of the textbox within range.
<input type="text" value="28" .....>
--
Randy
comp.lang.javascript FAQ - http://jibbering.com/faq & newsgroup weekly
Javascript Best Practices - http://www.JavascriptToolbox.com/bestpractices/
Lee< RE ************** @ cox.net>写道：
Lee <RE**************@cox.net> wrote:
Ed Jay说：
在多文本框表格中，链接到外部js，我使用onBlur来调用：
函数chkNum（cellname）{
var str = document.getElementById（cellname）.value.toString（10）;
if（str< 28 || str> 36）{alert（输入的温度超出范围。）;
返回;}
我将数据输入第一个文本框并将光标移动到第二个
文本框。正确调用该函数。由于textbox2为空，当我将光标移回textbox1时，我再次（适当地）获取警报。
我该怎样防止这种情况？
On a multi-textbox form, linked to an external js, I use onBlur to call:
function chkNum(cellname) {
var str = document.getElementById(cellname).value.toString(1 0);
if (str < 28 || str > 36) {alert("Temperature entered is out of range.");
return;}
}
I enter data into the first textbox and move the cursor to the second
textbox. The function is properly called. Since textbox2 is empty, when I
move the cursor back to textbox1, I again (appropriately) get the alert.
How can I prevent this?
Don对布鲁尔进行审计。请改用onChange。
Don''t audit onBlur. Use onChange, instead.
Lee，Mike，Randy ...非常感谢。
-
Ed Jay（删除M以通过电子邮件回复）
Lee, Mike, Randy...Thanks very much.
--
Ed Jay (remove M to respond by email)
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