��权限没有,则隐藏 function forum_list_access_filter($forumlist, $gid, $allow = 'allowread') { global $grouplist; if (empty($forumlist)) return array(); if (1 == $gid) return $forumlist; $forumlist_filter = $forumlist; $group = $grouplist[$gid]; foreach ($forumlist_filter as $fid => $forum) { if (empty($forum['accesson']) && empty($group[$allow]) || !empty($forum['accesson']) && empty($forum['accesslist'][$gid][$allow])) { unset($forumlist_filter[$fid]); } unset($forumlist_filter[$fid]['accesslist']); } return $forumlist_filter; } function forum_filter_moduid($moduids) { $moduids = trim($moduids); if (empty($moduids)) return ''; $arr = explode(',', $moduids); $r = array(); foreach ($arr as $_uid) { $_uid = intval($_uid); $_user = user_read($_uid); if (empty($_user)) continue; if ($_user['gid'] > 4) continue; $r[] = $_uid; } return implode(',', $r); } function forum_safe_info($forum) { //unset($forum['moduids']); return $forum; } function forum_filter($forumlist) { foreach ($forumlist as &$val) { unset($val['brief'], $val['announcement'], $val['seo_title'], $val['seo_keywords'], $val['create_date_fmt'], $val['icon_url'], $val['modlist']); } return $forumlist; } function forum_format_url($forum) { global $conf; if (0 == $forum['category']) { // 列表URL $url = url('list-' . $forum['fid'], '', FALSE); } elseif (1 == $forum['category']) { // 频道 $url = url('category-' . $forum['fid'], '', FALSE); } elseif (2 == $forum['category']) { // 单页 $url = url('read-' . trim($forum['brief']), '', FALSE); } if ($conf['url_rewrite_on'] > 1 && $forum['well_alias']) { if (0 == $forum['category'] || 1 == $forum['category']) { $url = url($forum['well_alias'], '', FALSE); } elseif (2 == $forum['category']) { // 单页 $url = ($forum['threads'] && $forum['brief']) ? url($forum['well_alias'] . '-' . trim($forum['brief']), '', FALSE) : url($forum['well_alias'], '', FALSE); } } return $url; } function well_forum_alias() { $forumlist = forum_list_cache(); if (empty($forumlist)) return ''; $key = 'forum-alias'; static $cache = array(); if (isset($cache[$key])) return $cache[$key]; $cache[$key] = array(); foreach ($forumlist as $val) { if ($val['well_alias']) $cache[$key][$val['fid']] = $val['well_alias']; } return array_flip($cache[$key]); } function well_forum_alias_cache() { global $conf; $key = 'forum-alias-cache'; static $cache = array(); // 用静态变量只能在当前 request 生命周期缓存,跨进程需要再加一层缓存:redis/memcached/xcache/apc if (isset($cache[$key])) return $cache[$key]; if ('mysql' == $conf['cache']['type']) { $arr = well_forum_alias(); } else { $arr = cache_get($key); if (NULL === $arr) { $arr = well_forum_alias(); !empty($arr) AND cache_set($key, $arr); } } $cache[$key] = empty($arr) ? '' : $arr; return $cache[$key]; } ?>javascript - Disable textboxes on check changed - Stack Overflow
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javascript - Disable textboxes on check changed - Stack Overflow

programmeradmin4浏览0评论

I have a checkbox that disables 2 textboxes when checked. When it is unchecked it enables the checkboxes. Here is the JavaScript:

function enableField() {
    prePracticeCodeTextBox = document.getElementById('prePracticeCodeTextBox');
    preContactTextBox = document.getElementById('preContactTextBox');
    checkTheBox = document.getElementById('CheckBox1');
    if (checkTheBox.checked == true) {
        prePracticeCodeTextBox.disabled = false;
        preContactTextBox.disabled = false;

    }
    else {
        prePracticeCodeTextBox.disabled = true;
        preContactTextBox.disabled = true;
    }
}

Here is the HTML:

<dl>
    <dt><label for="CheckBox1">PreAnalytical?</label></dt>
    <dd> <asp:CheckBox ID="CheckBox1" runat="server" CausesValidation="false"
                            Visible="true" OnCheckChanged="enableField()"/></dd>
</dl>
<dl>
    <dt><label for="prePracticeCodeTextBox">Practice Code:</label></dt>
    <dd><asp:TextBox ID="prePracticeCodeTextBox" runat="server" Enabled="False" /></dd>
</dl>
<dl>
    <dt><label for="preContactTextBox">Contact:</label></dt>
    <dd><asp:TextBox ID="preContactTextBox" runat="server" Enabled="False" /></dd>
</dl>

The JavaScript function is not being called at all.

What am I doing wrong?

I have a checkbox that disables 2 textboxes when checked. When it is unchecked it enables the checkboxes. Here is the JavaScript:

function enableField() {
    prePracticeCodeTextBox = document.getElementById('prePracticeCodeTextBox');
    preContactTextBox = document.getElementById('preContactTextBox');
    checkTheBox = document.getElementById('CheckBox1');
    if (checkTheBox.checked == true) {
        prePracticeCodeTextBox.disabled = false;
        preContactTextBox.disabled = false;

    }
    else {
        prePracticeCodeTextBox.disabled = true;
        preContactTextBox.disabled = true;
    }
}

Here is the HTML:

<dl>
    <dt><label for="CheckBox1">PreAnalytical?</label></dt>
    <dd> <asp:CheckBox ID="CheckBox1" runat="server" CausesValidation="false"
                            Visible="true" OnCheckChanged="enableField()"/></dd>
</dl>
<dl>
    <dt><label for="prePracticeCodeTextBox">Practice Code:</label></dt>
    <dd><asp:TextBox ID="prePracticeCodeTextBox" runat="server" Enabled="False" /></dd>
</dl>
<dl>
    <dt><label for="preContactTextBox">Contact:</label></dt>
    <dd><asp:TextBox ID="preContactTextBox" runat="server" Enabled="False" /></dd>
</dl>

The JavaScript function is not being called at all.

What am I doing wrong?

Share Improve this question edited Oct 10, 2014 at 19:50 DanM7 2,2463 gold badges29 silver badges47 bronze badges asked Sep 22, 2011 at 21:54 Alex GordonAlex Gordon 60.9k304 gold badges703 silver badges1.1k bronze badges
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3 Answers 3

Reset to default 3

Try to use onclick instead. Use the following code to register it on your code behind :

CheckBox1.Attributes.Add("onclick", "enableField();");

BTW, you won't be able to reach the elements as you do on asp web forms application with default settings. You need to get the ClientIDs of the elements which will be rendered :

function enableField() {
    prePracticeCodeTextBox = document.getElementById('<%=prePracticeCodeTextBox.ClientID%>');
    preContactTextBox = document.getElementById('<%=preContactTextBox.ClientID%>');
    checkTheBox = document.getElementById('<%=CheckBox1.ClientID%>');
    if (checkTheBox.checked == true) {
        prePracticeCodeTextBox.disabled = false;
        preContactTextBox.disabled = false;

    }
    else {
        prePracticeCodeTextBox.disabled = true;
        preContactTextBox.disabled = true;
    }


}

If you are developing on 4, read the below article :

http://www.tugberkugurlu./archive/we-lovenet-4-clean-web-control-ids-with-clientidmode-property-to-static-and-predictable

Change OnCheckChanged="enableField() to onclick="enableField();". You are using server controls. OnCheckChanged is an event for the asp CheckBox control.

function enableField() {

prePracticeCodeTextBox =.getElementById('<%=prePracticeCodeTextBox.ClientID%>');
preContactTextBox = document.getElementById('<%=preContactTextBox.ClientID%>');
checkTheBox = document.getElementById('<%=CheckBox1.ClientID%>');

if (checkTheBox.checked == true) {

    prePracticeCodeTextBox.disabled = false;
    preContactTextBox.disabled = false;

}
else {

    prePracticeCodeTextBox.disabled = true;
    preContactTextBox.disabled = true;
}

}

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