Requirement: complete an unchangeable dropdown (compliant with certain logic), set the value in JS, and submit the value to the server when submitting the form
1. Try readonly
The result shows that readonly is not valid for dropdown, and users can still select it. We must disable it.
2. Try disable
The result shows that the HTML form does not contain disable members when the form is submitted.
After disable is removed, we can see that the HTML form contains the dropdown v
Build a 64-bit operating system on a VM: This host supports IntelVT-x, but IntelVT-x is disabled
VT-Virtual Technology.
Specifically, the virtual 64-bit operating system requires enabling VT In the BIOS. Tip: This host does not support Intel VT-x, so it is impossible to virtualize a 64-bit system.
When prompted: This host supports Intel VT-x, but Intel VT-x is disabled, you only need to enable the VT fun
Article background: The school machine has two users think and Adminsitrator. The default administrator is disabled and think belongs to the Administrators group . The problem arose out of the wrong line. Because the students are think users, Windows defaults to using think to log in first. I have disabled the think user when I open the share, so I start to error "The user has been
mzq-f4-s2960#Mzq-f4-s2960#show Interfaces Status err-disabledPort Name Status Reason err-disabled VlansGI1/0/28 err-disabled psecure-violationGI1/0/46 err-disabled psecure-violationMzq-f4-s2960#conf teEnter configuration commands, one per line. End with cntl/z.mzq-f4-s2960 (config) #intermzq-f4-s2960 (config) #interface gmzq-f4-s2960 (config) #interface G1/0/28mz
The difference between the readonly and disabled attributes of a label:In form elements, ReadOnly and disable have similarities, because they all can set some form elements to "not available" state, of course, the difference between them is huge, the following is about the two attributes of the difference, I hope to be able to bring some help to the needs of friends.Two attributes are enumerated in different points:The 1.readonly property is valid onl
Solve ThinkPHP's summary of errors reported when the debug mode is disabled. Solve ThinkPHP disable debug mode errors summary This article summarizes some of my problems encountered in the project to solve ThinkPHP disable debug mode errors problem summary
Solve ThinkPHP errors reported when the debug mode is disabled.
This article summarizes several situations that I encountered when I
Due to my negligence, I forgot to set a password for redis I installed two months ago and bound it to a public IP address. so I opened redis today and saw the crackit field injected, the value is an ssh-rsa, but it seems that my root password has not been changed during this period. does it mean that he only needs to note...
Due to my negligence, I forgot to set a password for redis I installed two months ago and bound it to a public IP address. so I opened redis today and saw the crackit field
If selinux is not disabled, httpd cannot use non-80 or other default ports. in this case, the httpd port is changed to 9080, and the following prompt is displayed: [root @ haifeng ~] # ServicehttpdstartStartinghttpd :( 13) Permissiondenied: make_sock: couldnot... if selinux is not disabled, httpd cannot use non-80 or other default ports. in this case, the httpd port is changed to 9080, and the following pro
In the daily operations of Exchange 2013, we often encounter disabling mailbox accounts and recovering disabled mailboxes to achieve some of the specific purposes of employee mailbox management, today brings you some relevant content and some key points.First, create a new test user "Zhang San", and turn on the Exchange mailbox feature, send a test message to have the actual message in its database file, so you can see the link effect later.650) this.
A client I recently wroteProgramIf a problem occurs, that is, when many users are offline at the same time (for example, unplugging the network cable from a computer on many clients), the server may have an exception at a very low probability. Abnormal trace shows that this is caused by writing data to closed tcpclient. Specifically, when networkstream. beginwrite method is called, invalidoperationexception occurs. The message is "write operation not supported ". This exception did not even appe
(1) Scenario: In iOS8.1, we usually use the following statement to set the Global navigation bar button item's themeUibarbuttonitem *item=[uibarbuttonitem appearance]; Nsmutabledictionary *textattrs=[nsmutabledictionary dictionary];textattrs[nsforegroundcolorattributename]=[ Uicolor Orangecolor]; [item Settitletextattributes:textattrs Forstate:uicontrolstatenormal]; [item Settitletextattributes:textattrs forstate:uicontrolstatehighlighted]; Nsmutabledictionary *dtextattrs=[nsmutabledictionary
How to make the content in input read-only, that is, the user is not allowed to change the content.
We recommend that you do not use disabled. Otherwise, you will not be able to retrieve the value.
Differences:1. disabled -- cannot be edited at all, and cannot be copied.2. readonly -- not editable, but can be copied.3. Readonly is only valid for input (text/password) and textarea, while
Because Easyui controls are encapsulated, the usual jquery code settings do not work, such as $ (' #id '). attr ("ReadOnly", "ReadOnly").so we chose to add a class qualifier to the upper-level element div of input, such asCharacter Id at this point, the code to set input as read-only is as follows:$ (". Test:text"). attr ("ReadOnly", "ReadOnly");for disabled, there are:$ (". Test:text"). attr ("Disabled",
Solve ThinkPHP errors reported when the debug mode is disabled.
Solve ThinkPHP errors reported when the debug mode is disabled.
This article summarizes several situations that I encountered when I disabled the ThinkPHP debugging mode in my project and the final solution. It is very simple and practical. I will share it with you here, if you have any need, refer.
C #: Disable comboboxthis. combobox7.disabled =true;C #: HideID= "Radiog_sfzg" runat= "Server" GroupName= " Radiogroup " fieldlabel=" Whether the first Cls=" X-check-group-alt " Visible=" false "> uses visible=" false "for this property, No similar settings were found in the background.aspx"Radiog"runat="Server"Groupname="Radiogroup"Fieldlabel="whether the first "cls="X-check-group-alt"> "Radio1"runat="Server"Boxlabel="is a"Inputvalue="1"> "Radi
Today, installing the 64-bit CentOS on the virtual machine and reporting intelvtx in the disabled state, the workaround is logged as follows.1. Error message:2. How to enter the BIOS :Ibm/thinkpad laptop to enter the BIOS method is: In cold boot (note is not restarted)When the IBM flag appears on the screen, and you are prompted in the lower-left corner, press the F1 key. After pressing the F1 key, a little later will enter the BIOS interface.The virt
The user's Windows 7 system has an overnight download, the next day found that do not know why not on the net, and then know that the network card is disabled, the following is to prevent the network card is disabled settings method.
1. Right-click the computer icon and select Properties in the pop-up right-click menu.
2. On the Control Panel home page, click Device Manager with the left mouse button.
3,
--word macros have been disabled workaround
Method One, Word Options--> Add-ins--> manage "COM add-ins," and go to--> the "Manuscript Wizard, calligraphy add-in, office special symbol input add-in" three cancel--> OK.
Method Two, tool--> macro-> security--> a trusted publisher, empty the hook in the selection box below, and then change the macro security to the highest.
Method Three, you may be the first time you installed Office in the share of VB
Many people accustomed to the Win7 system know that the Win7 system login is the default administrator account, do not manually select which account, the system will automatically default to the Administrator account. However, after upgrading to the WIN8 system, the system no longer defaults to the administrator account, with more choices, we can select a local account for login, which for users to have more selectivity, is a good thing, and the protection of the system is also a great progress,
Computers in the process of connecting the network will inevitably encounter frequent drop, connection errors or network can not connect to the disabled, and so on, there are many reasons for these symptoms. Recently, a user win7 64-bit system desktop found in the lower right corner of the network connection icon turned into a red fork, and the network is not connected, this situation is very likely that the network is
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