How to show MessageBox on asp net

Question

if I need to show a MessageBox on my ASP NET WebForm  how to do it   I try  Messagebox show  dd     But it s not working

User · Answer

You may use MessageBox if you want but it is recommended to use alert  from JavaScript  instead   If you want to use it you should write   System Windows Forms MessageBox Show  Test         Note that you must specify the namespace

User · Answer

It s true that Messagebox show  dd    is not a part of using System Web    I felt the same situation for most of time  If you want to do this then do the following steps    Right click on project in solution explorer go for add reference  then choose  NET tab And select  System windows forms  press  s  to find quickly    u can get the namespace  now u can use Messagebox show  dd     But I recommend to go with javascript alert for this

User · Answer

Messagebox is for windows only  You have to use Javascript  Alert  dd

User · Answer

Message box is only defaultly available for windows form application If you want to use the message box resource the you would have to use  using system windows forms  to enable the message box for web forms mode

User · Answer

I took the code from the brilliant  KrisVanDerMast and made it wrapped up in a static method that can be called as many times as you want on the same page        lt summary gt      Shows a basic MessageBox on the passed in page      lt  summary gt       lt param name  page  gt The Page object to show the message on lt  param gt       lt param name  message  gt The message to show lt  param gt       lt returns gt  lt  returns gt  public static ShowMessageBox Page page  string message        Type cstype   page GetType            Get a ClientScriptManager reference from the Page class      ClientScriptManager cs   page ClientScript          Find the first unregistered script number     int ScriptNumber   0      bool ScriptRegistered   false      do               ScriptNumber            ScriptRegistered   cs IsStartupScriptRegistered cstype   PopupScript    ScriptNumber         while  ScriptRegistered    true          Execute the new script number that we found     cs RegisterStartupScript cstype   PopupScript    ScriptNumber   alert      message          true

User · Answer

There is pretty concise and easy way   Response Write   lt script gt alert  Your text    lt  script gt

User · Answer

You could just simply write but you have to use JavaScript regardless   Page ClientScript RegisterStartupScript Page GetType     Message Box     lt script language    javascript  gt alert  dd   lt  script gt

User · Answer

MessageBox doesn t exist in ASP NET  If you need functionality in the browser  like showing a message box  then you need to opt for javascript  ASP NET provides you with means to inject javascript which gets rendered and executed when the html sent to the browser s loaded and displayed  You can use the following code in the Page Load for example   Type cstype   this GetType        Get a ClientScriptManager reference from the Page class  ClientScriptManager cs   Page ClientScript      Check to see if the startup script is already registered  if   cs IsStartupScriptRegistered cstype   PopupScript          String cstext    alert  Hello World          cs RegisterStartupScript cstype   PopupScript   cstext  true       This sample s taken from MSDN

User · Answer

One of the options is to use the Javascript   Here is a quick reference where you can start from    Javascript alert messages

[c#] How to show MessageBox on asp.net?

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