How to call method of .aspx from .cs file

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Hello sir,
I created web page in that i used javascript in .aspx file.I need followings to be done.:

I am having **"save"** button,but in the source code i used java script for **save** button,where i declared a function called **OnClientClick="javascript : validateTextTest()"** and in the head of source code i called this function validateTextTest().

Below is the save button in source code:

<asp:Button ID="Save" runat="server" onclick="Save_Click" Text="Save" OnClientClick="javascript : validateTextTest()"
Width="63px" />

Now i need is can i call a function **validateTextTest**() in save button of **.cs file**.Because am having two to three textboxs,if i leave one texbox out of three textbox it should not insert into DB.

So please tel me how to call the function in .cs file .Please to help me.
Thanks,
Pradeep

Posted 11-Jun-12 1:22am

Pradeep CBZ

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Chandrashekar SK 11-Jun-12 7:39am

You can use built in validation tools provided by asp.net. This way you can avoid validateTextTest() and rest works fine.

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Sridhar Patnayak · Answer 1 · 2012-06-11T01:36:00

Write a server side event for the button_click, in this event call javascript as

JavaScript

string script = "<script language="'javascript'">validateTextTest();</script>";
                ScriptManager.RegisterStartupScript(Page, Page.GetType(), Guid.NewGuid().ToString(), script, false);

Thanks
SP

Stephen Hewison · Answer 2 · 2012-06-11T01:38:00

Hi,

If you need a more complicated post back behaviour you can include a hidden which contains a value which includes your desired post back behaviour.

XML

<asp:hidden id="hdnAction" runat="Server" xmlns:asp="#unknown" />

Update your javascript method to assign an action and submit the form:

JavaScript

function validateTextTest() {

   // validation code

   document.getElementById('hdnAction').value = 'MyAction';
   document.forms[0].submit();

}

Then in your page load:

C#

protected void Page_Load(Object sender, EventArgs e)
{

  if(IsPostBack)
  {
    switch(hdnAction.Value)
    {
      case "MyAction":
        //do action code
        break;
    }
  }

}

You then remove the server event binding from your button:

XML

<asp:button id="Save" runat="server" text="Save" onclientclick="javascript : validateTextTest()" xmlns:asp="#unknown">
Width="63px" /></asp:button>

How to call method of .aspx from .cs file

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