how to use javascipt function from .js file and apply to textbox.

Posted 22 Dec '12 - 22:08

Solution 1

Hi,

In your HTML code, add this:

<script type="text/javascript" src="yourJavascriptFile.js"></script>

Now, your external JavaScript is loaded, and you can call your function.

Hope this helps.

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Posted 22 Dec '12 - 22:17

ProgramFOX56.3K

Comments

Member 9511889 - 23 Dec '12 - 5:06

after this step,how to apply validation of function to textbox.

ProgramFOX - 23 Dec '12 - 8:21

Then, you can call your JavaScript function in your external file in your HTML file:


<script type="text/javascript">
functionInExternalFile();
</script>

Solution 2

>> First of all load the js file like

<script language="javascript" type="text/javascript" src="jsfilelocation/filename.js" />

>> Remeber to return true / false based on the condition in your validation function.
For example, in your js file, let's say there is a method called Validate() that validates the textbox. SO the function should return true / false

function Validate()
{
   // Validation code.
   // If numeric return true else return false;
...
}

>> Now in your submit button write...

<asp:Button ID="btnSave" runat="server" CssClass="ActionButton" Text="Save" ValidationGroup="vgAddress"
               OnClick="btnSave_Click" OnClientClick="javascript:return Validate();"

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Posted 23 Dec '12 - 0:11

TanvirRaihan1.1K

Solution 3

Try adding this function

function isAlphabet(elem){
    var alphaExp = /^[a-zA-Z]+$/;
    if(elem.value.match(alphaExp)){
        return true;
    }else{
        alert("Can Not Contain Number");
        elem.focus();
        return false;
    }
}

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Posted 23 Dec '12 - 0:42

Ehtesam Ahmed387

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how to use javascipt function from .js file and apply to textbox.

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how to use javascipt function from .js file and apply to textbox.

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