File Validations

HCL Domino Domino Forum
1

Hi.

I have a form with 2 fields and a file upload control.

I have validation for the first 2 fields in place. I want a validation that atleast one file is attached to the document before the document is saved. I dont know how to validate using java script (its a web application).

How do I achieve this.

Please help if any of you have an idea. I have searched the forum but could get the proper answer.

2

Subject: File Validations

Give the upload control an id ( tab in the FileUploadControl propertie box), then you can use following to check if it is empty:

function checkFields(){

el = document.getElementById('MyFileUploadID');

if(el.value == ""){

	alert("No attachment");

	el.focus()

	return false;

}



return true;

}

3

Subject: File Upload Control Validation

Johann,

I have to agree with the others, your tip for how to check if the user has attached a file to a File Upload Control in a Domino web app is brilliant.

The document.getElementById() method is not documented in my O’Reilly JavaScript 1.2 book so maybe it’s a more recent addition to the language and by not specifying a JavaScript version in my code, maybe that is why I am able to make use of it. It may be an undocumented feature, but it works!

Thanks,

Ken

4

Subject: RE: File Upload Control Validation

getElementById is not supported on all browsers. I use this function instead for broader compatibility.

function GetObject ( idName ) {

if (document.layers) {

	// Netscape 4

	return document.layers[ idName ];

} else if (navigator.userAgent.indexOf('Opera') != -1) {

	// Opera

	return document.all[ idName ];

} else if (document.all && !document.getElementById) {

	// Explorer 4

	return document.all[ idName ];

} else if (document.getElementById) {

	// Netscape 6 & Explorer 5

	return document.getElementById( idName );

}

}

5

Subject: RE: File Validations

Good One

6

Subject: RE: File Validations

Thanks Johann for a wonderful help. It is working perfectly.

Thanks again.

7

Subject: File Validations - Thank you!

Thank you so much… it’s really help me too.