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Resources » Code Snippets » ASP.NET WebForms »

Javascript Function to Validate Image Upload


Posted Date: 08 Dec 2008    Resource Type: Code Snippets    Category: ASP.NET WebForms
Author: lavanyaMember Level: Silver    
Rating: 1 out of 5Points: 8




function LoadImage(c)
{
var fileUpLoad1=c;
var fileName=document.getElementById(fileUpLoad1).value;


if(!ValidateFileExt(fileName))
{
alert ("Invalid File");
return false;
remove();
}
}
function ValidateFileExt(fileName)
{

var filePostion=fileName.indexOf(":");
if(filePostion !="1")
return false;

fileExt = fileName.substring(fileName.lastIndexOf(".")+1,fileName.length);
if (fileExt == "gif"|| fileExt == "GIF"|| fileExt == "jpg"|| fileExt == "JPG"|| fileExt == "jpeg"|| fileExt == "JPEG"|| fileExt == "bmp"|| fileExt == "BMP"|| fileExt == "png"|| fileExt == "PNG")
return true;
else
return false;
}



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