Answer Posted / guest

<asp:FileUpload ID="FileUpload1" runat="server"
onchange="change(this);" />


//js
function change(fileupload) {

if (fileupload.value.indexOf('jpg') == '-1') {
document.getElementById('TextBox1').value =
'Nopicture';
alert('Select *.jpg file only');
}
if (fileupload.value.indexOf('jpg') != '-1') {
document.getElementById('TextBox1').value =
'haspicture';
}

}

function changevalue() {
if
(document.getElementById('FileUpload1').value == '') {
alert('Please select a file');
return false;
}
if
(document.getElementById('FileUpload1').value !='')
{
if
(document.getElementById('FileUpload1').value.indexOf('jpg')
== '-1') {

alert('upload *.jpg images only');
return false;
}
}


//code behind
protected void btnUpload_Click(object sender, EventArgs e)
{
if (btnUpload.Text == "Upload")
{
if (FileUpload1.HasFile)
{

Stream imgStream =
FileUpload1.PostedFile.InputStream;

int imgLen =
FileUpload1.PostedFile.ContentLength;
byte[] img = new byte[imgLen];
int n = imgStream.Read(img, 0, imgLen);
Session["Picture"] = img;
lblMessage.Text = "Attached";
btnUpload.Text = "Remove";
}
else
{
Session["Picture"] = null;
}

}
else
{
Session["Picture"] = null;
btnUpload.Text = "Upload";
lblMessage.Text = "Removed";
}
}

how to create a search bar which access data from various websites and retrieves the data

2558

---

Code for Communicating over Sockets?

1954

---

Common UI for Multiple web applications. Suppose there are 35 websites using same third party controls.These 3rd party controls are made together that all 35 websites can use these controls.If we put all 3rd party controls and use its dll in 35 websites,only class files will be accessable. But I want to use CSS,images also in all 35 websites. how I can design the N-tier solution for this project.

2252

---

Code for Using Keyboard Events?

2137

---

Code for Presenting Parent/Child Data in a Data Grid Row?

2116

---

---

How to Bind Nested XML to a Repeater Control with Container.DataItem?

3224

---

How to use Client-side Script to Focus Controls in ASP.NET?

2367

---

ArrayList declaration in .net

2754

---

Coding for Synchronizing Cache Access in ASP.NET?

3127

---

Code for Document Validation in XML.NET?

1990

---

What is the code of Password Recovery or Forget your password? Plz tell in c # language.

3575

---

How to get Dynamically Linked Comboboxes Set?

2032

---

i have a gird with columns all are coming from database,this will bind in item templete in gridview as textboxex.and i have button below named Update.i want to update all the records in the grid,but if user change the value of one textbox,what is the easy way 2 do this

2148

---

Coding for .NET Delegates?

2102

---

how to track links visited in google using iframes

2287

---