how to put an array of images into datagrid?

[ZeBula8]

okay - i'm a little closer - at least now it's putting the array names but still no images

[dj4uk]

OK so it is returning the local path to the file not the virtual path as used on the website.

i.e. although the image is stored in C:\inetpub\wwwroot\Rosary\images\traditional\citrine.jpg it needs to displayed as http://localhost/Rosary/images/citrine.jpg (obviously this could be slightly different depending on your setup).

I know there is a method to get the local path from a virtual path but not the other way around. Try using the replace method on the string to give the correct path.

HTH

DJ

[ZeBula8]

I found code that returns virtual from local path:

private string GetImageURL(string strImageFilePath)
{
// Request.Url.GetLeftPart(UriPartial.Authority) yields
// "http://{domain name}"

// Request.ApplicationPath yields "/{virtual directory}"
string imagePath;

imagePath = Request.Url.GetLeftPart(UriPartial.Authority) +
@"/Rosary" + Request.ApplicationPath + @"/traditional/" +
strImageFilePath.Substring(m_strImageDirectory.Length + 1);
return imagePath;
}

with this function I can pass in the string of the path that's in the array like this:

m_arrImageNames = Directory.GetFiles(m_strImageDirectory);

for(int i = 1;i < m_arrImageNames.Length;++i)
{
myImages[i] = GetImageURL(m_arrImageNames[i]);
						
}

DataGrid2.DataSource = myImages; 
DataGrid2.DataBind();

But then I get this error on line 52:
myImages[i] = GetImageURL(m_arrImageNames[i]);

Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.

Source Error: 


Line 50: 					for(int i = 1;i < m_arrImageNames.Length;++i)
Line 51: 					{
Line 52: 						myImages[i] = GetImageURL(m_arrImageNames[i]);
Line 53: 						
Line 54: 					}

I have myImages defined like so:

private string[] myImages;

I tried changing string[] to object[] but it didn't like that either -

what am i doing wrong?

[dj4uk]

I ain't quite awake this morning but try.

for(int i = 0;i < m_arrImageNames.Length;i++)
{
	myImages[i] = GetImageURL(m_arrImageNames[i]);
}

Also try defining the array just before the loop like so:

private string[m_arrImageNames.Length] myImages;

Hopefully that'll work.

DJ