When I am Fetching image Bytes from database and trying to display in asp image control image not displyaing

See more:

C#

ASP.NET

SQL-Server

C#4.0

please can anybody solve my problem

Here is my code
i am using file upload control to select an image and btn upload for storing image bytes in session to save later and for preview also ,In this case i am getting Preview correctly.



protected void btnUpload_Click(object sender, EventArgs e)
{

string fileName = PhotoUpload.PostedFile.FileName;
string fileExtension = System.IO.Path.GetExtension(fileName);
string fileMimeType = PhotoUpload.PostedFile.ContentType;
int fileLengthInKB = PhotoUpload.PostedFile.ContentLength / 1024;

string[] matchExtension = { ".jpg", ".png", ".gif" };
string[] matchMimeType = { "image/jpeg", "image/png", "image/gif" };

if (PhotoUpload.HasFile)
{

if (matchExtension.Contains(fileExtension) && matchMimeType.Contains(fileMimeType))
{
if (fileLengthInKB <= 500)
{

Session["ImageBytes"] = PhotoUpload.FileBytes;
byte[] imgData = (byte[])PhotoUpload.FileBytes;
string base64String = Convert.ToBase64String(imgData, 0, imgData.Length);
imgAccper.ImageUrl = "data:image/png;base64," + base64String;
UPimgAccPer.Update();

}
else
{
string display = "Photograph Should be lessthan 500 KB";
ClientScript.RegisterStartupScript(this.GetType(), "myalert", "alert('" + display + "');", true);
//Please choose a file less than 1MB
}

}
else
{
//Please choose only jpg, png or gif file.
}
}
else
{
//Please choose a file.
}
}


But after saving i am fetching from database and trying to display it in asp image control bt i am not getting, Please any one check my code and give me solution

Here I am taking all the values from database into datatable called "dtEditRec",and
"UPimgAccPer" is update panel for asp image control named "imgAccper"


Session["ImageBytes"] = (byte[])dtEditRec.Rows[0]["Acc_Person_Photograph"];
byte[] imgData1 = (byte[])dtEditRec.Rows[0]["Acc_Person_Photograph"];
string base64String1 = Convert.ToBase64String(imgData1, 0, imgData1.Length);
imgAccper.ImageUrl = "data:image/png/;base64," + base64String1;
UPimgAccPer.Update();