I had write a code about get a picture from url and save as bitmap. However, there was a problem in HttpWebResponse. It didn't run the code start from HttpWebResponse.Then my whole website die there.
[Code]....
i'm new to c# and i wanted to know how can i allow user to upload a picture from a text box and a button??
after uploading the picture, how can i save the picture in the database??
**note**the picture i allow user to upload need to be in a fixed size.
In ASP.NET C# I'm trying to save a bitmap image as an 16-color non-transparent grayscale image as either a PNG or GIF. I assume I have to create a palette and then somehow attach the palette to the image but not sure how to go about doing this. The source image is a 24-bit color Bitmap.
View 2 RepliesI have to save the webpage as image in my system folder. I am saving them using stream.....but the page is not displayed as Image....It opened only through browsers.
View 2 RepliesThis in in an ASP.NET application.
Locally, this code runs fine, but on our production server, it throws an exception of 'Parameter is not valid' when Bitmap.Save() is called.
Should I not be using System.Drawing.Bitmap because its not recommened based on this:
[URL]
Classes within the System.Drawing namespace are not supported for use within a Windows or ASP.NET service. Attempting to use these classes from within one of these application types may produce unexpected problems, such as diminished service performance and run-time exceptions.
What else could I use?
Bitmap myBitmap = new Bitmap(img);
myBitmap.SetResolution(img.HorizontalResolution, img.VerticalResolution);
// get the tiff codec info
ImageCodecInfo myImageCodecInfo = GetEncoderInfo("image/tiff");
// Create an Encoder object based on the GUID for the Compression parameter category
System.Drawing.Imaging.Encoder myEncoder = System.Drawing.Imaging.Encoder.Compression;
// create encode parameters
EncoderParameters myEncoderParameters = new EncoderParameters(1);
EncoderParameter myEncoderParameter = new EncoderParameter(myEncoder, (long)EncoderValue.CompressionCCITT4);
myEncoderParameters.Param[0] = myEncoderParameter;
// save as a tiff
myBitmap.Save(input, myImageCodecInfo, myEncoderParameters);
there are an access file . >> "test_file.mdb"
there are a table in mdb file .>> "test_table1"
and there are 2 columns in "test_table1" >> "name" and "age"
and i have 2 textbox in my web form . >> "textbox_name" and "textbox_age"
and i have a button for save textbox_name.text and textbox_age.text in mdb file .
i need adox vb code for save textboxs data in mdb file .
I have a colorpicker.png file and track the pixel clicked in codebehind using GetPixel. Works like a charm, but I read that converting to a bitmap on the fly is rather heavy on the server. Therefore I saved my .png file as a .bmp as well, so that a converted file would already exist. However, I don't seem tobe able to just use the bitmap file, but need to create a new bitmap from the bitmap...
My question is: The code below works (I provide it here for those who might need it - simply add the code below to codebehind and this code in your aspx page <asp:ImageButton
ID="cpRubrik"
runat="server"
ImageUrl="~/img/colorpicker.png"
/> ;
also note that the image can be whatever you want - a photo or a screendump of a colorpicker from say Photoshop or VS; and note that it's wise to put everything you need in an updatepanel). Should I write something else in order to get smarter access to the bitmap?
Protected Sub cpRubrik_Click(ByVal sender As Object, ByVal e As System.Web.UI.ImageClickEventArgs) Handles cpRubrik.Click
tbUtseenderub.ForeColor = BytFarg(e.X, e.Y)
End Sub
Protected Function BytFarg(ByVal x As Integer, ByVal y As Integer) As Color
Dim myBitmap As New Bitmap(Server.MapPath("~/img/colorpicker.bmp"))
Dim clr As Color = myBitmap.GetPixel(x, y)
Return clr
End Function
i want to save a picture in one folder up from there where i call the mappath how can i do that?
for example i am here
c:usersmevstproject
and i want to save the file here
c:usersmevst
i want to do that with mappath in order to work in the server.not only in my pc..
If i want to create a web site that take your picture and share it for your friends, what the best way to save the picture files on server? What the way is safer for the picture files? What the way has the best performance?
View 9 RepliesUsing C#
How can i save a Div (tabel) in .aspx page as a Pic (jpeg or anything) ?
I am uploading images in c# windows application. I am uploading the images folder wise. In one folder there are 200 to 3000 images. My one images size is about 3.10 MB to 6.2 MB. Its dimensions are 3008 x 1960, 1960 , 4000 x 2600. 6000 x 4000 . while uploading i am reducing the size of image to 400 x 266 or 266 x 400 depending on the height and width of image. but still my image size is about 227 KB. Now i want to reduce the image resolution to decrease the image size.
My code is given below:
private void btnUpload_Click(object sender, EventArgs e)
{
getDestinationPath();
string ik = DestinationPath;
string ik2 = DestinationPath2;
string lastFolderName = Path.GetFileName(ik);
[Code] .....
i help save image as picture in sql databases for consumer profile now i possess a site that sow consumer profile facts an im this site i possess a picture manage to display consumer avatar with. in code at the rear of with Userprofile.Avatar code i obtained the picture as byte
View 4 RepliesI obtained the facebook profile details of an user.Now I need to store the profile details including profile picture in my local database.
View 1 RepliesI want to rename the image when uploaded to server. How to get it Give me code if possible.
View 3 Replies I have this code to insert a picture from database into an ImageControl on my ASP.NET form:
strConnString = "server=" + Server + ";database=" + DataBase + ";UID=" + UID + ";password=" + PASS + ";";SqlConnection MyConnection = new SqlConnection(strConnString);SqlCommand MyCommand = new SqlCommand("SELECT Pic FROM MEN WHERE ID=5", MyConnection);MyConnection.Open();SqlDataReader MyReader = MyCommand.ExecuteReader();if (MyReader.Read()){ byte[] m_MyImage = (byte[])MyReader["Pic"]; Response.BinaryWrite(m_MyImage);}
And I have this ImageControl on the form:
<asp:Image Width="88" Height="100" Runat="server" ID="m_Image" NAME="m_Image" />
but when I run the code, I see the picture big on the screen and not in my ImageControl.
i also put this in the form_load:
m_Image.ImageUrl = "MyPhoneBook.aspx?m_Image";my control is: m_Imagemy control ID is: m_Imagemy namespace is MyPhoneBook
but still dont work
I am trying to do some code where a user will be able to upload a .JPG picture from the users computer. I have put the controls and also written the C# code wich in my eyes seems to be correct. What happens in the code is that the uploaded picture will replace the existing "TopHeader.JPG" picture.
However when I run the code after I have choosen a .JPG picture from the desktop on my computer. Nothing happens except of a postback of the page.
I wonder what I can be missing out in order to make this work. (I attach both the HTML code and the C# code, I will be happy to know what I could be missing out)
[Code]....
Actually I want to get a file and save its length, its MIME type, content into database in binary format.
It saved but not open in hander in correct format.
[code]....
i want to nkow ik i can write a html code in the code behind if yes show me how?
View 3 Replieshow can I create stored procedure and write my select statement in it, I know how to create dataset then put type stored procedure and assign it to the sp ... what I want is writing my sp... how can I make it ?
check the following code, this is what I want to write put I don't know where or how !
CREATE STORED PROCEDURE SP_CATEGORY
@CATEGORY VARCHAR(30)
AS
BEGIN
SELECT LATIN_NAME, ENGLISH_NAME, ARABIC_NAME, CATEGORY
FROM FLORA, CATEGORY_LIST
WHERE FLORA.CATEGORY=CATEGORY_LIST.CATEGORY_NAME AND CATEGORY_LIST.CATEGORY_NAME IN (SELECT * FROM SPLITLIST(@CATEGORY, ','))
END
where can I write this code ?!
I ve an application dat am working on. The section of the upload picture works perfectly on the development environment and also on a test server but the issue comes up when it was hosted life. I started geting an error dat says picture could not be attached. I ve a folder cald Passport and dis ve been working for me on befor now but i dont now the reason y its not working now.
protected void btnUpload_Click1(object sender, EventArgs e)
{
Boolean fileOK = false;
String fileExtension = string.Empty;
String path = Server.MapPath("~/Passport/");
if (fuPassport.HasFile)
{
fileExtension = System.IO.Path.GetExtension(fuPassport.FileName).ToLower();
String[] allowedExtensions = { ".gif", ".png", ".jpeg", ".jpg" };
if (allowedExtensions.Contains(fileExtension))
{
fileOK = true;
}
}
else
{
Utilities.PortalMessage = "Please attach an image file.";
return;
}
if (fileOK)
{
try
{..............................
how to write the code in vb . to check the user is valid or not from data base table and get login into the form ...
View 2 RepliesI have a code which I repeat over and over so I am thinking to write subroutine. Not sure if there are functions in C#. Could you advise how to pass arguments to it. An example of add two numbers would be great.
View 1 Replieshow can I write JavaScript code in asp.net in code behind using C#.
For example, I have click button event when I click the button I want to invoke this java script code:
alert("You pressed Me!");
I want to know how to use java script from code behind.
Using VB.net, C# and SQL ServerI want to write a pseudo for my application.pseudo code is like coding or flow chart...?Can any one provide a sample pseudo code for any type of application.
View 4 RepliesHow to write the code below in one line.
Dim smtpDtls
As
New
MyEmailClass
smtpDtls.getSmtpDtls(teamID)