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  4. read byte of saved picture

read byte of saved picture

Scheduled Pinned Locked Moved ASP.NET
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  • C Offline
    C Offline
    comptech2
    wrote on last edited by
    #1

    hi.i want to read byte of save picture and show in fileUpload control.the below code dont work.please quidance me

    while (dr.Read())
    {
    picture_fileUpload = (byte[])dr["picture"];
    }

    N S 2 Replies Last reply
    0
    • C comptech2

      hi.i want to read byte of save picture and show in fileUpload control.the below code dont work.please quidance me

      while (dr.Read())
      {
      picture_fileUpload = (byte[])dr["picture"];
      }

      N Offline
      N Offline
      Not Active
      wrote on last edited by
      #2

      You can't assign a value to an upload control. What are you trying to accomplish?


      Failure is not an option; it's the default selection.

      C 1 Reply Last reply
      0
      • C comptech2

        hi.i want to read byte of save picture and show in fileUpload control.the below code dont work.please quidance me

        while (dr.Read())
        {
        picture_fileUpload = (byte[])dr["picture"];
        }

        S Offline
        S Offline
        satalaj
        wrote on last edited by
        #3

        Hi, Asp.net fileUpload control has FileBytes properties. It returns file content in terms of byte array. Upload image file and save in sql server.

        C N 2 Replies Last reply
        0
        • N Not Active

          You can't assign a value to an upload control. What are you trying to accomplish?


          Failure is not an option; it's the default selection.

          C Offline
          C Offline
          comptech2
          wrote on last edited by
          #4

          this is edit page and i want that fileupload kept last image value and if we select new image then change its value

          N 1 Reply Last reply
          0
          • S satalaj

            Hi, Asp.net fileUpload control has FileBytes properties. It returns file content in terms of byte array. Upload image file and save in sql server.

            C Offline
            C Offline
            comptech2
            wrote on last edited by
            #5

            this is edit page and i want that fileupload kept last image value and if we select new image then change its value

            S 1 Reply Last reply
            0
            • C comptech2

              this is edit page and i want that fileupload kept last image value and if we select new image then change its value

              N Offline
              N Offline
              Not Active
              wrote on last edited by
              #6

              So display the existing image and check the FileUpload.HasFile property. If true then the user has selected a new file to be uploaded. Why make it more difficult?


              Failure is not an option; it's the default selection.

              C 1 Reply Last reply
              0
              • S satalaj

                Hi, Asp.net fileUpload control has FileBytes properties. It returns file content in terms of byte array. Upload image file and save in sql server.

                N Offline
                N Offline
                Not Active
                wrote on last edited by
                #7

                Did you read the question?


                Failure is not an option; it's the default selection.

                1 Reply Last reply
                0
                • N Not Active

                  So display the existing image and check the FileUpload.HasFile property. If true then the user has selected a new file to be uploaded. Why make it more difficult?


                  Failure is not an option; it's the default selection.

                  C Offline
                  C Offline
                  comptech2
                  wrote on last edited by
                  #8

                  but how to set the value to file upload control during postback ?

                  N 1 Reply Last reply
                  0
                  • C comptech2

                    but how to set the value to file upload control during postback ?

                    N Offline
                    N Offline
                    Not Active
                    wrote on last edited by
                    #9

                    You DON'T set it. How many times do you need to be told this?


                    Failure is not an option; it's the default selection.

                    1 Reply Last reply
                    0
                    • C comptech2

                      this is edit page and i want that fileupload kept last image value and if we select new image then change its value

                      S Offline
                      S Offline
                      shreekar
                      wrote on last edited by
                      #10

                      OK - lets do it one step at a time. Have you managed to save the uploaded image to wherever you want?

                      Shreekar

                      N 1 Reply Last reply
                      0
                      • S shreekar

                        OK - lets do it one step at a time. Have you managed to save the uploaded image to wherever you want?

                        Shreekar

                        N Offline
                        N Offline
                        Not Active
                        wrote on last edited by
                        #11

                        Have you even read this thread? The first post shows the OP is obtaining the image from a database. The question isn't about uploading an image.


                        Failure is not an option; it's the default selection.

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