how to upload default image into database when no image file is selected from fileupload control in asp.net

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1.00/5 (2 votes)

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Hi..

I want to store a default image in binary format,into database table when no image file is uploaded from fileupload control in my web page.i don't want to insert null values in "image" field of image table I have searched on google but couldn't find solution.

code sample i have tried is

C#

if(imgfileupload.hasfile)
{
//here i have converted the image file in fileupload control into byte[]
}
else
{
//here i want code for converting default image into byte[]
i.e if(imgfileupload.hasfile=="false")......
}

please I want source code.please i want source code.i really need it......

Thanks in advance

Posted 6-Jan-11 4:35am

Ragini2017

Updated 6-Jan-11 5:21am

thatraja

v4

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Sandeep Mewara 6-Jan-11 14:42pm

Asking for source code desperately! Why so? Please avoid it.

Sandeep Mewara 6-Jan-11 14:43pm

I have no clue, whats the issue! If nothing is uploaded, pick a file from default location and follow the save route. What's an issue here?

fjdiewornncalwe 6-Jan-11 15:07pm

I'll vote 1 because you are obviously fishing for a solution without putting in effort yourself. You added the code block to your question after SChristmas posted his answer below for the if block logic. Now you want the "convert to byte[]" logic. How about you try that and then post a question about that instead of fishing for someone to do your homework for you.

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Sandesh M Patil · Answer 1 · 2011-01-06T04:38:00

Solution 1

At the time of uploading you check the .HasFile property of FileUpload control (it will be true if file is selected), as following:

if (FileUpload1.HasFile)
            {
                // Upload Browsed File
            }
            else
            {
                // Use Default File
            }

Accept the answer if found useful :)

Posted 6-Jan-11 4:38am

Sandesh M Patil

Updated 6-Jan-11 4:39am

v2

Comments

fjdiewornncalwe 6-Jan-11 15:08pm

+5 because the OP obviously has used this by posting a variation of your answer in his question after reading your answer.

G Suleman · Answer 2 · 2011-01-06T06:52:00

If you have the image as bitmap, you can use this

C#

private byte[] GetByteArray(Bitmap bitmapImage)
{
    var byteArray = (byte[])TypeDescriptor.GetConverter(bitmapImage).ConvertTo(bitmapImage, typeof(byte[]));
    bitmapImage.Dispose();
    return byteArray;
}

And in fact, for each situation you don't have to be putting the same default image repeatedly in the database, so, I think you should just store it once and retrieve it for every case where there is no default image. With regards to storing null image in the respected column, I believe a better practice is to have a separate table with two columns where you put the entity primary key as foreign key and the second column will contain the image, this way, any item with no record in this table has no image of its own, sow we get the standard default image that is store in just one location.