Store Files In SQL From An ASP Page Using FileUpload
May 23, 2008
I am almost done with a simple page to have a user select a file (using the FileUpload object), give it a short description and associate it with an item from a listbox. Thensave these pieces of data to a new row in a SQL DB.
My issue...
The SQLSmd.ExecuteNonQuery FAILS...
I have got all the fields able to connect and almost save... but for the actual "document" field errors out. The user can select any type of file (image, word, excel, Powerpoint, etc) for storage into the DB. I am not storing a referance to a file or the path to a file but the actual file in SQL.In the DB I have the field (Document) set to a type of VarBinary(8000) in the table.
Here is thethe corrisponding code in my app...
Dim bArray As Byte
...
bArray = FileUpload1.PostedFile.InputStream.ReadByte()
...
SQLCmd.Parameters.Add("@Document", Data.SqlDbType.VarBinary, 8000).Value = bArray
...
iReturn = SQLCmd.ExecuteNonQuery()
ERROR
The first section of the stact trace...
[InvalidCastException: Invalid cast from 'System.Byte' to 'System.Byte[]'.]
System.Convert.DefaultToType(IConvertible value, Type targetType, IFormatProvider provider) +867
System.Byte.System.IConvertible.ToType(Type type, IFormatProvider provider) +37
System.Convert.ChangeType(Object value, Type conversionType, IFormatProvider provider) +408
System.Data.SqlClient.SqlParameter.CoerceValue(Object value, MetaType destinationType) +896
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Apr 24, 2008
Hi
I have a asp:FileUpload conponent that I am trying to use to retrieve a picture file from the clients pc and store it in a SQL database.
The table is called PropertyImage and it contains the following fields:
imgID (type = int - autoincrement); imgData (type = Image); imgTitle (type = VarChar); imgType (type = VarChar); imgLength (type = BigInt);
I have a button (Button1) which when clicked calls Button1_Click()
--------------------------------------------------protected void Button1_Click(object sender, EventArgs e)
{byte[] fileData = null;
Boolean status = false;if (FileUpload1 != null)
{
// Make sure the file has data.if ((FileUpload1.PostedFile != null) && (FileUpload1.PostedFile.ContentLength > 0))
{
// Get the filename.string fn = System.IO.Path.GetFileName(FileUpload1.PostedFile.FileName);
try
{
// Access the file stream and begin the upload. Store the file in a memory byte array.Stream MyStream = FileUpload1.PostedFile.InputStream;
long iLength = MyStream.Length;fileData = new byte[(int)MyStream.Length];MyStream.Read(fileData, 0, (int)MyStream.Length);
MyStream.Close();
}catch (Exception ex)
{ }
}
}SqlConnection connection = new SqlConnection("Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\heidihomes.mdf;Integrated Security=True;User Instance=True");
try
{
connection.Open();SqlCommand sqlCmd = new SqlCommand("INSERT INTO PropertyImage (imgData, imgaTitle, imgType, imgLength) VALUES(@data,@title,@type,@length)");
SqlParameter param = new SqlParameter();
// String connectionString = new SqlConnection(sqlCmd, connection);
param = new SqlParameter("@data", SqlDbType.Image);
param.Value = fileData;
sqlCmd.Parameters.Add(param);param = new SqlParameter("@title", SqlDbType.VarChar);
param.Value = fileData;
sqlCmd.Parameters.Add(param);param = new SqlParameter("@type", SqlDbType.VarChar);
param.Value = fileData;
sqlCmd.Parameters.Add(param);param = new SqlParameter("@length", SqlDbType.BigInt);
param.Value = fileData;
sqlCmd.Parameters.Add(param);
sqlCmd.ExecuteNonQuery();
connection.Close();status = true;
}catch (Exception ex){ }if (status)
{
UploadStatus.Text = "File Uploaded Successfully";Server.Transfer("Admin_PropertyView.aspx");
}
else
{UploadStatus.Text = "Uploaded Failed";
}
}
}
--------------------------------------------------
But when I click on the button, nothing happens.
Please could someone help me out here. I have tried this a few times and still haven't come right.
Also, if there is something else wrong with the code, please let me know.
Thanking you in advance.
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Hi All,
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Apr 13, 2006
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Jun 1, 2006
I am trying to use the FileUpload control to save a filename to a SQL database. I'm using the OnUpdating event for my SQLDataSource to add the filename to the UpdateParameters. The OnUpdating event is firing but the FileName doesn't get added to the database. Any pointers as to why that might be would be very helpful.
Here's the code. Thanks much.
<%@ Page Language="VB" MasterPageFile="~/MasterPage.master" Title="File Upload Testing" %>
<script runat="server">
Sub Page_Load()
Response.Write("UpdateParameters(0)=" & dsLabel.UpdateParameters(0).Name & "<br />")
Response.Write("UpdateParameters(1)=" & dsLabel.UpdateParameters(1).Name & "<br />")
End Sub
Sub dsLabel_OnUpdating(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.SqlDataSourceCommandEventArgs)
Dim FileUploadControl As FileUpload = DetailsView1.FindControl("FileUpload1")
Dim strFileName As String = FileUploadControl.FileName
dsLabel.UpdateParameters(0).DefaultValue = strFileName
dsLabel.UpdateParameters(1).DefaultValue = Request.QueryString("rgstnID")
Response.Write("dsLabel.UpdateParameters(0).DefaultValue = " & dsLabel.UpdateParameters(0).DefaultValue & "<br />")
Response.Write("dsLabel.UpdateParameters(1).DefaultValue = " & dsLabel.UpdateParameters(1).DefaultValue & "<br />")
End Sub
</script>
<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
<h1>File Upload</h1>
This page should allow me to use the FileUpload Control to save a filename to an MS SQL Database.<br />
<br />
<asp:DetailsView ID="DetailsView1" runat="server" AutoGenerateRows="False"
DataSourceID="dsLabel" Height="50px" Width="125px">
<Fields>
<asp:TemplateField HeaderText="File" SortExpression="labelName">
<EditItemTemplate>
<asp:FileUpload ID="FileUpload1" runat="server" />
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Bind("labelName") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:CommandField ButtonType="Button" ShowEditButton="True" />
</Fields>
</asp:DetailsView>
<br />
<br />
<asp:SqlDataSource ID="dsLabel" runat="server"
ConnectionString="Data Source=FILESERVER1;Initial Catalog=IM;Integrated Security=True"
OnUpdating="dsLabel_OnUpdating"
ProviderName="System.Data.SqlClient"
SelectCommand="SELECT labelName FROM tblProductRegistration WHERE (registrationID = @registrationID)"
UpdateCommand="UPDATE tblProductRegistration SET labelName = @LabelName WHERE (registrationID = @registrationID)">
<UpdateParameters>
<asp:Parameter ConvertEmptyStringToNull="True" Name="LabelName" />
<asp:QueryStringParameter Type="Int64" Name="registrationID" QueryStringField="rgstnID" />
</UpdateParameters>
<SelectParameters>
<asp:QueryStringParameter Name="registrationID" QueryStringField="rgstnID" />
</SelectParameters>
</asp:SqlDataSource>
</asp:Content>
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HiHoping someone can help me , I am looking to add a file upload inside a createuserWizard but am banging my head at this stage I can get in working saving the file selected in the Fileupload into a table on the database using a datatype "image" for the field.However
ideally I would like to save a string of the file path to the database
and save the actual file to the filesystem of the webserver.The
problem for me is that this is inside a CreateUserWizard, I gather the
standard information and them have "extended" the wizard by adding
another wizard step , which will include a FileUpload control. I need
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the CreateUserWizard control( CreateUserWizard1_CreatedUser in the aspx.cs) I
am able to write the SQL that allows save information from a textbox
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<atlas:ScriptManager id="MasterScriptManager"
EnableScriptGlobalization="false"
runat="Server"></atlas:ScriptManager> <div>
<asp:CreateUserWizard ID="CreateUserWizard1" runat="server"
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<asp:RequiredFieldValidator runat="server"
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<asp:RequiredFieldValidator runat="server"
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<asp:RequiredFieldValidator runat="server"
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<asp:RequiredFieldValidator runat="server"
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ConnectionString="<%$ ConnectionStrings:CONTACTSConnectionString
%>" InsertCommand="INSERT INTO [CLIENT]
([client_id], [First_Name], [Last_Name]) VALUES (@UserId, @FirstName,
@LastName)" ProviderName="<%$ ConnectionStrings:CONTACTSConnectionString.ProviderName %>"> <InsertParameters>
<asp:ControlParameter Name="FirstName" Type="String"
ControlID="txtFirstName" PropertyName="Text" />
<asp:ControlParameter Name="LastName" Type="String"
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I'm trying to figure this out
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------------------------------------------------------------------------
Create Procedure spUpdatePasswordByUserId
@userName varchar(20),
@password varchar(20)
AS
Begin
Declare @userId int
Select @userId = (Select userId from userInfo Where userName = @userName and password = @password)
if (@userId > 0)
return @userId
else
return 0
------------------------------------------------------------------
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passport.UserInfoTableAdapters oUserInfo = new UserInfoTableAdapters();
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Hello I have a project that uses a large number of MS Data access pages created in Access 2003 and runs on MS SQL2005.
When I am on lets say my client, (first page in a series) data access page and I have completed the fields in the (DAP), I am directing my users to the next step of the registration process by means of a hyperlink to another Data access page in the same web but in a linked or sometimes different table.
I need to pass data entered /created on the first page to the next page and populate the next page with some data from the first page / table. (like staying on the client name and ID when i go to the next page)
I also need the first data access page to open and display a blank or new record. Not an existing record. I will also be looking to creata a drop down box as a record selector.
Any pointers in the right direction would be appreciated.
I am some what new to data access pages so a walk through would be nice but anything you got is welcome. Thanks Peter€¦
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