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POhow to display an image from database?
 

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    <p>i know too that this (kind of) question has been asked and answered many times. I myself have asked this once before. But I havnt been successful yet. how do I display the image in an image control for a particular employee ID... Heres my code:</p> <p>` bind() GridView1.Visible = "True"</p> <pre><code> Dim strQuery As String = "SELECT Image FROM EmployeeTable WHERE EmployeeID =@EmployeeID" Dim cmd As SqlCommand = New SqlCommand(strQuery) cmd.Parameters.Add("@EmployeeID", SqlDbType.Int).Value() = Convert.ToInt32(Request.QueryString("ImageID")) Dim dt As DataTable = GetData(cmd) If dt IsNot Nothing Then **Dim bytes() As Byte = CType(dt.Rows(1)("Image"), Byte())** Response.Buffer = True Response.Charset = "" Response.Cache.SetCacheability(HttpCacheability.NoCache) Response.ContentType = dt.Rows(0)("ContentType").ToString() Response.AddHeader("content-disposition", "attachment;filename=" + dt.Rows(1)("Name").ToString()) Response.BinaryWrite(bytes) Response.Flush() Response.End() End If` </code></pre> <p>Getting error at the line in bold. "There is no row at position 1"... Actually I want to fetch (display) the image for a particular employee id. How does it concern a row position? I dont know why i have written that line of code. Anyway, I know there are guys who can help me with this and so I thank them in advance...</p> <p>OK, Heres my code for adding the image to the database. This is working fine.</p> <pre><code> Dim imageData As Byte() = New Byte(FileUpload1.FileContent.Length) {} FileUpload1.FileContent.Read(imageData, 0, Convert.ToInt32(FileUpload1.FileContent.Length)) Dim con As New SqlConnection(System.Configuration.ConfigurationManager.AppSettings("ConnectionString").ToString) con.Open() If EmployeeIDTextBox.Text = "" Then MsgBox("Please Enter EmployeeID to Add Photo") Else Dim com As New SqlCommand("UPDATE EmployeeTable SET IMAGE = @IM where EmployeeID='" &amp; EmployeeIDTextBox.Text &amp; "'", con) Dim filePath As String = Server.MapPath(FileUpload1.FileName) 'Dim imageData As Byte() = File.ReadAllBytes(filePath) com.Parameters.AddWithValue("@IM", imageData) com.ExecuteNonQuery() MsgBox("File Saved Successfully!") End If End Sub </code></pre> <p>And now this is my code for retrieving &amp; displaying the same image in an image control...</p> <pre><code> bind() GridView1.Visible = "True" 'If Request.QueryString("ImageID") IsNot Nothing Then Dim strQuery As String = "SELECT Image FROM EmployeeTable WHERE EmployeeID =@EmployeeID" Dim cmd As SqlCommand = New SqlCommand(strQuery) cmd.Parameters.Add("@EmployeeID", SqlDbType.Int).Value() = Convert.ToInt32(Request.QueryString("Image")) Dim dt As DataTable = GetData(cmd) If dt IsNot Nothing Then Dim bytes() As Byte = CType(dt.Rows(0)("Image"), Byte()) Response.Buffer = True Response.Charset = "" Response.Cache.SetCacheability(HttpCacheability.NoCache) Response.ContentType = dt.Rows(0)("ContentType").ToString() Response.AddHeader("content-disposition", "attachment;filename=" + dt.Rows(1)("Name").ToString()) Response.BinaryWrite(bytes) Response.Flush() Response.End() End IF </code></pre> <p>This is not working...</p>
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    1. COdo u want to display in image control? and ur query returns image column from db and you are using `dt.Rows(0)("ContentType").ToString)`. Is this possible
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