Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

asp.net, vb - Export to excel

Posted on 2010-09-15
3
Medium Priority
?
569 Views
Last Modified: 2012-06-22
I found the following code on the web to export the contents of an asp.net gridview to Excel.
It works fine, but how can I make also export the text from other controls? Eg. a label that sits above my gridview and a table and a textbox that sits below the gridview?
Partial Class exportToExcel
    Inherits System.Web.UI.Page

    Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
        '// Disable paging
        GridView1.AllowPaging = False

        '// exluded columns arraylist
        Dim defaultExcludedColumns As New ArrayList()

        '// Always exclude these columns
        defaultExcludedColumns.Add("")

        '// Send to base Excel export method 
        ExportGridView(GridView1, "Excel-Name", defaultExcludedColumns)

        '// Rebind with paging enabled
        GridView1.AllowPaging = True
    End Sub


    '/// <summary>
    '/// Export GridView data to Excel.
    '/// </summary>
    '/// <param name="grdView">GridView control to export.</param>
    '/// <param name="filename">Filename of excel spreadsheet.</param>
    '/// <param name="excludedColumnList">ArrayList of columns to exlude.</param>
    Sub ExportGridView(ByVal grdView As GridView, ByVal filename As String, ByVal excludedColumnList As ArrayList)
        '// Clear response content & headers
        Response.Clear()
        Response.ClearContent()
        Response.ClearHeaders()


        '// Add header
        Response.AddHeader("content-disposition", "attachment;filename=" + filename + ".xls")
        Response.Charset = String.Empty
        Response.Cache.SetCacheability(System.Web.HttpCacheability.Public)
        Response.ContentType = "application/vnd.xls"

        '// Create stringWriter
        Dim stringWrite As New System.IO.StringWriter()

        '// Create HtmlTextWriter
        Dim htmlWrite As New HtmlTextWriter(stringWrite)


        '// Remove controls from Column Headers
        If (grdView.HeaderRow IsNot Nothing And grdView.HeaderRow.Cells IsNot Nothing) Then
            Dim ct As Integer
            For ct = 0 To grdView.HeaderRow.Cells.Count - 1 Step ct + 1
                ' Save initial text if found
                Dim headerText As String = grdView.HeaderRow.Cells(ct).Text

                ' Check for controls in header
                If grdView.HeaderRow.Cells(ct).HasControls() Then
                    ' Check for link button
                    If grdView.HeaderRow.Cells(ct).Controls(0).GetType().ToString() = "System.Web.UI.WebControls.DataControlLinkButton" Then
                        ' link button found, get text
                        headerText = (CType(grdView.HeaderRow.Cells(ct).Controls(0), LinkButton)).Text
                    End If

                    ' Remove controls from header
                    grdView.HeaderRow.Cells(ct).Controls.Clear()
                End If

                ' Reassign header text
                grdView.HeaderRow.Cells(ct).Text = headerText
            Next

        End If
        '// Remove footer
        If (grdView.FooterRow IsNot DBNull.Value) Then

            grdView.FooterRow.Visible = False
        End If

        '// Remove unwanted columns (header text listed in removeColumnList arraylist)
        Dim field As DataControlField
        For Each field In grdView.Columns

            If (excludedColumnList.Contains(field.HeaderText)) Then

                field.Visible = False
            End If
        Next

        '// Call gridview's renderControl
        grdView.RenderControl(htmlWrite)

        '// Write Response to browser
        Response.Write(stringWrite.ToString())

        Response.End()
    End Sub

    Public Overrides Sub VerifyRenderingInServerForm(ByVal control As System.Web.UI.Control)
        'MyBase.VerifyRenderingInServerForm(control)

    End Sub

End Class

Open in new window

0
Comment
Question by:Rick
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
3 Comments
 
LVL 5

Accepted Solution

by:
Varghese Jacob earned 2000 total points
ID: 33689282
You have to use Response.Write() to put what ever you want before and after the below lines in the code snippet mentioned above.

        '// Write Response to browser
        Response.Write(stringWrite.ToString())

0
 
LVL 13

Author Closing Comment

by:Rick
ID: 33691550
That's right. I remember doing this about 2 yrs. ago with Windows forms.   Thanks!
0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Enums (shorthand for ‘enumerations’) are not often used by programmers but they can be quite valuable when they are.  What are they? An Enum is just a type of variable like a string or an Integer, but in this case one that you create that contains…
I was working on a PowerPoint add-in the other day and a client asked me "can you implement a feature which processes a chart when it's pasted into a slide from another deck?". It got me wondering how to hook into built-in ribbon events in Office.
Get people started with the process of using Access VBA to control Outlook using automation, Microsoft Access can control other applications. An example is the ability to programmatically talk to Microsoft Outlook. Using automation, an Access applic…
This lesson covers basic error handling code in Microsoft Excel using VBA. This is the first lesson in a 3-part series that uses code to loop through an Excel spreadsheet in VBA and then fix errors, taking advantage of error handling code. This l…
Suggested Courses

704 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question