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POUserControl Export GridView to PDF
 

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    <p>I have a <em>UserControl</em> and I'm trying to export my GridView table to a PDF. I am able to do a CSV file just fine, but I get errors when trying to do a PDF. (I am using iTextSharp Library) This is the error I'm getting:</p> <p><strong>"Control 'DoNotAddList_1_GridView1' of type 'GridView' must be placed inside a form tag with runat=server."</strong></p> <p>I have a form tag in my html, and I tried adding it in the ascx file but nothing works. I've found many people getting this error and most everyone suggested adding this to code to the ascx.cs file:</p> <pre><code>public override void VerifyRenderingInServerForm(Control control) { } </code></pre> <p>But that gives me this error <strong>"no suitable method found to override..."</strong></p> <p>I don't know what to do. I haven't been able to find a solution. Please Help!! </p> <pre><code>using System; using System.Data; using System.Configuration; using System.Collections; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.IO; using iTextSharp.text; using iTextSharp.text.pdf; using iTextSharp.text.html; using iTextSharp.text.html.simpleparser; public partial class UserControls_DoNotAddListControl : System.Web.UI.UserControl { protected void PDF_Click(object sender, EventArgs e) { Response.ContentType = "application/pdf"; Response.AddHeader("content-disposition", "attachment;filename=GridViewExport.pdf"); Response.Cache.SetCacheability(HttpCacheability.NoCache); StringWriter sw = new StringWriter(); HtmlTextWriter hw = new HtmlTextWriter(sw); GridView1.AllowPaging = false; GridView1.DataBind(); GridView1.RenderControl(hw); StringReader sr = new StringReader(sw.ToString()); Document pdfDoc = new Document(PageSize.A4, 10f, 10f, 10f, 0f); HTMLWorker htmlparser = new HTMLWorker(pdfDoc); PdfWriter.GetInstance(pdfDoc, Response.OutputStream); pdfDoc.Open(); htmlparser.Parse(sr); pdfDoc.Close(); Response.Write(pdfDoc); Response.End(); } protected void CSV_Click(object sender, EventArgs e) { Response.ClearContent(); Response.AddHeader("content-disposition", string.Format("attachment; filename={0}", "BloombergDaily.csv")); Response.ContentType = "application/text"; GridView1.AllowPaging = false; GridView1.DataBind(); StringBuilder strbldr = new StringBuilder(); for (int i = 0; i &lt; GridView1.Columns.Count; i++) { strbldr.Append(GridView1.Columns[i].HeaderText + ','); } strbldr.Append("\n"); for (int j = 0; j &lt; GridView1.Rows.Count; j++) { for (int k = 0; k &lt; GridView1.Columns.Count; k++) { strbldr.Append(GridView1.Rows[j].Cells[k].Text + ','); } strbldr.Append("\n"); } Response.Write(strbldr.ToString()); Response.End(); } } </code></pre> <p>Here's what I have in the aspx file:</p> <pre><code>&lt;form id="form1" runat="server" action="/"&gt; &lt;div id="donotadd" class="tableWrapper"&gt; &lt;div id="tabs1"&gt; &lt;p&gt; &lt;div id="tabs-1" &gt; &lt;div id="DoNotAddListMacro" class="dataTable table_Center"&gt; &lt;umbraco:Macro ID="Macro1" Alias="DoNotAddListControl" runat="server"&gt;&lt;/umbraco:Macro&gt; &lt;/div&gt; &lt;/div&gt; &lt;/p&gt; &lt;/div&gt; &lt;/div&gt; &lt;/form&gt; </code></pre>
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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