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Ich habe den folgenden Code, um eine GridView in eine Excel-Datei zu exportieren. Theoretisch sollte dieser Code problemlos exportiert werden. Es exportiert jedoch das Leerzeichen.Exportieren nach Excel zurückzusenden leer Excel-Tabelle
public static void Export(string fileName, GridView gv, System.Web.UI.Control parentControl)
{
HttpContext.Current.Response.Clear();
HttpContext.Current.Response.AddHeader("content-disposition", string.Format("attachment; filename=" + fileName + ".xls"));
HttpContext.Current.Response.ContentType = "application/ms-excel";
using (StringWriter sw = new StringWriter())
{
using (HtmlTextWriter htw = new HtmlTextWriter(sw))
{
// Create a table to contain the grid
Table table = new Table();
// include the gridline settings
table.GridLines = gv.GridLines;
// add the header row to the table
if (gv.HeaderRow != null)
{
GridViewExportUtil.PrepareControlForExport(gv.HeaderRow);
table.Rows.Add(gv.HeaderRow);
}
// add each of the data rows to the table
foreach (GridViewRow row in gv.Rows)
{
GridViewExportUtil.PrepareControlForExport(row);
table.Rows.Add(row);
}
// add the footer row to the table
if (gv.FooterRow != null)
{
GridViewExportUtil.PrepareControlForExport(gv.FooterRow);
table.Rows.Add(gv.FooterRow);
}
//Control 'Content_ctlDisplayIssues_gvIssues' of type 'GridView' must be placed inside a form tag with runat=server.
System.Web.UI.HtmlControls.HtmlForm form = new System.Web.UI.HtmlControls.HtmlForm();
parentControl.Controls.Add(form);
form.Controls.Add(gv);
form.RenderControl(htw);
// render the htmlwriter into the response
HttpContext.Current.Response.Write(sw.ToString());
HttpContext.Current.Response.End();
}
}
}
/// <summary>
/// Replace any of the contained controls with literals
/// </summary>
/// <param name="control"></param>
private static void PrepareControlForExport(Control control)
{
for (int i = 0; i < control.Controls.Count; i++)
{
Control current = control.Controls[i];
if (current is LinkButton)
{
control.Controls.Remove(current);
control.Controls.AddAt(i, new LiteralControl((current as LinkButton).Text));
}
else if (current is ImageButton)
{
control.Controls.Remove(current);
control.Controls.AddAt(i, new LiteralControl((current as ImageButton).AlternateText));
}
else if (current is HyperLink)
{
control.Controls.Remove(current);
control.Controls.AddAt(i, new LiteralControl((current as HyperLink).Text));
}
else if (current is DropDownList)
{
control.Controls.Remove(current);
control.Controls.AddAt(i, new LiteralControl((current as DropDownList).SelectedItem.Text));
}
else if (current is CheckBox)
{
control.Controls.Remove(current);
control.Controls.AddAt(i, new LiteralControl((current as CheckBox).Checked ? "True" : "False"));
}
else if (current is Image)
{
control.Controls.Remove(current);
control.Controls.AddAt(i, new LiteralControl((current as Image).AlternateText));
}
if (current.HasControls())
{
GridViewExportUtil.PrepareControlForExport(current);
}
}
}
}
Fehle ich etwas hier?
2 Dinge, die ich bemerkt '1 Änderung Ihrer Response.ContentType = "application/vnd.ms-excel";' ' 2nd' vor Current.Response.End, legte' HttpContext.Current.Response.Flush(); 'sehen, ob das hilft – MethodMan
auch die folgenden hinzufügen, bevor Sie die Header ' HttpContext.Current.Response.ClearContent(); und HttpContext.Current.Response.ClearHeaders(); 'dann fügen Sie diese Zeile ' HttpContext.Current.Response.ContentType = "application/ms-excel"; 'dann fügen Sie die Zeile zum Hinzufügen der Header hinzu. – MethodMan
Lassen Sie mich das geben. –