Common method for Exporting gird content
#region Methods : ExportGridView & PrepareControlForExport
/// <summary>
/// Purpose : To Export GridView in Excel format.
/// </summary>
/// <param name="strFileName">Execl File name</param>
/// <param name="gv">Grid View</param>
/// <param name="isRemove">If false, wont check the remove column</param>
/// <param name="arrayList">List of columns to hide {1,2,3}</param>
/// <param name="removeColumn">Column to remove</param>
public void ExportGridView(string strFileName, GridView gv, bool isRemove, ArrayList arrayList)
{
HttpContext.Current.Response.Clear();
HttpContext.Current.Response.AddHeader(
"content-disposition", string.Format("attachment; filename={0}", strFileName));
HttpContext.Current.Response.ContentType = "application/ms-excel";
StringWriter sw = new StringWriter();
HtmlTextWriter htw = new HtmlTextWriter(sw);
Table tableExport = new Table();
// Setting line borders to the exported grid
tableExport.GridLines = GridLines.Both;
if (isRemove == false)
{
if (gv.HeaderRow != null)
{
this.PrepareControlForExport(gv.HeaderRow);
tableExport.Rows.Add(gv.HeaderRow);
}
foreach (GridViewRow row in gv.Rows)
{
this.PrepareControlForExport(row);
tableExport.Rows.Add(row);
}
if (gv.FooterRow != null)
{
this.PrepareControlForExport(gv.FooterRow);
tableExport.Rows.Add(gv.FooterRow);
}
}
else
{
if (arrayList.Count > 0)
{
if (gv.HeaderRow != null)
{
this.PrepareControlForExport(gv.HeaderRow);
tableExport.Rows.Add(gv.HeaderRow);
for (int removeColumn = 0; removeColumn < arrayList.Count; removeColumn++)
{
gv.HeaderRow.Cells.Remove(gv.HeaderRow.Cells[Int32.Parse(arrayList[removeColumn].ToString())]);
}
}
foreach (GridViewRow row in gv.Rows)
{
this.PrepareControlForExport(row);
for (int removeColumn = 0; removeColumn < arrayList.Count; removeColumn++)
{
row.Cells.Remove(row.Cells[Int32.Parse(arrayList[removeColumn].ToString())]);
}
tableExport.Rows.Add(row);
}
if (gv.FooterRow != null)
{
this.PrepareControlForExport(gv.FooterRow);
tableExport.Rows.Add(gv.FooterRow);
for (int removeColumn = 0; removeColumn < arrayList.Count; removeColumn++)
{
gv.FooterRow.Cells.Remove(gv.FooterRow.Cells[Int32.Parse(arrayList[removeColumn].ToString())]);
}
}
}
}
tableExport.RenderControl(htw);
HttpContext.Current.Response.Write(sw.ToString().Trim());
HttpContext.Current.Response.End();
}
/// <summary>
/// Prepaing the control for export
/// Customize your controls depening on your logic ///
/// </summary>
/// <param name="control"></param>
private 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);
if ((current as LinkButton).Style["display"] != "none" && (current as LinkButton).Visible)
{
control.Controls.AddAt(i, new LiteralControl((current as LinkButton).Text.Trim()));
}
}
else if (current is ImageButton)
{
control.Controls.Remove(current);
control.Controls.AddAt(i, new LiteralControl((current as ImageButton).AlternateText.Trim()));
}
else if (current is HyperLink)
{
control.Controls.Remove(current);
control.Controls.AddAt(i, new LiteralControl((current as HyperLink).Text.Trim()));
}
else if (current is DropDownList)
{
control.Controls.Remove(current);
control.Controls.AddAt(i, new LiteralControl((current as DropDownList).SelectedItem.Text.Trim()));
}
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 HtmlAnchor)
{
control.Controls.Remove(current);
control.Controls.AddAt(i, new LiteralControl((current as HtmlAnchor).InnerText.Trim()));
}
else if (current is Label)
{
control.Controls.Remove(current);
if ((current as Label).Style["display"] != "none" && (current as Label).Visible)
{
control.Controls.AddAt(i, new LiteralControl((current as Label).Text.Trim()));
}
}
if (current.HasControls())
{
this.PrepareControlForExport(current);
}
}
}
#endregion Methods : ExportGridView & PrepareControlForExport
Sample code to call code behind
ArrayList list = new ArrayList();
DraftsGridView.AllowPaging = false;
BindDrafts("StartDateTime", ASCENDING);
// Add list of columns that are to be hidden. If you not need any columns
//then just send list object without adding any and set the third parameter to false
list.Add(3);
common.ExportGridView("Drafts.xls", DraftsGridView, true, list);
