I need to export nested Gridview to Excel with the following code that I get from search, but when I click the Export button it raised an error:
An exception of type 'System.ArgumentOutOfRangeException' occurred in
mscorlib.dll but was not handled in user code
This is the code:
protected void ExportExcel(object sender, EventArgs e)
{
DataTable dt = new DataTable("GridView_Data");
GridView grvPayrollDetails = (GridView)grvPayroll.Rows[1].FindControl("grvPayrollDetails");
foreach (TableCell cell in grvPayroll.HeaderRow.Cells)
{
dt.Columns.Add(cell.Text);
}
foreach (TableCell cell in grvPayrollDetails.HeaderRow.Cells)
{
dt.Columns.Add(cell.Text);
}
dt.Columns.RemoveAt(0);
foreach (GridViewRow row in grvPayroll.Rows)
{
GridView grvPayrollDetailscell = (row.FindControl("grvPayrollDetails") as GridView);
for (int j = 0; j < grvPayrollDetailscell.Rows.Count; j++)
{
dt.Rows.Add(row.Cells[1].Text, row.Cells[2].Text, grvPayrollDetailscell.Rows[j].Cells[0].Text, grvPayrollDetailscell.Rows[j].Cells[1].Text);
}
}
using (XLWorkbook wb = new XLWorkbook())
{
wb.Worksheets.Add(dt);
Response.Clear();
Response.Buffer = true;
Response.Charset = "";
Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
Response.AddHeader("content-disposition", "attachment;filename=grvPayrollDetails.xlsx");
using (MemoryStream MyMemoryStream = new MemoryStream())
{
wb.SaveAs(MyMemoryStream);
MyMemoryStream.WriteTo(Response.OutputStream);
Response.Flush();
Response.End();
}
}
}
grvPayroll is the Master Gridview and Gridview grvPayrollDetails is the nested child Gridview. Please help!
I followed this guide: Export Nested GridView (GridView inside GridView) to Excel in ASP.Net
And this is the Nested Gridview :
Nested Gridview
Change your following line GridView grvPayrollDetails = (GridView)grvPayroll.Rows[1].FindControl("grvPayrollDetails"); with below code
GridView grvPayrollDetails = null;
foreach (GridViewRow row in grvPayroll.Rows)
{
if (row.HasControls())
{
foreach (Control ctrl in row.Controls)
{
if (ctrl.ID == "grvPayrollDetails" && grvPayrollDetails != null)
{
grvPayrollDetails = (GridView)ctrl;
break;
}
}
if (grvPayrollDetails != null)
{
break;
}
}
}
you should modify your for loop to run for count - 1, and use if condition to check row.Cells should be >= 3
for (int j = 0; j < grvPayrollDetailscell.Rows.Count - 1; j++)
{
if(row.Cells.Count >= 3)
{
dt.Rows.Add(row.Cells[1].Text, row.Cells[2].Text, grvPayrollDetailscell.Rows[j].Cells[0].Text, grvPayrollDetailscell.Rows[j].Cells[1].Text);
Also makesure your dt.Columns have value before removing column at 0 index
if(dt.Columns.Count > 0)
{
dt.Columns.RemoveAt(0);
}
Try this:
public override void VerifyRenderingInServerForm(Control control)
{
/* Confirms that an HtmlForm control is rendered for the specified ASP.NET
server control at run time. */
}
protected void ExportExcel(object sender, EventArgs e)
{
grvPayroll.AllowPaging = false;
var grvPayrollDetails = new GridView();
for (var i = 0; i < grvPayroll.Rows.Count; i++)
{
grvPayrollDetails = (GridView)grvPayroll.Rows[i].FindControl("grvPayrollDetails");
grvPayrollDetails.AllowPaging = false;
BindGrid(SortField);
}
Response.Clear();
Response.Buffer = true;
Response.AddHeader("content-disposition", "attachment;filename=PayrollExport.xls");
Response.Charset = "";
Response.ContentType = "application/vnd.ms-excel";
using (StringWriter sw = new StringWriter())
{
HtmlTextWriter hw = new HtmlTextWriter(sw);
grvPayrollDetails.AllowPaging = false;
this.BindGrid(SortField);
grvPayrollDetails.Font.Name = "Times New Roman";
grvPayrollDetails.BackColor = Color.Transparent;
grvPayrollDetails.GridLines = GridLines.Both;
grvPayrollDetails.RenderControl(hw);
Response.Write(Regex.Replace(sw.ToString(), "(<a[^>]*>)|(</a>)", " ", RegexOptions.IgnoreCase));
Response.Flush();
Response.End();
}
}
Related
I have a gridview which has multiple headers added during run time as shown in snap below:
I want to export the data from this gridview to excel for which I have the following code:
protected void Button1_Click(object sender, EventArgs e)
{
Response.Clear();
Response.Buffer = true;
Response.AddHeader("content-disposition", "attachment;filename=GridViewExport.xls");
Response.Charset = "";
Response.ContentType = "application/vnd.ms-excel";
using (StringWriter sw = new StringWriter())
{
HtmlTextWriter hw = new HtmlTextWriter(sw);
gdView.HeaderRow.BackColor = Color.White;
foreach (TableCell hcell in gdView.HeaderRow.Cells)
{
hcell.BackColor = Color.White;
}
foreach (GridViewRow row in gdView.Rows)
{
{
row.BackColor = Color.White;
foreach (TableCell cell in row.Cells)
{
cell.CssClass = "textmode";
}
}
}
gdView.RenderControl(hw);
//style to format numbers to string
string style = #"<style> .textmode { } </style>";
Response.Write(style);
Response.Output.Write(sw.ToString());
Response.Flush();
Response.End();
}
}
public override void VerifyRenderingInServerForm(System.Web.UI.Control control)
{
// controller
}
The excel output I am getting is as follows:
As you can see the color of the header rows is continuing beyond the table area. Also the top header rows are collapsed in the excel output.
Request you all to kindly suggest how this can be resolved.
Thanks.
I could finally solve the issue by modifying the code as below:
protected void Button1_Click(object sender, EventArgs e)
{
Response.Clear();
Response.Buffer = true;
Response.AddHeader("content-disposition", "attachment;filename=GridViewExport.xls");
Response.Charset = "";
Response.ContentType = "application/vnd.ms-excel";
using (StringWriter sw = new StringWriter())
{
HtmlTextWriter hw = new HtmlTextWriter(sw);
for (int x = 0; x <= 3; x++)
{
GridViewRow rows = (GridViewRow)gdView.HeaderRow.Parent.Controls[x];
rows.BackColor = Color.White;
rows.Height = 15;
for (int i = 0; i <= rows.Cells.Count - 1; i++)
{
rows.Cells[i].BackColor = Color.Maroon;
}
}
foreach (GridViewRow row in gdView.Rows)
{
row.BackColor = Color.White;
foreach (TableCell cell in row.Cells)
{
cell.VerticalAlign = VerticalAlign.Middle;
cell.CssClass = "textmode";
}
}
gdView.RenderControl(hw);
//style to format numbers to string
string style = #"<style> .textmode { } </style>";
Response.Write(style);
Response.Output.Write(sw.ToString());
Response.Flush();
Response.End();
}
}
public override void VerifyRenderingInServerForm(System.Web.UI.Control control)
{
// controller
}
I cannot figure out how to export multiple GridViews to excel. This code only exports 1 GridView and I have 10 of them. GridViews should be separated with an empty row. Ideally, I would like to place those GridViews on the same Excel Sheet. Thanks for looking into this.
protected void ExportExcel(object sender, EventArgs e)
{
DataTable dt = new DataTable("GridView_Data");
foreach(TableCell cell in GridView1.HeaderRow.Cells)
{
dt.Columns.Add(cell.Text);
}
foreach (GridViewRow row in GridView1.Rows)
{
dt.Rows.Add();
for (int i=0; i<row.Cells.Count; i++)
{
dt.Rows[dt.Rows.Count - 1][i] = row.Cells[i].Text;
}
}
using (XLWorkbook wb = new XLWorkbook())
{
wb.Worksheets.Add(dt);
Response.Clear();
Response.Buffer = true;
Response.Charset = "";
Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
Response.AddHeader("content-disposition", "attachment;filename=GridView.xlsx");
using (MemoryStream MyMemoryStream = new MemoryStream())
{
wb.SaveAs(MyMemoryStream);
MyMemoryStream.WriteTo(Response.OutputStream);
Response.Flush();
Response.End();
}
}
}
Any help is appreciated.
Thanks!
In my page I have two textbox controls, where I am gating the date from the Calendar Extender & in the export to excel Button I am going to export the Gridview data to excel sheet.
When I am gating the excel sheet its show the the textbox & button also from which i am export the excel Sheet.
I have written the export code in the Export Button.
Like:-
protected void Export_to_Excel_Click(object sender, EventArgs e)
{
try
{
Response.ClearContent();
Response.Buffer = true;
Response.AddHeader("content-disposition", string.Format("attachment; filename={0}", "Customers.xls"));
Response.ContentType = "application/ms-excel";
StringWriter sw = new StringWriter();
HtmlTextWriter htw = new HtmlTextWriter(sw);
Grd_MidData.AllowPaging = false;
bindgriddata();
//Change the Header Row back to white color
Grd_MidData.HeaderRow.Style.Add("background-color", "#FFFFFF");
//Applying stlye to gridview header cells
for (int i = 0; i < Grd_MidData.HeaderRow.Cells.Count; i++)
{
Grd_MidData.HeaderRow.Cells[i].Style.Add("background-color", "#df5015");
}
Grd_MidData.RenderControl(htw);
Response.Write(sw.ToString());
Response.Flush();
}
catch (Exception ee)
{
}
}
When I am gating the excel sheet it shows the gridview data along with the two text box & the button from where I am doing the filtering.
So any one suggest me, How to show only the gridview data but not show the Textbox & button on the excel sheet.
You have to bind the data to your excel code,
using below code
bindgriddata();
Response.ClearContent();
Response.Buffer = true;
Response.AddHeader("content-disposition", string.Format("attachment; filename={0}", "Customers.xls"));
Response.ContentType = "application/ms-excel";
StringWriter sw = new StringWriter();
HtmlTextWriter ht = new HtmlTextWriter(sw);
Grd_MidData.RenderControl(ht);
Response.Write(sw.ToString());
Response.End();
it is working for me.
Here the gridview data is showing along with the From date: To Date: textbox & the button also. So how can i remove these field from the sheet.
you can use close xml to generate excel it will give more functionlity to create excel and formatting.
protected void Export_to_Excel_Click(object sender, EventArgs e)
{
bindgriddata();
Grd_MidData.DataSource = objDS; // Dataset
Grd_MidData.DataBind();
using (XLWorkbook wb = new XLWorkbook())
{
try
{
//creating worksheet
var ws = wb.Worksheets.Add("Report");
//adding columms header
int columnscount = objDS.Tables[0].Columns.Count;
char a = 'A';
for (int j = 1; j <= columnscount; j++)
{
string str = a + "1";
ws.Cell(str).Value = objDS.Tables[0].Columns[j - 1].ColumnName.ToString();
ws.Cell(str).Style.Border.OutsideBorder = XLBorderStyleValues.Thin;
a++;
}
ws.Columns().AdjustToContents();
//formatting columns header
var rngheaders = ws.Range("A1:J1");
rngheaders.FirstRow().Style
.Font.SetBold()
.Font.SetFontSize(12)
.Font.SetFontColor(XLColor.Black)
.Fill.SetBackgroundColor(XLColor.DeepSkyBlue)
.Alignment.SetHorizontal(XLAlignmentHorizontalValues.Center)
.Border.OutsideBorder = XLBorderStyleValues.Thin;
////adding data to excel
int k = 2;
foreach (DataRow row in objDS.Tables[0].Rows)
{
char b = 'A';
string str = b + "" + k;
for (int i = 0; i < objDS.Tables[0].Columns.Count; i++)
{
ws.Cell(str).Value = row[i].ToString();
ws.Cell(str).Style.Border.OutsideBorder = XLBorderStyleValues.Thin;
ws.Cell(str).Style.Alignment.SetHorizontal(XLAlignmentHorizontalValues.Left);
b++;
str = b + "" + k;
}
k++;
}
Response.Clear();
Response.Buffer = true;
Response.Charset = "";
Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
Response.AddHeader("content-disposition", "attachment;filename=Customer.xlsx");
}
catch { }
using (MemoryStream MyMemoryStream = new MemoryStream())
{
wb.SaveAs(MyMemoryStream);
MyMemoryStream.WriteTo(Response.OutputStream);
Response.Flush();
Response.End();
}
}
}
I had the same issue when exporting a GridView. I added a try/catch and exported the message to Excel and then realized that it was generating an error. I solved it thanks to the following answer: GridView must be placed inside a form tag with runat="server" even after the GridView is within a form tag
I have fetched data from db table, bound it to gridview and then export data from gridview to excel. It works fine.
But when I added a row at the top of gridview in databound event by using below code:
protected void gvReports_DataBound(object sender, EventArgs e)
{
if (gvReports.Rows.Count > 0)
{
GridViewRow row = new GridViewRow(0, 0, DataControlRowType.Header, DataControlRowState.Normal);
int count = gvReports.HeaderRow.Cells.Count;
TableHeaderCell cell = new TableHeaderCell();
cell.BorderWidth = 0;
cell.Text = "Commodity " + ddlCommMFArrival.SelectedItem.Text;
cell.ColumnSpan = count - 2;
row.Controls.Add(cell);
row.BackColor = ColorTranslator.FromHtml("#f5fafd");
gvReports.HeaderRow.Parent.Controls.AddAt(0, row);
}
}
Code to export Gridview to Excel:
protected void btnExport_Click(object sender, EventArgs e)
{
for (int i = 0; i < gvReports.Rows.Count; i++)
{
for (int j = 0; j < gvReports.Rows[i].Cells.Count; j++)
{
if (gvReports.Rows[i].Cells[j].Text == "NA")
{
gvReports.Rows[i].Cells[j].HorizontalAlign = HorizontalAlign.Right;
}
}
}
gvReports.HeaderRow.Cells[1].Visible = false;
gvReports.HeaderRow.Cells[2].Visible = false;
string filename = string.Empty;
int ddlselect = Convert.ToInt32(ddlCommMFArrival.SelectedValue);
if (ddlselect == 1)
{
filename = "MarketFee" + DateTime.Now.ToString().Replace("/", "").Replace(":", "").Replace(" ", "") + "";
}
else if (ddlselect == 2)
{
filename = "Commodity Arrival" + DateTime.Now.ToString().Replace("/", "").Replace(":", "").Replace(" ", "") + "";
}
//Export gridview data into MS Excel
blExportToExcel blExport = new blExportToExcel();
//Export gridview data into MS Excel
blExport.ExportGridViewToExcel(gvReports, this, filename);
}
public void ExportGridViewToExcel(GridView grv, System.Web.UI.Page pg, string fileName)
{
grv.AllowPaging = false;
pg.Response.Clear();
pg.Response.AddHeader("content-disposition", "attachment; filename=" + fileName + ".xls");
pg.Response.Charset = "";
pg.Response.ContentType = "application/vnd.xls";
System.IO.StringWriter stringWrite = new System.IO.StringWriter();
System.Web.UI.HtmlTextWriter htmlWrite = new HtmlTextWriter(stringWrite);
grv.RenderControl(htmlWrite);
pg.Response.Write(stringWrite.ToString());
pg.Response.End();
grv.AllowPaging = true;
}
Then it adds a blank row at position 0 as well as in excel (export data from gridview to excel) and truncates the last row from gridview. Anyone knows what is the issue?
Try moving your HeaderRow addition logic out of DataBound and into RowCreated. Add this to the GridView declaration:
OnRowCreated="gvReports_RowCreated"
And then this is the RowCreated (note the DataControlRowState.Insert):
protected void gvReports_RowCreated(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.Header)
{
GridViewRow row = new GridViewRow(0, 0, DataControlRowType.Header, DataControlRowState.Insert);
int count = e.Row.Cells.Count;
TableHeaderCell cell = new TableHeaderCell();
cell.BorderWidth = 0;
cell.Text = "blah";
cell.ColumnSpan = count - 2;
row.Controls.Add(cell);
row.BackColor = ColorTranslator.FromHtml("#f5fafd");
gvReports.Controls[0].Controls.AddAt(0, row);
}
}
hi i am developing an application where i am using a grid to dispaly data and adding a dynamic datatable as the header of the gridview and iam using the following code to export the grid view into excel but i am unable get the datatable which was added dynamically to the grid into the excel. the code i am using is:
Response.AddHeader("content-disposition", "attachment;filename=Report.xls");
Response.Charset = String.Empty;
Response.ContentType = "application/vnd.xls";
System.IO.StringWriter sw = new System.IO.StringWriter();
System.Web.UI.HtmlTextWriter hw = new HtmlTextWriter(sw);
GridView1.DataBind();
GridView1.RenderControl(hw);
Response.Write(sw.ToString());
Response.End();
is thee any other method to follow.
Thanks in advance!
I don't see where you are adding the dynamic datatable as the header?? This should come after the databind and before the GridView1.RenderControl(hw);
try this one in the button click event
protected void btnExcel_Click(object sender, ImageClickEventArgs e)
{
Response.ClearContent();
Response.Buffer = true;
Response.AddHeader("content-disposition", string.Format("attachment; filename= {0}", "Customers.xls"));
Response.ContentType = "application/ms-excel";
StringWriter sw = new StringWriter();
HtmlTextWriter htw = new HtmlTextWriter(sw);
gvdetails.AllowPaging = false;
gvdetails.DataBind();
//Change the Header Row back to white color
gvdetails.HeaderRow.Style.Add("background-color", "#FFFFFF");
//Applying stlye to gridview header cells
for (int i = 0; i < gvdetails.HeaderRow.Cells.Count; i++)
{
gvdetails.HeaderRow.Cells[i].Style.Add("background-color", "#507CD1");
}
int j = 1;
//This loop is used to apply stlye to cells based on particular row
foreach (GridViewRow gvrow in gvdetails.Rows)
{
gvrow.BackColor = Color.White;
if (j <= gvdetails.Rows.Count)
{
if (j % 2 != 0)
{
for (int k = 0; k < gvrow.Cells.Count; k++)
{
gvrow.Cells[k].Style.Add("background-color", "#EFF3FB");
}
}
}
j++;
}
gvdetails.RenderControl(htw);
Response.Write(sw.ToString());
Response.End();
}
this will export gridview in formatted output file
Response.Clear();
Response.Buffer = true;
Response.AddHeader("content-disposition", "attachment; filename=gridSample.xls");
Response.Charset = "";
Response.ContentType = "application/vnd.ms-excel";
using (StringWriter sw = new StringWriter())
{
HtmlTextWriter hw = new HtmlTextWriter(sw);
//to export all pages
gridSample.AllowPaging = false;
gridSample.DataSource = progress.getSample();
gridSample.DataBind();
//bind again
gridSample.HeaderRow.BackColor = Color.White;
foreach (TableCell cell in gridSample.HeaderRow.Cells)
{
cell.BackColor = gridSample.HeaderStyle.BackColor;
}
foreach (GridViewRow row in gridSample.Rows)
{
row.BackColor = Color.White;
foreach (TableCell cell in row.Cells)
{
if (row.RowIndex % 2 == 0)
{
cell.BackColor = gridSample.AlternatingRowStyle.BackColor;
}
else
{
cell.BackColor = gridSample.RowStyle.BackColor;
}
cell.CssClass = "textmode";
}
}
gridSample.RenderControl(hw);
//style to format numbers to string
string style = #"<style> .textmode { } </style>";
Response.Write(style);
Response.Output.Write(sw.ToString());
Response.Flush();
Response.End();
}