Develop Reference

I Want to verify that Sum of 3 Row values is equal to the first row in on my WebTable using Selenium C#. The Rows are Row3, Row6 & Row8

IList<IWebElement> rows = _driver.FindElements(By.XPath("//div[#id='data_3']/div/div/div[3]/table/tbody/tr[#class]"));
for (int i = 1; i <= rows.Count; i++)
{
IList<IWebElement> columns = _driver.FindElements(By.XPath("//div[#id='data_3']/div/div/div[3]/table/tbody/tr[#class][" + i + "]/td[#class]"));
for (int j = 1; j <= columns.Count; j++)
{
}
}

From what I understand, you need to sum values from three rows and check if it is equal to the value from the first one. I will use the path you have provided.
public int GetRowValue(int rowNumber)
{
var row = _driver.FindElements(By.XPath("//div[#id='data_3']/div/div/div[3]/table/tbody/tr[#class]"))[rowNumber - 1] // decreased by 1, because if you would like to get first row, it would have 0th index in the array
var columns = row.FindElements(By.XPath("./td"); // find all tds of the given row.
int value = 0;
foreach(var column in columns)
{
if (String.IsNullOrEmpty(column.Text)) continue;
result += Int32.Parse(column.Text);
}
return value;
}
With that, you can easily check what you want.
var row1Value = GetRowValue(1);
var sum = GetRowValue(3);
sum += GetRowValue(6);
sum += GetRowValue(8)
Assert.Equals(row1Value, sum);

How to merge first 3 columns for rows with same value in PDF

I'm using itextSharp to export a DataTable to a pdf table. I can export the data to a pdf table using the sample code i have posted below. The DataTable contains close to 21 columns.
The first column in the pdf (DataTable) might contain similar values for any number of rows. If the data values in first column for a group of rows is similar, i want to merge the first 3 columns of those rows as one cell.
I'm having trouble modifying the code below to achieve this.
public iTextSharp.text.Table GetItextTable(DataTable dtChartData, string reportType)
{
int intCols = dtChartData.Columns.Count; //Total number of columns
int intRows = dtChartData.Rows.Count; //Total number of rows
iTextSharp.text.Table pdfTable = new iTextSharp.text.Table(intCols, intRows);
try
{
pdfTable.BorderWidth = 1;
pdfTable.Width = 100;
pdfTable.Padding = 1;
pdfTable.Spacing = 1;
/*creating table headers */
for (int i = 0; i < intCols; i++)
{
iTextSharp.text.Cell cellCols = new iTextSharp.text.Cell();
iTextSharp.text.Font ColFont = iTextSharp.text.FontFactory.GetFont("Tahoma", 07,
iTextSharp.text.Font.BOLD);
for (int l = 0; l < dtChartData.Columns.Count; l++)
{
if (dtChartData.Columns[l].ColumnName.Contains("_"))
{
dtChartData.Columns[l].ColumnName = dtChartData.Columns[l].ColumnName.Replace("_", " ");
}
}
iTextSharp.text.Chunk chunkCols = new iTextSharp.text.Chunk(dtChartData.Columns[i].ColumnName,ColFont);
cellCols.HorizontalAlignment = iTextSharp.text.Element.ALIGN_CENTER;
if ((chunkCols.ToString().ToLower() == "ReportDetails"))
{
cellCols.HorizontalAlignment = iTextSharp.text.Element.ALIGN_CENTER;
}
}
/* loop that take values from every row in datatable and insert in itextsharp table */
for (int k = 0; k < intRows; k++)
{
for (int j = 0; j < intCols; j++)
{
iTextSharp.text.Cell cellRows = new iTextSharp.text.Cell();
iTextSharp.text.Font RowFont = iTextSharp.text.FontFactory.GetFont("Tahoma", 07);
iTextSharp.text.Chunk chunkRows = new iTextSharp.text.Chunk(dtChartData.Rows[k][j].ToString(),RowFont);
cellRows.HorizontalAlignment = iTextSharp.text.Element.ALIGN_CENTER;
cellRows.Add(chunkRows);
pdfTable.AddCell(cellRows);
}
}
}
catch (Exception ex)
{
//error handling code here removed
}
return pdfTable;
}

Have you tried to change the Colspan?
iTextSharp.text.Cell cell = new iTextSharp.text.Cell();
cell.AddElement(new Paragraph("colspan 3"));
cell.Colspan = 3;
table.AddCell(cell);
In this case, cell will span three columns.

try this. i just edited your code, not checked
here i have edited 1 line of your code and added a new line (total 2 lines of change only).
dont forget to combine headding row like this, if you need
/* loop that take values from every row in datatable and insert in itextsharp table */
for (int k = 0; k < intRows; k++)
{
for (int j = 2; j < intCols; j++)// EDIT: if all first 3 cols are same, then starts with 2
{
iTextSharp.text.Cell cellRows = new iTextSharp.text.Cell();
if(j == 2) cellRows.Colspan = 3;// ADD: it'll gives a 3 times long cell
iTextSharp.text.Font RowFont = iTextSharp.text.FontFactory.GetFont("Tahoma", 07);
iTextSharp.text.Chunk chunkRows = new iTextSharp.text.Chunk(dtChartData.Rows[k][j].ToString(),RowFont);
cellRows.HorizontalAlignment = iTextSharp.text.Element.ALIGN_CENTER;
cellRows.Add(chunkRows);
pdfTable.AddCell(cellRows);
}
}

How do I use For Loop twice to find datatable columns and rows?

I want to use for loop to get average of datatable columns and rows. What I want to do is that what if there are 100 ~ 1000 columns and rows, I can't keep on adding them in the code. is there one simple code that can get average of automatically as I add columns and rows?
here is my code, I am stuck I don't know what to write in ?? area below and this code gets me error please help...
private void button1_Click(object sender, EventArgs e)
{
DataTable dtGrid = gridData.DataSource as DataTable;
DataTable dtResult = new DataTable();
Math columnIndex = new Math();
List<double> avgList = new List<double>();
for (int i = 0; i < dtGrid.Columns.Count; i++)
{
for (int k = 1; k < dtGrid.Rows.Count; k++)
{
// ??
avgList.Add(Convert.ToDouble(dtGrid.Rows[i].ToString()));
}
}
//this is from other class name Math
/* public double getAverageValue(List<double> avgList)
{
double averageList = 0;
averageList = MathNet.Numerics.Statistics.Statistics.Mean(avgList.ToList());
return averageList;
}*/
double averageX1 = columnIndex.getAverageValue(avgList);
List<Math> list = new List<Math>();
//using get; set from other class
list.Add(new Math { Result = "Average", X1 = averageX1.ToString() });
gridData2.DataSource = list;
}
}
}

It looks like your loop is inside out. Try this:
DataTable dtGrid = gridData.DataSource as DataTable;
DataTable dtResult = new DataTable();
Math columnIndex = new Math();
List<double> avgList = new List<double>();
for (int k = 1; k < dtGrid.Rows.Count; k++)
{
for (int i = 0; i < dtGrid.Columns.Count; i++)
{
// ??
avgList.Add(Convert.ToDouble(dtGrid.Rows[k].Columns[i].ToString()));
}
}
This logic averages all columns in a row together. If you need,, you can create a Dictionary and average each column separately. Something like thisL
Dictionary<int, List<double>> AvgColumnList = new Dictionary<int, System.Collections.Generic.List<double>>();
This uses a dictionary that contains a list for each column in the row. If there are 100 columns, then there will be 100 entries in the dictionary with index 0 - 99. Each dictionary item will contain a list of doubles.
for (int k = 1; k < dtGrid.Rows.Count; k++)
{
for (int i = 0; i < dtGrid.Columns.Count; i++)
{
if (!AvgColumnList.Keys.Contains(i))
AvgColumnList.Add(i, new List<double>());
AvgColumnList[i].Add(Convert.ToDouble(dtGrid.Rows[k].Columns[i].ToString()));
}
}

DataTable is zero index based, in your code row count started from 1 it should be 0, also dtGrid.Rows[i] is a row not the cell value. Use below code to loop through each cell of a DataTable
Update : Code updated as OP want to save each column data separately and irrespective of column numbers.
List<List<double>> perColumnAvg = new List<List<double>>();
for (int i = 0; i < dtGrid.Columns.Count; i++)
{
avgList = new List<double>();
for (int k = 0; k < dtGrid.Rows.Count; k++)
{
// ??
avgList.Add(Convert.ToDouble(dtGrid.Rows[k][i].ToString()));
}
perColumnAvg.Add(avgList);
}
Now you can compute individual column average as
foreach (var columnList in perColumnAvg)
{
// place your logic here.
columnIndex.getAverageValue(columnList);
}
And can compute avg across table using.
double tableAvg = columnIndex.getAverageValue(perColumnAvg.SelectMany(s=>s));

C# MVC Amount of Rows in Excel?

I have a piece of code below - which is looping through an Excel workbook adding the data to an SQL Database - However the forloop doesn't stop when the data runs out.
int rowCount = worksheet.Rows.Count -1;
for (int i = 3; i < rowCount; i++ )
{
Spreadsheet spreadsheetToSave = new Spreadsheet();
Estimate estimateToSave = new Estimate();
RAA raaToSave = new RAA();
spreadsheetToSave.Phases = worksheet.Cells[4, i].Value;
spreadsheetToSave.Deliverables = worksheet.Cells[5, i].Value;
if (worksheet.Cells[6,i].Value == "Y")
{
spreadsheetToSave.Scope = true;
}
else
{
spreadsheetToSave.Scope = false;
}
spreadsheetToSave.Description = worksheet.Cells[7, i].Value;
//estimateToSave.Estimate1 = Convert.ToDecimal(worksheet.Cells[8, i].Value);
//estimateToSave.Estimate2 = Convert.ToDecimal(worksheet.Cells[9, i].Value);
//estimateToSave.Estimate3 = Convert.ToDecimal(worksheet.Cells[10, i].Value);
estimateToSave.Estimate1 = 1;
estimateToSave.Estimate2 = 1;
estimateToSave.Estimate3 = 1;
spreadsheetToSave.Estimate = estimateToSave;
db.Spreadsheet.Add(spreadsheetToSave);
Can anyone help?
Thanks :)

Try replacing your first two lines of code with this:
int rowCount = worksheet.UsedRange.Rows.Count;
for (int i = 3; i <= rowCount; i++)
This loops from row 3 to the last filled row.
Also you should check the rest of your code: as far as is know in
worksheet.Cells[rowIndex, columnIndex]
the rowIndex comes first :)

Sum of rows in DataTable -- invalid cast?

1.) ***Ok, so I have my DataTable that is imported from an Excel SpreadSheet and it is filled.I would like to sift through the DataTable and sum each row. I have to skip the first column & the first rows because they are labels. I am trying to reach each row in the table and total it and output to a "Row Total" column .. I am getting a "invalid cast specified" when I am trying to assign the 'number' variable to try and sum each cells value.
Example:
Row(0) --------------------ItemA......ItemB.......ItemC..............RowTotal
Column(1) CompanyA .....12 ..........12.............10....................34
2.) Also, I haven't reached it yet -- there is a potential issue with my trying to output it to the last column in the DataTable.
noted by: dr[dt.Columns.Count - 1] = Convert.ToInt32(sum);
Any thoughts or suggestions?
DataRow dr = dt.NewRow();
int sum = 0;
dt.Columns.Add("Row Totals", typeof(int));
for (int i = 0; i < dt.Columns.Count; i++)
{
if (dt.Columns[i].ColumnName == "Client")
{
dt.Columns.Cast<DataColumn>().Skip(1);
}
else
{
for (int j = 0; j < dt.Rows.Count - 1; j++)
{
dt.Rows.Cast<DataRow>().Skip(1);
int number =0;
number = (dt.Rows[j].Field<int>(i));
sum += number;
dr[dt.Columns.Count - 1] = Convert.ToInt32(sum);
Console.WriteLine("Row : {0} , Column : {1} , Value : {2}", i,j, dt.Rows[i][j].ToString());
Console.WriteLine(sum);
}
Console.ReadLine();
}
}
UPDATE: 12/27/12 ************
So, a solution I'm trying is to just skip the rows and column I know are text. I am still getting the "specified cast not valid" when it tries to filter through each cell and sum it. Any more suggestions?
Thank you in advance.
DataRow dr = dt.NewRow();
int sum = 0;
int number = 0;
for (int i = 0; i < dt.Columns.Count-1; i++)
{
if (dt.Columns[i].ColumnName == "column1")
{
dt.Columns.Cast<DataColumn>().Skip(0);
}
if (dt.Columns[i].ColumnName == "column2")
{
dt.Columns.Cast<DataColumn>().Skip(1);
}
else
{
for (int j = 0; j < dt.Rows.Count; j++)
{
dt.Rows.Cast<DataRow>().Skip(0);
dt.Rows.Cast<DataRow>().Skip(1);
//if (number != -1 && number != 0)
//{
number = (dt.Rows[j].Field<int>(i));
sum += number;
dr[dt.Rows.Count] = Convert.ToInt32(sum);
//}
//else
//{
// number = 0;
//}
Console.WriteLine("Row : {0} , Column : {1} , Value : {2}", i, j, dt.Rows[i][j].ToString());
Console.WriteLine(sum);
}
Console.ReadLine();
dataGridView1.DataSource = dt;
}
**UPDATE 12/27 1:30pm
I have scratched all that previous code and am attempting a test sheet and output. It seems to be working except now I can't seem to get the items to total when I am adding them to the last row. I'm stuck in the "else"" section of the code.
for (int i = 0; i < dt.Columns.Count - 2; i++)
{
for (int j = 0; j < dt.Rows.Count - 1; j++)
{
string value = dt.Rows[i][j].ToString();
int num = 0;
bool res = int.TryParse(value, out num);
if (res == false)
{
num = 0;
}
else
{
int sum = 0;
sum += num;
DataRow dr;
dr["Totals"] = sum;
dt.Rows.Add(dr);
}
}
dataGridView1.DataSource = dt;
}
}

One possibility is that there is a blank value in your data table - you can't cast a null object to an integer, so the Field extension method may be failing.