csv file to DataTable in C#

  private static object GetDataTabletFromCSVFile(string csv_file_path)
        {
            DataTable csvData = new DataTable();

            try
            {

                using (TextFieldParser csvReader = new TextFieldParser(csv_file_path))
                {
                    csvReader.SetDelimiters(new string[] { "," });
                    csvReader.HasFieldsEnclosedInQuotes = true;
                    string[] colFields = csvReader.ReadFields();
                    foreach (string column in colFields)
                    {
                        DataColumn datecolumn = new DataColumn(column);
                        datecolumn.AllowDBNull = true;
                        csvData.Columns.Add(datecolumn);
                    }
                    bool isInvoiceMissed = false, isBaseAmountMissed = false;
                    while (!csvReader.EndOfData)
                    {
                        string[] fieldData = csvReader.ReadFields();

                        if (string.IsNullOrEmpty(fieldData[0].ToString()) || fieldData[0].ToString() == "0")
                            isInvoiceMissed = true;

                        if (string.IsNullOrEmpty(fieldData[21].ToString()))
                            isBaseAmountMissed = true;

                        //Making empty value as null
                        for (int i = 0; i < fieldData.Length; i++)
                        {
                            if (fieldData[i] == "")
                            {
                                fieldData[i] = null;
                            }
                        }
                        csvData.Rows.Add(fieldData);
                    }
                    if (isInvoiceMissed && !isBaseAmountMissed)
                        return 1;//"Invoice is missing in Excel files";
                    else if (!isInvoiceMissed && isBaseAmountMissed)
                        return 2;//"Base amount is missing in Excel files";
                    else if (isInvoiceMissed && isBaseAmountMissed)
                        return 3;
                    else
                        return csvData;
                }
            }
            catch (Exception ex)
            {
            }
            return csvData;
        }

the remote computer requires network level authentication which your computer does not support xp

how to fix windows RDP client

To fix windows 7 or XP SP3 clients do the following


• Configure Network Level Authentication


1. Click Start, click Run, type regedit, and then press ENTER.

2. In the navigation pane, locate and then click the following registry
subkey: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa

3. In the details pane, right-click Security Packages, and then click Modify.

4. In the Value data box, type tspkg. Leave any data that is specific to other SSPs, and then click OK.

5. In the navigation pane, locate and then click the following registry
subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders

6. In the details pane, right-click SecurityProviders, and then click Modify.

7. In the Value data box, type credssp.dll. Leave any data that is specific to other SSPs, and then click OK.

8. Exit Registry Editor.

9. Restart the computer.
http://technet.microsoft.com/en-in/library/cc732713.aspx 

Tamil Font in Skype

1. Click on "Start->Control Panel->(Date, Time, Language and Regional Options)->Regional and Language Options"
   
2. Click on 'Languages' tab (next to 'Regional Options') at the top
   
3. In 'Supplemental language support', see whether "Install files for complex script and right to left languages (including thai)" is kept ticked.
   
4. If ticked, leave it as it is. This means your computer is already fully enabled for Unicode. You need not do anything further and skip the steps below.
   
5. If not ticked, tick it (but please read the 'Important Note' below before ticking). It will install the required files and ask you to reboot

http://www.azhagi.com/pics/azp-unicode-enable.gif

DataSet to JSON, JSON to DataSet , and JSON to DataTable C#

DataSet to JSON

using Newtonsoft.Json;

         //objUserValidation is dataset variable and it contains tables
string jsonValue = JsonConvert.SerializeObject(objUserValidation, Formatting.Indented);


 JSON to DataSet
  using Newtonsoft.Json; 

             System.Data.DataSet ds = new System.Data.DataSet();
                System.Xml.XmlDocument xd = new System.Xml.XmlDocument();
               //jsonValue it contains json value
                 xd = (System.Xml.XmlDocument)JsonConvert.DeserializeXmlNode(jsonValue.ToString(), "jsonValue");

                ds.ReadXml(new System.Xml.XmlNodeReader(xd));

disable the hibernate in windows 7 using command prompt.

powercfg -h off

DataSet to Excel in asp.net sample example.

 public static void Excell(DataSet ds)
        {
            try
            {
                string FileName = "F:\\Testing-"+System.DateTime.Now.Hour.ToString()+"-"+DateTime.Now.Minute.ToString()+".xslx";
                //DataSet ds = new DataSet("myDataset");
                ds.DataSetName = "myDataset";

                Microsoft.Office.Interop.Excel.Application ExcelApp = new Microsoft.Office.Interop.Excel.Application();

                Workbook ExcelWorkBook = null;

                Worksheet ExcelWorkSheet = null;



                ExcelApp.Visible = true;

                ExcelWorkBook = ExcelApp.Workbooks.Add(XlWBATemplate.xlWBATWorksheet);

               
                List<string> SheetNames = new List<string>();
                for (int j = 0; j < ds.Tables.Count; j++)
                {
                    SheetNames.Add(ds.Tables[j].TableName);
                }
               
                for (int i = 1; i < ds.Tables.Count; i++)
                    ExcelWorkBook.Worksheets.Add(); //Adding New sheet in Excel Workbook



                for (int i = 0; i < ds.Tables.Count; i++)
                {
                    int r = 1; // Initialize Excel Row Start Position  = 1
                    ExcelWorkSheet = ExcelWorkBook.Worksheets[i + 1];
                    //Writing Columns Name in Excel Sheet
                    for (int col = 1; col < ds.Tables[i].Columns.Count; col++)
                        ExcelWorkSheet.Cells[r, col] = ds.Tables[i].Columns[col - 1].ColumnName;
                    r++;

                    //Writing Rows into Excel Sheet

                    for (int row = 0; row < ds.Tables[i].Rows.Count; row++) //r stands for ExcelRow and col for ExcelColumn
                    {
                        // Excel row and column start positions for writing Row=1 and Col=1
                        for (int col = 1; col < ds.Tables[i].Columns.Count; col++)

                            ExcelWorkSheet.Cells[r, col] = ds.Tables[i].Rows[row][col - 1].ToString();

                        r++;

                    }

                    ExcelWorkSheet.Name = SheetNames[i];//Renaming the ExcelSheets
                }

                ExcelWorkBook.SaveAs(FileName);
                ExcelWorkBook.Close();
                ExcelApp.Quit();
                Marshal.ReleaseComObject(ExcelWorkSheet);
                Marshal.ReleaseComObject(ExcelWorkBook);
                Marshal.ReleaseComObject(ExcelApp);
            }
            catch (Exception ex)
            {

            }
        }
using Microsoft.Office.Interop;
using Microsoft.Office.Interop.Excel;

Find Last Date Time Updated for Any Table

SQL SERVER – Find Last Date Time Updated for Any Table

I just received an email from one of my regular readers who is curious to know if there is any way to find out when a table is recently updated. I was ready with my answer! I promptly suggested him that if a table contains UpdatedDate or ModifiedDate date column with default together with value GETDATE(), he should make use of it. On close observation the table is not required to keep history when any row is inserted. However, the sole prerequisite is to be aware of when any table has been updated. That’s it!

If a user wants to finds out when was the last table updated he can query dynamic management view (dmv) – sys.dm_db_index_usage_stats and easily figure out when was the table updated last. Let us comprehend this example by creating a table and updating it. We can use dmv to determine when it was updated last.

USE AdventureWorks
GO
CREATE TABLE Test
(ID INT,
COL VARCHAR(100))
GO
INSERT INTO Test
SELECT 1,'First'
UNION ALL
SELECT 2,'Second'
GO

Now we have created a table and populated it with data. Next, we will run the following query to find out when it was last updated.

SELECT OBJECT_NAME(OBJECT_ID) AS DatabaseName, last_user_update,*
FROM sys.dm_db_index_usage_stats
WHERE database_id = DB_ID( 'AdventureWorks')
AND OBJECT_ID=OBJECT_ID('test')

Running query provides accurate details of when was  the table last updated. If WHERE condition is entirely removed it will provide details of the entire database.

Source