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There are many situation where you need to use transactions in order to avoid incorrect updation or half updation in the database.SO we use transaction that either all data updated or nothing will effect. Here is the code :  SqlTransaction trans;         if (con.State == ConnectionState.Closed)             con.Open();         trans = con.BeginTransaction();         try         {             DataTable dtCourses = new DataTable();             dtCourses.Columns.Add(new DataColumn("RegistrationNumber", typeof(long)));             dtCourses.Columns.Add(new DataColumn("CurrentTerm", typeof(string)));      ...

Here is the code :  string msg = "";         if (RadGrid1.MasterTableView.Items.Count > 0)         {             foreach (GridDataItem item in RadGrid1.MasterTableView.Items)             {                 if ((item.FindControl("RadioButtonList1") as RadioButtonList).SelectedValue.ToString() == "Continue")                 {                     if ((item.FindControl("txtamount") as TextBox).Text == "" || (item.FindControl("txtddamount") as TextBox).Text == "" || (item.FindControl("txtddnumber") as TextBox).Text == "" || (!(item.FindControl("rdpdddate") as RadDa...

Code :    public void ClearControls(Control c)     {         foreach (Control c1 in c.Controls)         {             if (c1.GetType() == typeof(TextBox))             {                 ((TextBox)c1).Text = "";             }             if (c1.HasControls())             {                 ClearControls(c1);             }         }     } ClearControls(Page);

Here is the code :-   OleDbConnection vConn = new OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=E:\\information.xls;Extended Properties=Excel 12.0");             vConn.Open();             try             {                 String rQLlll = "DROP TABLE NewTempTable ;";                 OleDbCommand mdd = new OleDbCommand(rQLlll, vConn);                 mdd.ExecuteNonQuery();             }             catch             {             }             String strSQL = "SELECT NULL as thuluuuuu,* INTO NewTempTable FROM [data$];";             OleDbCommand cmd = new OleDbCommand(s...

function to convert :-  protected void UploadDataTableToExcel(DataTable dtEmp, string filename)     {         string attachment = "attachment; filename=" + filename;         Response.ClearContent();         Response.AddHeader("content-disposition", attachment);         Response.ContentType = "application/vnd.ms-excel";         string tab = string.Empty;         foreach (DataColumn dtcol in dtEmp.Columns)         {             Response.Write(tab + dtcol.ColumnName);             tab = "\t";         }         Response.Write("\n");         foreach (DataRow dr in dtEmp.Rows)         {             tab = "";             for (i...

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In this Use the following code:    ddlLearningCentre.SelectedIndex = -1; // use this before to correct this error    ddlLearningCentre.Items.FindByText(vdt.Rows[0]["enquirylccode"].ToString()).Selected = true; Done

Code:   ListItem bli =  rdoLstAdmissionType.Items[2];               bli.Attributes.Add("hidden", "hidden"); done :)

CODE :   private void btnprint_Click(object sender, EventArgs e)         {       PrintDocument document = new PrintDocument();             document.PrintPage += new PrintPageEventHandler(document_PrintPage);             PrintPreviewDialog ppDialog = new PrintPreviewDialog();             ppDialog.Document = document;             ppDialog.Show();         }  void document_PrintPage(object sender, PrintPageEventArgs e)         {             PrintDocument document = (PrintDocument)sender;             Graphics g = e.Graphic...

Some things only unfold with time. The moment you realize you’ve seen it all, unexpected things happen. But again, life would be boring otherwise. Fasten your seat-belts and wear a helmet. The road’s gonna get messy! 1. You will realize why Friday is the best day of the week Source 2. And, Monday the worst Source 3. You will understand why LinkedIn exists Source ..and probably spend some time ‘endorsing’ rather than ‘liking’. 4. Be sorry for not getting serious with the right person Source ..at the right time.  5. What happens when you leave your computer unlocked at office You never valued the lock screen until you met prankster co-workers. 6. You will be in the wrong industry (or have a degree in something you hate) Worry not, you’re not alone. Even Sachin wanted to be a Tennis player. 7. Facebook will be filled with engagement and marriage pics ..and those honeymoon pics we never asked for. 8. And when you w...