页面按钮点击后回发

问题描述

protected void Button3_Click(object sender, EventArgs e)
{
   bool isAnythingChecked = false;

   foreach (GridViewRow row in GridView1.Rows)
   {
      CheckBox chk = (CheckBox)row.FindControl("chk1");
      string empname = row.Cells[1].Text;
      string leaveid = row.Cells[2].Text;
      if (chk != null && chk.Checked)
      {
         isAnythingChecked = true;
          try
          {
              //Create sql connection and command
              string strConnect;
              strConnect = "Data Source=BALA;Initial Catalog=employees;Persist Security Info=True;User ID=sa;Password=mips123";
              SqlConnection Connection = new SqlConnection(strConnect);
              string strUpdate = "Update Leave set status = 'Approved' WHERE (LeaveID =" + leaveid + ") AND (EmpID = (Select EmpID from Emp where (Empname='" + empname + "')))";
              SqlCommand command = new SqlCommand(strUpdate, Connection);
              Connection.Open();
              command.ExecuteNonQuery();
              Connection.Close();
              Getuser1();

          }
          catch (Exception exc)
          {

          }

      }
   }

   if (!isAnythingChecked)
   {
      Label2.Text = "Please select atlease one record";
   }

Note:-
       how to avoid page postback on button click ,please help me friends

推荐答案

protected void Page_Load(object sender, EventArgs e)
{

if (!IsPostBack)
{
//First time page load
}
else
{
// subsequent page load
}

希望有所帮助

Milind

Hope that helps
Milind

这篇关于页面按钮点击后回发的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！