TypeIntialization Exception Was Unhandled...PLzzz help me...........

• • Reply

  12 years ago

  by FaulstiR

  Ricky

  , United States

  Joined 13 years ago

  Hello,

           Can anyone  plzz solve my  prblm... Below  code is for Immigration_Details of the employee.....

   i got an Exception while running....

  Exception : TypeIntialization Exception was Unhandled...........

  But i didn't change the Form Name in this appln...

  Please help me..........
  

   

  using System;
  using System.Collections.Generic;
  using System.ComponentModel;
  using System.Data;
  using System.Drawing;
  using System.Text;
  using System.Windows.Forms;
  using System.Data.SqlClient;
  using System.IO;
  
  namespace Immigration_Details1
  {
      public partial class Form1 : Form
      {
          public Form1()
          {
              InitializeComponent();
          }
          static SqlConnection cn = new SqlConnection("Provider=SQLOLEDB.1;Integrated Security=SSPI;Persist Security Info=False;Initial Catalog=EMP;Data Source=user");
          DataSet ds = new DataSet();
          SqlDataReader rdr;
          DataTable dt;
          DataRow dr;
          int i;
          private void Form1_Load(object sender, EventArgs e)
          {
              SqlCommand cmd = new SqlCommand("select empid,immigrationstatus,firstname,middilename,lastname from Employee_Details", cn);
              cn.Open();
              rdr = cmd.ExecuteReader();
              if (rdr.Read())
              {
                  empid_txt.Text = rdr["empid"].ToString();
                  immigrationstatus_cmb.Text = rdr["immigrationstatus"].ToString();
                  fname_txt.Text = rdr["firstname"].ToString();
                  mname_txt.Text = rdr["middilename"].ToString();
                  lname_txt.Text = rdr["lastname"].ToString();
              }
  
              if (immigrationstatus_cmb.SelectedIndex == 0)
              {
                  immg_groupBox1.Visible = true;
                  Nonimmg_groupBox2.Visible = false;
                  Immg_VisaDetails();
              }
              if (immigrationstatus_cmb.SelectedIndex == 1)
              {
                  Nonimmg_groupBox2.Visible = true;
                  immg_groupBox1.Visible = false;
                  NonImmg_VisaDetails();
              }
          }
  
          private void Immg_VisaDetails()
          {
              string q = "select receiptnumber,dateapplied,dateapproved from Immigrant_Details where greencarddetails='" + greencarddetails_cmb.SelectedIndex.ToString() + "'";
              SqlCommand cmnd = new SqlCommand(q, cn);
              SqlDataReader Rdr;
              cn.Open();
              Rdr = cmnd.ExecuteReader();
              while (Rdr.Read())
              {
                  receiptnumber_txt.Text = Rdr["receiptnumber"].ToString();
                  dateapplied_txt.Text = Rdr["dateapplied"].ToString();
                  dateapproved_txt.Text = Rdr["dateapproved"].ToString();
              }
          }
  
          private void NonImmg_VisaDetails()
          {
              SqlDataAdapter Sda = new SqlDataAdapter("select * from NonImmigrant_Details", cn);
              Sda.Fill(ds, "NonImmigration_Details");
              dt = ds.Tables["NonImmigration_Details"];
              dr = dt.Rows[i];
              visatype_cmb.Text = dr[0].ToString();
              visastartdate_txt.Text = dr[1].ToString();
              visaexpirationdate_txt.Text = dr[2].ToString();
          }
  
      }
  }

   

  Advance thnx 
  

   

   

   

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• • Reply

  12 years ago

  by kikhan_21

  Kashif Iqbal Khan

  Karachi, Pakistan

  Joined 15 years ago

  Can you put the exception StackTrace here? In IDE you can also examine the InnerException property in the Locals window 

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• • Reply

  12 years ago

  by FaulstiR

  Ricky

  , United States

  Joined 13 years ago

  Hi,

     What is exception StackTrace ??? , i tried it by checking the InnerException Property Window but i didn't get it....

  I got this Error in Program.CS

  using System;
  using System.Collections.Generic;
  using System.Windows.Forms;
  
  namespace Immigration_Details1
  {
      static class Program
      {
          /// <summary>
          /// The main entry point for the application.
          /// </summary>
          [STAThread]
          static void Main()
          {
              Application.EnableVisualStyles();
              Application.SetCompatibleTextRenderingDefault(false);
              Application.Run(new Form1()); ------>>> Exception Occured Here
          }
      }
  }
   

  please help me..........

   

  Thnqqqqq 

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• • Reply

  12 years ago

  by sbmichele

  mick

  , Italy

  Joined 13 years ago

  Hi,

  In NonImmg_VisaDetails()----method , you are trying to assign the the table from dataset i.e

  dt = ds.Tables["NonImmigration_Details"];

  I think this is the line of code which was throwing exception

  try  doing below:

  dt = new DataTable();

  dt = ds.Tables["NonImmigration_Details"];

  Also Initialize the datarow before using...

   

  Thanks, 

   

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