datagrid keypress handler

datagrid keypress handler

• bird.tw

  I think I solved the problem,

  
  

• bo_dong

  Hi,

  You dont need to those two exact same method to process the events.

  Try to code more elegantly such as

  int i = currentTransactionsDataGridView.CurrentCell.ColumnIndex;

  if ( i == 0 || i == 4)
              {
                  e.Control.KeyPress += new KeyPressEventHandler(this.Numeric_KeyPress);
              }

  or

  switch (currentTransactionsDataGridView.CurrentCell.ColumnIndex)
              {
                  case 0:
                  case 4: e.Control.KeyPress += new KeyPressEventHandler(this.Numeric_KeyPress);
                      break;
                  default: break;
              }

  Thanks

  
  
  

• kkennedy1008

  Hi,

  You meant it affected all the columns

  As far as the code you displayed which I've tried, and it works normally (only affect first column)

  Please check what else you've done with the datagridview.

  Thank you

  
  
  

• Mark Benningfield

  Yes, it affected every column, as soon as you change column 1 or column 4 then all columns will only accept numerics.

  Do I need to remove the handler for columns other than 1 or 4

  here is the actual test code:

  public partial class MyTest : Form

  {

  public MyTest()

  {

  InitializeComponent();

  }

  #region Handlers

  void Numeric_KeyPress(object sender, KeyPressEventArgs e)

  {

  string str = "\b0123456789";

  e.Handled = !(str.Contains(e.KeyChar.ToString()));

  }

  void Amount_KeyPress(object sender, KeyPressEventArgs e)

  {

  string str = "\b0123456789.";

  e.Handled = !(str.Contains(e.KeyChar.ToString()));

  }

  #endregion Handlers

  private void MyTest_Load(object sender, EventArgs e)

  {

  // TODO: This line of code loads data into the '_2000GLDataSet.CurrentTransactions' table. You can move, or remove it, as needed.

  this.currentTransactionsTableAdapter.Fill(this._2000GLDataSet.CurrentTransactions);

  }

  private void currentTransactionsDataGridView_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)

  {

  if ((this.currentTransactionsDataGridView .CurrentCell.ColumnIndex) == 1)

  e.Control.KeyPress += new KeyPressEventHandler(this.Numeric_KeyPress);

  if ((this.currentTransactionsDataGridView.CurrentCell.ColumnIndex) == 4)

  e.Control.KeyPress += new KeyPressEventHandler(this.Amount_KeyPress);

  }

  }

  
  

• McKears

  Thanks for the pointer Fegi - but it doesnot solve the problem of this happening to all columns.

  
  
• datagrid keypress handler