How Can I Input Only Numeric Value To A Textbox In Datagridview

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i want to accept only numeric value to a textbox in datagridview. i used following code insert textbox in gridview
DataGridViewTextBoxColumn txt = new DataGridViewTextBoxColumn();
dataGridView1.Columns.Add(txt);
txt.HeaderText = "MARKS";
can anyone help me?

Posted 14-Feb-14 1:28am

Ahmed Tamseer

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BillWoodruff 15-Feb-14 0:47am

The code here may be useful to you:

http://www.codeproject.com/Answers/727547/Press-Enter-Key-Code-in-Csharp-2

4 solutions

Solution 1

before the second line add a line of KeyPress event where use this

if(char.IsDigit(e.KeyChar))
{ 
    e.handle=false;
}
else
{
    e.handle=true;
}

Posted 14-Feb-14 1:32am

agent_kruger

Comments

agent_kruger 14-Feb-14 7:32am

it's just like in the case of textbox

Ahmed Tamseer 14-Feb-14 8:46am

it's not working

Ahmed Tamseer 15-Feb-14 2:08am

how to write keypress event to a textbox in a griedview.?

Solution 2

Why dont you use script?It's simple by using script..
Here is the sample try for it...

XML

<script type="text/javascript" language=javascript>
function CheckNumeric()
{
var key;
if(navigator.appName == 'Microsoft Internet Explorer')
key = event.keyCode;
else
key = event.which
if ( !(key >= 48 && key <= 57) && key != 8 && key != 46 && key != 36 && key != 37)
{
event.returnValue = false;
}
}
</script>

XML

[code]
//Other Gridview code
...
...
<itemtemplate>
<asp:TextBox id="txtPhone" text='<% # eval("Phone") %>' runat="server" onkeypress="CheckNumeric()"></asp:TextBox>
</itemtemplate>
[/code]

I hope now you are clear about the JavaScript validation on TextBox inside the Gridview

Posted 14-Feb-14 22:46pm

Appdev(Icode)

Updated 14-Feb-14 22:47pm

v2

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Ahmed Tamseer · Accepted Answer · 2014-02-14T23:21:00

i find out the answer...
thank you for your suggestion

C#

if (dataGridView1[2, i].Value != null)
                   {
                       string s = dataGridView1[2, i].Value.ToString();
                       int l1 = s.Length;
                       for (int j = 0; j < l1; j++)
                       {
                           if (!(char.IsDigit(s[j])))
                           {
                               enter = 1;
                               MessageBox.Show("Enter numric value", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                               break;
                           }
                       }

Ahmed Tamseer · Accepted Answer · 2014-02-14T23:49:00

C#

private void dataGridView1_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)
      {
          try
          {
              e.Control.KeyPress +=
    new KeyPressEventHandler(Control_KeyPress);
          }
          catch (Exception cx)
          {
              MessageBox.Show(cx.Message);
          }
      }
      private void Control_KeyPress(object sender, KeyPressEventArgs e)
      {

          if (!char.IsControl(e.KeyChar)
   && !char.IsDigit(e.KeyChar)
   && e.KeyChar != '.')
          {
              e.Handled = true;
          }

          // only allow one decimal point
          if (e.KeyChar == '.'
              && (sender as TextBox).Text.IndexOf('.') > -1)
          {
              e.Handled = true;
          }
      }

How Can I Input Only Numeric Value To A Textbox In Datagridview

4 solutions

Solution 1

Solution 2

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