Hi .. Is there any ways where we can press enter key to calculate numbers in two textboxes and display in another textbox instead of using a separate Calculate button(for the user to press it to calculate) .
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Yes, if I understand what you're asking, then yes. You need to set the form's KeyPreview property to True in the form_load event handler. And use the Form.KeyPress event or Control.KeyPres s Event.
joedeene -
thank u for the reply.. and can you please temme whr should these be placed and how to edit it so that the dynamic textboxes gets created while enter button is presses (right now its in button1 event.. i want it to happen for enter button press) pls guide me
Code:Imports System.Drawing Partial Public Class WebForm1 Inherits System.Web.UI.Page Dim textdynamic1 As New ArrayList() Dim textdynamic2 As New ArrayList() Dim textdynamic3 As New ArrayList() Dim TxtDyn1 As TextBox() Dim TxtDyn2 As TextBox() Dim TxtDyn3 As TextBox() Public Event KeyPress As WebPartEventHandler Dim numofper As Integer Dim instance As Control Dim handler As WebPartEventHandler AddHandler instance.KeyPress, handler Private nonNumberEntered As Boolean = False ' Handle the KeyDown event to determine the type of character entered into the control. Private Sub textBox1_KeyDown(ByVal sender As Object, ByVal e As System.IO.FileSystemEventArgs) Handles TextBox1.KeyDown ' Initialize the flag to false. nonNumberEntered = False ' Determine whether the keystroke is a number from the top of the keyboard. If e.KeyCode < Keys.D0 OrElse e.KeyCode > Keys.D9 Then ' Determine whether the keystroke is a number from the keypad. If e.KeyCode < Keys.NumPad0 OrElse e.KeyCode > Keys.NumPad9 Then ' Determine whether the keystroke is a backspace. If e.KeyCode <> Keys.Back Then ' A non-numerical keystroke was pressed. ' Set the flag to true and evaluate in KeyPress event. nonNumberEntered = True End If End If End If 'If shift key was pressed, it's not a number. If Control.ModifierKeys = Keys.Shift Then nonNumberEntered = True End If End Sub 'textBox1_KeyDown ' This event occurs after the KeyDown event and can be used ' to prevent characters from entering the control. Private Sub textBox1_KeyPress(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.FormViewPageEventArgs) Handles TextBox1.KeyPress ' Check for the flag being set in the KeyDown event. If nonNumberEntered = True Then ' Stop the character from being entered into the control since it is non-numerical. e.Handled = True End If End Sub 'textBox1_KeyPress Public Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load End Sub Public Sub Button3_Click(ByVal sender As Object, ByVal e As EventArgs) Handles Button3.Click SessionHandler.keynumper = numofper Response.Redirect("thrpage.aspx") End Sub Public Sub Button2_Click(ByVal sender As Object, ByVal e As EventArgs) Handles Button2.Click Response.Redirect("secpage.aspx") End Sub Protected Sub Button1_Click(ByVal sender As Object, ByVal e As EventArgs) Handles Button1.Click If IsPostBack Then Try If Not TextBox1.Text Is String.Empty Then numofper = TextBox1.Text ReDim TxtDyn1(numofper) ReDim TxtDyn2(numofper) ReDim TxtDyn3(numofper) End If 'To create the dynamic text box and add the controls to panel, save them in session state For i As Integer = 0 To numofper - 1 TxtDyn1(i) = New TextBox TxtDyn1(i).EnableViewState = True Panel1.Controls.Add(TxtDyn1(i)) textdynamic1.Add(textdynamic1) TxtDyn1(i).Width = 100 Next For j As Integer = 0 To numofper - 1 TxtDyn2(j) = New TextBox TxtDyn2(j).EnableViewState = True TxtDyn2(j).Width = 60 TxtDyn2(j).Text = j + 1 TxtDyn2(j).ID = "TxtDyn2_" & j Panel2.Controls.Add(TxtDyn2(j)) textdynamic2.Add(textdynamic2) Next For k As Integer = 0 To numofper - 1 TxtDyn3(k) = New TextBox TxtDyn3(k).EnableViewState = True Panel3.Controls.Add(TxtDyn3(k)) textdynamic3.Add(textdynamic3) TxtDyn3(k).Width = 60 Next Catch ex As Exception MsgBox("Enter the Number of Periods") End Try End If End Sub End ClassComment
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Its plastered all over bytes, to please use [code] tags to make everything more readable to those trying to help you. See how much nicer the above is and how it actually looks like the code we are all used to writting/debugging?Originally posted by adarshyam
More on tags. They're cool. Check'em out.
Plz, U, whr, temme need to stay on your cell phone.If you can't be bothered with using real words, or even to capital a sentence then why should someone else be bothered trying to translate your SMS text abreviations? When English is not someone's native language we all make allowances. When someone is too lazy to write a full sentence it looks as if their question has no value to the writer, so it would have even less value to the reader.
please visit the Posting Guidelines
Your original post was asking if it is possible to use the enter key instead of a button click, to perform a calculation of numbers in two text boxes and place the result in the third. Now that has become dynamically creating the boxes and doing all the work.
Joedeene pointed you right to the article on handling keypress. May I suggest you make some efforts at incorporating that into your code before asking someone else to do your work for you? You are not going to find a code snippet already created that exactly matches your need. You need to think through the problem... think through the goal... apply the answer already given you... and work through some trial and error. The code you have provided doesn't have any errors, it just isn't what you wanted. You need to make an effort to turn it into what you wanted. Come back with something that shows your trial and errors, shows where you were close but not quite there and ask for some help understanding that last portion resulting in error messages.Comment
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