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I want to create a form in which i have to fill two value in two different textbox... i wantt the multiplication of the textbox value in other textbox.. i tried but didnt get... can you please help me and i want to save the textbox value in databse.. thanks in advance
Posted
Updated 13-Apr-22 2:55am
Comments
krishnamittal 2-Jan-13 11:42am    
TextBox3.Text=(Convert.ToInt32(TextBox1.Text)*Convert.ToInt32(TextBox2.Text);

This code is error generate.

plz how to multiply value of two textboxes into the third text box

VB
Private Sub textbox1_EditValueChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles textbox1.EditValueChanged
        If textbox1.Text <> "" Then
textbox3.text=cint(textbox1.text)*1
        End If
    End Sub
Private Sub textbox2_EditValueChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles textbox2.EditValueChanged
        If textbox2.Text <> "" and textbox2.Text <> ""  Then
textbox3.text=cint(textbox1.text)*cint(textbox2.text)
        End If
    End Sub
 
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dim mul as int64
MUL=CONVERT.TOINT64(textbox1.text)* convert.toint64(textbox2.text)
textbox3.text=convert.tostring(mul)
 
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JavaScript Solution is as follows:
JavaScript
function multiply()
{
   
   var textValue1 = document.getElementById('TextBox1').value;
   var textValue2 = document.getElementById('TextBox2').value;

   document.getElementById('TextBox3').value = textValue1 * textValue2;

}
 
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v2
Comments
Shrikesh_kale 8-Jul-15 0:40am    
how to call on text change
if you want to diplay this value u can write like this.
C#
TextBox3.Text=(Convert.ToInt32(TextBox1.Text)*Convert.ToInt32(TextBox2.Text);


or if u want use this textbox3 value for again calculation purpose means again u need to convert this texbox3 value

like
C#
convert.Toint32(TextBox3.text)
 
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v2
Firstly you need to type cast values of both text boxes into integer.

C#
Example: TextBox3.Text=Convert.ToString(Convert.ToInt32(TextBox1.Text)*Convert.ToInt32(TextBox2.Text));
 
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v3
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace salarycount
{
public partial class salarycount : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{

}



protected void txtmday_TextChanged(object sender, EventArgs e)
{
if ((!string.IsNullOrEmpty(txtsalary.Text)) && (!string.IsNullOrEmpty(txtmday.Text)) && (!string.IsNullOrEmpty(txtpday.Text)))
{
txtaday.Text = ( Convert.ToInt32(txtmday.Text) - Convert.ToInt32(txtpday.Text)).ToString();
txtnsalary.Text = (Convert.ToInt32(txtsalary.Text) / Convert.ToInt32(txtmday.Text) * Convert.ToInt32(txtpday.Text)).ToString();
}
}

protected void txtpday_TextChanged(object sender, EventArgs e)
{
if ((!string.IsNullOrEmpty(txtsalary.Text)) && (!string.IsNullOrEmpty(txtmday.Text)) && (!string.IsNullOrEmpty(txtpday.Text)))
{
txtaday.Text = (Convert.ToInt32(txtmday.Text) - Convert.ToInt32(txtpday.Text)).ToString();
txtnsalary.Text = (Convert.ToInt32(txtsalary.Text) / Convert.ToInt32(txtmday.Text) * Convert.ToInt32(txtpday.Text)).ToString();
}
}

protected void txtsalary_TextChanged(object sender, EventArgs e)
{
if ((!string.IsNullOrEmpty(txtsalary.Text)) && (!string.IsNullOrEmpty(txtmday.Text)) && (!string.IsNullOrEmpty(txtpday.Text)))
{
txtnsalary.Text = (Convert.ToInt32(txtsalary.Text) / Convert.ToInt32(txtmday.Text) * Convert.ToInt32(txtpday.Text)).ToString();
}
}
}
}
 
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Comments
CHill60 13-Apr-22 11:21am    
An uncommented, unformatted code dump is not a solution. What if your text boxes had something other than numbers in them (or were blank, as some of them will be) - you will get errors galore. Plus you are repeating code - abstract that out into a function! I'm afraid this is a very poor solution

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