how to get two text box sum in third text box without button click?

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hi in my project am using three text boxes one is txtPurchase ,txtSales and txtProfit
when i enter in txtpurchase 5000 and txtsale 6000 so i want to display value in txtprofit 1000 without button click.can anyone suggest me how to do ?

thanks

Posted 16-May-12 0:19am

ythisbug

Updated 4-Aug-18 16:18pm

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6 solutions

Solution 2

C#

txtPurchase.Text="5000";
txtSales.Text="6000";

Now Genrate TxtSales Selection Changed Event(double click on textbox in design page to genrate event)
and

Write Code in That Event.

C#

protected void txtSales_TextChanged(object sender, EventArgs e)
    {
tProfit.Text=Convert.ToString(Convert.ToInt32(txtPurchase.Text)+Convert.ToInt32(txtSales.Text));
     }

Posted 16-May-12 0:23am

sunandandutt

Updated 16-May-12 11:03am

v3

Comments

ythisbug 16-May-12 6:50am

thanks for ur reply

Member 12938297 20-Jan-17 6:15am

plz.. send same method for textboxes used in gridview.

Solution 1

You can use onTextchanged event of textbox to write the code of adding the values.

Posted 16-May-12 0:22am

deeptibansal

Comments

ythisbug 16-May-12 6:50am

thanks

Solution 5

ASP.NET

<asp:textbox runat="server" id="txtOne" autopostback="true" ontextchanged="txt_TextChanged" xmlns:asp="#unknown" />
<asp:textbox runat="server" id="txtTwo" autopostback="true" ontextchanged="txt_TextChanged" xmlns:asp="#unknown" />
<asp:textbox runat="server" id="txtThree" xmlns:asp="#unknown" />

C#

protected void txt_TextChanged(object sender, EventArgs e)
{
   decimal valueOne = string.IsNullOrEmpty(txtOne.Text) ? 0 : Convert.ToDecimal(txtOne.Text);
   decimal valueTwo = string.IsNullOrEmpty(txtTwo.Text) ? 0 : Convert.ToDecimal(txtTwo.Text);

   txtThree.Text = (valueOne + valueTwo).ToString("N2");
}

Posted 16-May-12 0:49am

mitnick56

Solution 4

txt_Purchase.Text="5000";
txt_Sales.Text="6000";

Now Genrate Txt_Sales textChanged Event(double click on Txt_Sales in design page to genrate event)
and

Write Code in Txt_Sales textChanged Event.
protected void txt_Sales_TextChanged(object sender, EventArgs e)
{
txt_Profit.Text=Convert.ToString(Convert.ToInt32(txt_Purchase.Text)+Convert.ToInt32(txt_Sales.Text));
}

Posted 16-May-12 0:46am

sonusharma65

Solution 9

protected void Button1_Click(object sender, EventArgs e)
   {

       TextBox5.Text = (Convert.ToInt64(TextBox3.Text) * Convert.ToInt64(TextBox2.Text) + Convert.ToInt64(TextBox4.Text)).ToString();
       TextBox5.Visible = true;
       Label1.Visible = true;
   }

BY-Arpit Upadhyay Airoli
Please Comment If You Have Question

Posted 4-Aug-18 16:12pm

Member 13938107

Updated 4-Aug-18 16:13pm

v2

Comments

Dave Kreskowiak 4-Aug-18 23:03pm

Asked and answered multiple times, SIX YEARS AGO.

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This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Code 89 · Accepted Answer · 2012-05-16T00:28:00

Try this....

<div>
        <asp:textbox id="txt1" runat="server" autopostback="true" xmlns:asp="#unknown">
            ontextchanged="txt1_TextChanged"></asp:textbox>
        <asp:textbox id="txt2" runat="server" autopostback="true" xmlns:asp="#unknown">
            ontextchanged="txt2_TextChanged"></asp:textbox>
        <asp:textbox id="txt3" runat="server" autopostback="true" readonly="true" xmlns:asp="#unknown"></asp:textbox>
    </div>

protected void txt1_TextChanged(object sender, EventArgs e)
    {
        if((!string.IsNullOrEmpty(txt1.Text)) && (!string.IsNullOrEmpty(txt2.Text)))
        {
            txt3.Text = (Convert.ToInt32(txt1.Text) + Convert.ToInt32(txt2.Text)).ToString();
        }
    }
    protected void txt2_TextChanged(object sender, EventArgs e)
    {
        if ((!string.IsNullOrEmpty(txt1.Text)) && (!string.IsNullOrEmpty(txt2.Text)))
        {
            txt3.Text = (Convert.ToInt32(txt1.Text) + Convert.ToInt32(txt2.Text)).ToString();
        }
    }

how to get two text box sum in third text box without button click?

6 solutions

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Solution 1

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how to get two text box sum in third text box without button click?

6 solutions

Solution 2

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Solution 1

Solution 5

Solution 4

Solution 9

Add your solution here

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