how to add text in the beginning of multiline textbox

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Hi every one

I'm beginner in asp.net(C#) and my question is that i need to add text like "ABC" to the beginning of more than one text in multiline textbox, for example i have this :
aaaa
bbbb
cccc
ddd
mmmm
and i wont it to be like this :
ABCaaaa
ABCbbbb
ABCcccc
ABCddd
ABCmmmm
by pressing on a button which it's value is "add ABC",
i had already searched in Google but with no result unfortunately.
i will be thankful for any help.

Best Regards
Ahmed

Posted 7-Dec-11 0:40am

Ahmed k dema

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2 solutions

Solution 3

You can try simple like below

C#

string prevdata = "";
        private void button1_Click(object sender, EventArgs e)
        {
            prevdata = txtmulti.Text;
            txtmulti.Text = "";
            txtmulti.AppendText(textBox2.Text);
            txtmulti.AppendText(prevdata);
        }

visit
http://developers.eventsitsolution.com/[^]

for more info

VB

Regards
Amar

Posted 7-Dec-11 1:40am

AmarjeetRout

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sucram · Accepted Answer · 2011-12-07T01:30:00

Here are 2 ways to accomplish this: Method 1 is the safer option

1.

C#

protected void Button1_Click(object sender, EventArgs e)
{
            string a = TextBox1.Text;

            string[] b = a.Split(new string[] {  System.Environment.NewLine }, StringSplitOptions.RemoveEmptyEntries);
            StringBuilder sb = new StringBuilder();
            foreach (string ss in b)
            {
                sb.Append("ABC");
                sb.Append(ss);
                sb.Append(System.Environment.NewLine);
            }


            TextBox1.Text = sb.ToString();
}

2.

C#

protected void Button1_Click(object sender, EventArgs e)
{
            string a = TextBox1.Text;

            string[] b = a.Split(new string[] {  System.Environment.NewLine }, StringSplitOptions.RemoveEmptyEntries);
            TextBox1.Text = string.Empty;
            foreach (string ss in b)
            {
                TextBox1.Text += ("ABC" + ss + System.Environment.NewLine);
                
            }


            
}