how we can add the two number

Question

sir how we can add the two number if user input the character with digit and truncate the char and take the digit from both input.and print the result after eliminate char from input value

Satyapriya Nayak · Answer

Untitled Page using System; using System.Collections; using System.Configuration; using System.Data; using System.Linq; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.HtmlControls; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Xml.Linq; using System.Text.RegularExpressions; namespace WebApplication18 { public partial class WebForm2 : System.Web.UI.Page { protected void Button1_Click(object sender EventArgs e) { TextBox2.Text = Regex.Replace(TextBox1.Text [^0-9] ); TextBox4.Text = Regex.Replace(TextBox3.Text [^0-9] ); Response.Write(Convert.ToDouble(TextBox2.Text) + Convert.ToDouble(TextBox4.Text)); } protected void Page_Load(object sender EventArgs e) { TextBox2.Visible = false; TextBox4.Visible = false; } } }

Pankaj Rawat · Answer

well you have to use regex class. add a namespace using System.Text.RegularExpressions; and on button click Protected Void BtnAdd_Click(Object senderEventArgs e) { string str1=txtstr1.Text; string str2=txtstr2.Text; int First_Value=Convert.ToInt32(Regex.Replace(str1 [^0-9] )); int Second_Value=Convert.ToInt32(Regex.Replace(str2 [^0-9] )); int Result=First_Value+Second_Value; }