show text after the slash in messagebox

check this http://www.dotnetperls.com/messagebox-show[^]

Try this:

string s =textbox.text;
string[] words = s.Split('/');

MessageBox.Show(words[1]);

hope it helps :)

try this

string str = TextBox1.Text;
str = str.Substring(str.LastIndexOf("/") + 1, str.Length - Convert.ToInt32(str.LastIndexOf("/") + 1));
MessageBox.Show(str);

try this

string str = "Code/10023";
        string[] StrIn = str.Split('/');
        Response.Write("First String: "+StrIn[0].ToString() + "</br>");
        Response.Write("Second String: "+StrIn[1].ToString()  + "</br>");
        Response.Write("No of Letters: "+StrIn[1].Length);

This is the solution to your problem

protected void Button1_Click(object sender, EventArgs e)
{
string val = TextBox1.Text.Trim();
string strVal = val.Substring(val.LastIndexOf("/"));
string finalVal=strVal.Remove(0, 1);
ScriptManager.RegisterClientScriptBlock(Page, Page.GetType(), Guid.NewGuid().ToString(), "alert('" + finalVal + "');", true);
}