Find and show an item in listbox

Question

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hi all
question is i want to user put name of the item in serch textbox and then click on search button and when that item finded show tell number of that name in an other textbox here is my code

C#

private void btAdd_Click(object sender, EventArgs e)
{
    tbTell.Text = tbTell.Text.ToString();

    tbName.Text += " | " + tbFamily.Text;
    listnames.Items.Add(tbName.Text+" | "+tbTell.Text);
    string number = tbTell.Text;
    tbName.Text = "";
    tbName.Focus();
}
private void btnSerch_Click(object sender, EventArgs e)
{

    listnames.FindString(tbSerch.Text);


}

but this code is not working for search
but working for add a name with last name and phone number in 1 item in the list

What I have tried:

i tried to use find string function
tried to write a function for myself
but nothing worked yet

Posted 23-Feb-17 3:45am

Member 13019612

Updated 23-Feb-17 5:57am

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Comments

[no name] 23-Feb-17 9:55am

Of course it "doesn't work", You aren't doing anything with the result of your search.

2 solutions

Solution 1

According to ListBox.FindString Method (String) (System.Windows.Forms)[^]:

Quote:
Finds the first item in the ListBox that starts with the specified string.

Your ListBox looks like this:

C#

listnames.Items.Add(tbName.Text+" | "+tbTell.Text);

And you are doing nothing with your search results:

C#

listnames.FindString(tbSerch.Text);

Here is a Google Search with examples of how to do what you want: winform listbox text search[^]

Posted 23-Feb-17 3:55am

Graeme_Grant

Updated 23-Feb-17 4:00am

v3

Comments

Member 13019612 23-Feb-17 9:57am

can u tell me how to do it specifically?

Graeme_Grant 23-Feb-17 10:00am

Have a look at the link that I provided.

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Karthik_Mahalingam · Accepted Answer · 2017-02-23T05:57:00

Solution 2

try this, corrected code and custom search.

private void btAdd_Click(object sender, EventArgs e)
       {
           string nameFamily = tbName.Text + " | " + tbFamily.Text;
           listnames.Items.Add(nameFamily + " | " + tbTell.Text);
       }

       private void btnSerch_Click(object sender, EventArgs e)
       {
           bool isExactNameSearch = true;
           string search  = tbSerch.Text.Trim();
           foreach (string item in listnames.Items)
           {
               var parts = item.Split('|');
               string name = parts[0].Trim();
               string number = parts[2];
               if (isExactNameSearch)
               {

                   if (name == search) // checks exact name
                   {
                       MessageBox.Show(number);
                       break;
                   }

               }
               else {
                   // contains search
                   if (name.Contains(search)) // checks exact name
                   {
                       MessageBox.Show(number);
                       break;
                   }

               }
           }


       }

Posted 23-Feb-17 5:57am

Karthik_Mahalingam

Comments

Member 13019612 23-Feb-17 12:06pm

its nice work bro
thanks a lot
u helped me so many :)
<3
but can i ask u something ?
i want to if its possible
when user write a part of name or family then search and show the number!
i mean when add in list like this :
john|winson|123-313-54|
and when user write in serch textbox like this : winson
then shown the 123-313-54 to the user!
but if its not possible then its not important matter

Karthik_Mahalingam 23-Feb-17 12:08pm

welcome :)

Member 13019612 23-Feb-17 12:14pm

please ask my second question :D
I'm sorry if i tired you
but i dont want to open an other topic for this

Karthik_Mahalingam 23-Feb-17 12:19pm

yes it is possible just add one more condition to it.

Member 13019612 23-Feb-17 12:26pm

how ? :(

Karthik_Mahalingam 23-Feb-17 12:30pm

try to understand the code using debugger/break point.. you should learn to customise the code by yourself



 private void btnSerch_Click(object sender, EventArgs e)
        {
            bool isExactNameSearch = true;
            string search  = tbSerch.Text.Trim();
            foreach (string item in listnames.Items)
            {
                var parts = item.Split('|');
                string name = parts[0].Trim();
                 string family = parts[1].Trim();
                string number = parts[2];
                if (isExactNameSearch)
                {

                    if (name == search || family == search) // checks exact name
                    {
                        MessageBox.Show(number);
                        break;
                    }

                }
                else { 
                    // contains search
                    if (name.Contains(search) || family.Contains(search)) // checks exact name
                    {
                        MessageBox.Show(number);
                        break;
                    }

                }
            }


        }

Member 13019612 23-Feb-17 12:32pm

yeah sure thanks for your time

Karthik_Mahalingam 23-Feb-17 12:33pm

welcome