Database Value in TextBox if Selected in ListBox in Windows Forms

Here I will explain putting database values into TextBoxes for a selected value in a list box. Before that I explain how to link a listbox with a database.

Step 1: Form

Drag and drop a listbox from the toolbox.

Step 2: Code

Click on the list box and write this code:

private void listBox1.SelectedIndexChanged(object sender , EventArgs e)

{

string str = "server = MUNESH\\SQL2008R2;Database=datastore;UID=sa;Password=123;";

SqlConnection con = new SqlConnection(str);

string query = "select * from tablename where name = '"+listBox1.text+"' ";

SqlCommand cmd = new SqlCommand( query,con);

sqldatareader dbr;

try

{

con.open();

dbr = cmd.executereader();

while(dbr.read())

{

string sID = (string) dbr["ID"].tostring;

string sname = (string) dbr["name"] // name is string value

string ssurname = (string) dbr["surname"]

string sage = (string) dbr["age"].tostring;

textbox1.text = sid;

textbox2.text = sname;

textbox3.text = ssurname ;

textbox4.text = sage;

}

}

catch(Execption es)

{

messagebox.show(es.message);

}

}

Step 3: Output

Run your application.

You can also go to my blog_munesh .