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.
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