Populate textbox based on combobox selection from mysql

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Okay so i have a combo box which is being filled with Names from a MySql table,

here is the code I'm using for that

private void cbox()
   {
       myConnection.GetConnection();
       MySqlDataAdapter sqlgender = new MySqlDataAdapter("Select * from users", myConnection.GetConnection());
       DataTable dtgen = new DataTable("users");
       sqlgender.Fill(dtgen);
       cbxnames.DataSource = dtgen;
       cbxnames.ValueMember = dtgen.Columns[0].ColumnName;
       cbxnames.DisplayMember = dtgen.Columns[1].ColumnName;

   }

the table looks like this

ID NAME GROUP BLAH BLAH BLAH
1 name admin blah blah blah

What I'm trying to do, is based of the combo-box selection populate a few text-boxes with the rest of the table data for that persons id or name
i have no clue how to go about doing this, I've been looking for the last while so any help would be appreciated

Posted 26-Oct-10 19:22pm

Tunacha

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Mohd Wasif 27-Oct-10 1:25am

Elaborate ur question to be answer.

Toli Cuturicu 27-Oct-10 9:45am

Why do all the last 3 columns contain the same data (blah)?

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Sandeep Mewara · Answer 1 · 2010-10-26T19:34:00

Solution 1

First of all while populating your combobox, don't do a "Select * From...". Instead be specific and do "Select ID, Name From..."

Now, based on combobox selection you can always get what ID is selected. Pass that ID to your database and create a Select query Select * From ABC Where ID =@ID

Get back the data from this select query. It should be a single row with all the needed data. Map it to textbox or other controls to display it.

Try!

Posted 26-Oct-10 19:34pm

Sandeep Mewara

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Tunacha 27-Oct-10 2:25am

Okay well this is what i have tried so far

<pre> private void cbxnames_SelectedIndexChanged(object sender, EventArgs e)
{
string id;
id = cbxnames.ValueMember;
myConnection.GetConnection();
MySqlCommand txtfill = new MySqlCommand("SELECT * FROM users WHERE ID = '"+id+"'", myConnection.GetConnection());
txtfill.ExecuteNonQuery();
MySqlDataReader myReader = txtfill.ExecuteReader();
while (myReader.Read() != false)
{
string name = myReader.GetString("name").ToString();
uname.Text = name;
}

</pre>

But im having no luck with this, could anyone help

Sandeep Mewara 27-Oct-10 2:50am

What do you mean by doing first ExecuteNonQuery and then ExecuteReader?

Have a look at how ADO.NET works: http://msdn.microsoft.com/en-us/library/e80y5yhx(VS.71).aspx

Sandeep Mewara 27-Oct-10 2:51am

Learn about ADO.NET first... your code has lots of issues.