Wirting an empty XML file

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Ive managed to fix the previous code but now its writing and empty XML file with an empty dataset, any reason why? thanks :) x

C#

private void databasexml_Click(object sender, EventArgs e)
     {



         string sql = "SELECT * FROM BookDetails";
         DataSet ds = new DataSet();
         BindingSource bs = new BindingSource();
         SqlDataAdapter sda = new SqlDataAdapter(sql, stringConnection);


         try
         {

         ds.WriteXml("C:\\Users\\Louise Tooze\\Desktop\\XMLFile2.xml");
         dataGridView1.DataMember = "";
         sda.Fill(ds);


         dataGridView1.DataSource = ds.Tables[0];
         dataGridView1.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
         dataGridView1.Update();
         sda.Update(ds);

         sda.Dispose();

         MessageBox.Show("XML File created Successfully");
         }

         catch (Exception ex)
         {
             MessageBox.Show(ex.Message);
         }

     }

Posted 15-May-12 8:06am

Tooze

Updated 15-May-12 8:10am

Wes Aday

v2

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Maciej Los 15-May-12 14:09pm

Do not repost! Please, remove this question.

2 solutions

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Dr.Walt Fair, PE · Answer 1 · 2012-05-15T08:30:00

Solution 1

You are creating a new DataSet ds, then using WriteXml before there is anything in it. Try filling it first, then writing it.

Posted 15-May-12 8:30am

Dr.Walt Fair, PE

Sandeep Mewara · Answer 2 · 2012-05-15T08:31:00

Solution 2

Change your code to:

C#

try
{
    .   
    .
    .
   
    // data filled in dataset
    sda.Fill(ds);
     
    // This line will be after you populate the dataset with data
    ds.WriteXml("C:\\Users\\Louise Tooze\\Desktop\\XMLFile2.xml");
    .
    .
    .
    .
    .
}

Posted 15-May-12 8:31am

Sandeep Mewara

Comments

VJ Reddy 15-May-12 20:57pm

Good answer. 5!

Sandeep Mewara 16-May-12 1:19am

Thanks.