public partial class Form2 : Form
{
DataTable dt = new DataTable();
DataRow dr;
public Form2()
{
InitializeComponent();
dt.Columns.Add("ServerName");
dt.Columns.Add("UserId");
dt.Columns.Add("Password");
dt.Columns.Add("DatabaseName");
}
private void btn_save_Click(object sender, EventArgs e)
{
dt.TableName = "DER";
dr = dt.NewRow();
dr["ServerName"] = tb_serverName.Text.Trim();
dr["UserId"] = tb_userId.Text.Trim();
dr["Password"] = tb_pwd.Text.Trim();
dr["DatabaseName"] = tb_dbName.Text.Trim();
dt.Rows.Add(dr);
dt.WriteXml("D:\\DatabaseInfo.xml");
dt.Clear();
}
private void btn_back_Click(object sender, EventArgs e)
{
dt.ReadXml("D:\\DatabaseInfo.xml");
foreach (DataRow dr in dt.Rows)
{
tb_serverName.Text = dr["ServerName"].ToString();
tb_userId.Text = dr["UserId"].ToString();
tb_pwd.Text = dr["Password"].ToString();
tb_dbName.Text = dr["DatabaseName"].ToString();
}
}
}
After clicking btn_save
data is saved in XML file but, when I'm clicking on btn_back
can't see data in the fields of form. What I have to do properly in btn_back_click
?
Use a DataSet
like this can solve your problem:
private void btn_back_Click(object sender, EventArgs e)
{
string path = "D:\\DatabaseInfo.xml";
var xmlFile = XmlReader.Create(path);
DataSet ds = new DataSet();
ds.ReadXml(xmlFile);
foreach (DataRow dr in ds.Tables[0].Rows)
{
tb_serverName.Text = dr["ServerName"].ToString();
tb_userId.Text = dr["UserId"].ToString();
tb_pwd.Text = dr["Password"].ToString();
tb_dbName.Text = dr["DatabaseName"].ToString();
}
}
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