[RESOLVED] Saving data in a xml file.

Hello,

Using VS 2008 CF 3.5 WM 5.0

I need to save some data. I tried using the resource file. I could read the data, but not sure how to save it. I think that this might be read only.

However, so I tried using a xml file and set the property "Copy to output directory" to "Always Copy".

I have used a ds to read and write the xml file. It writes the data ok, and I have checked this by browsing the xml file on the PDA itself. However, when i re-start the application it always displays blank data.

I am wondering what the problem is?

Second question what is the VS 2008 method of doing this?

Many thanks for any advice,

Steve

Code:

---

Code Snippet//Load server options from the resource file.

//Default options to be loaded on startup.

private void LoadServerOptions()

{

//Resources.resx is READ-ONLY

//this.txtSIP_Proxy.Text = GUI_SIP_Client.Properties.Resources.SIP_Proxy;

//this.txtDNS_Server.Text = GUI_SIP_Client.Properties.Resources.DNS_Server;

//this.txtSTUN_Domain.Text = GUI_SIP_Client.Properties.Resources.STUN_Domain;

//this.txtSTUN_Server.Text = GUI_SIP_Client.Properties.Resources.STUN_Server;

try

{

//Find path of executing assembly where XML file is located

string path = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase);


//Read the xml file into the DS so that the values can be read.

ds.ReadXml(System.IO.Path.Combine(path, "ServerOptions.xml"));

this.txtSIP_Proxy.Text = ds.Tables[0].Rows[0]["SIPServer"].ToString();

this.txtDNS_Server.Text = ds.Tables[0].Rows[0]["DNSServer"].ToString();

this.txtSTUN_Domain.Text = ds.Tables[0].Rows[0]["STUNDomain"].ToString();

this.txtSTUN_Server.Text = ds.Tables[0].Rows[0]["STUNServer"].ToString();

}

catch (System.IO.FileNotFoundException ex)

{

MessageBox.Show(ex.Message);

}

catch (Exception ex)

{

MessageBox.Show(ex.Message);

}

}

//Save the current server settings in the resource file to be

//loaded the next time the application starts up.

private void btnSave_Click(object sender, EventArgs e)

{

try

{

//Write the contents of the server options to the xml file so that they can be saved.

string path = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase);

ds.Tables[0].Rows[0]["SIPServer"]= this.txtSIP_Proxy.Text;

ds.Tables[0].Rows[0]["DNSServer"] = this.txtDNS_Server.Text;

ds.Tables[0].Rows[0]["STUNDomain"] = this.txtSTUN_Domain.Text;

ds.Tables[0].Rows[0]["STUNServer"] = this.txtSTUN_Server.Text;

//Write the new settings to the xml file.

ds.WriteXml(System.IO.Path.Combine(path, "ServerOptions.xml"));

}

catch (System.IO.FileNotFoundException ex)

{

MessageBox.Show(ex.Message);

}

catch (Exception ex)

{

MessageBox.Show(ex.Message);

}

}

---

Hi
if your XML file on your PC is blank, by setting it to "Always Copy" will always send a blank file to the PDA whenever you run your application from VS

Is that the problem?

Pete

Hello Petevick,

I think you will have to set it for 'Always copy' or 'copy if newer'. Otherwise the xml file will never been deployed on the PDA device.

Many thanks,

Steve

Hi,
but is that your problem - are you always replacing the XML file on the PDA with the one from your dev environment? If so, just set it to 'copy if newer'

Pete