[RESOLVED] Saving data in a xml file.

[steve_rm]

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 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);

}

}

[petevick]

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

[steve_rm]

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

[petevick]

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