Comments by Krishnananthan Vijayaretnam (Top 11 by date)

This is my code. I want to move the text. And its not working yet. What's my mistake? Is there any simple way rather than this?Need help.

namespace VDINE_POS_MARQUEE
{
public partial class Form1 : Form
{
static PosExplorer myExplorer;
static LineDisplay myDisplay;
static DeviceInfo device1;

private static readonly string displaySpace = " ";
private static readonly int displayLineWidth = 40;
private static readonly int displayLineShowableWidth = 20;

private static string line1String, line2String;
private static string line1StringDisplay, line2StringDisplay;
private static int line1DisplayStartIndex, line2DisplayStartIndex;

public Form1()
{
InitializeComponent();
// Instantiate the timer
timer2.Interval = 1000; //1000ms = 1sec
timer2.Tick += new EventHandler(timer2_Tick);
timer2.Start();
timer2.Enabled = true;
myExplorer = new PosExplorer(this);
device1 = myExplorer.GetDevice("LineDisplay", "POSIFLEX_LINEDISPLAY");
}

private void timer2_Tick(object sender, EventArgs e)
{
try
{
myDisplay = (LineDisplay)myExplorer.CreateInstance(device1);
myDisplay.Open();
myDisplay.Claim(1000);
myDisplay.DeviceEnabled = true;

line1StringDisplay = "Welcome To Tea Club ";

myDisplay.DisplayText(GetDisplayStringSplitByIndex(line1StringDisplay, 19));
////myDisplay.DisplayTextAt(1,1,GetDisplayStringSplitByIndex(line2StringDisplay, 0));
////GetDisplayStringSplitByIndex


if (Form1.line1String.Length > Form1.displayLineShowableWidth)
{
if ((Form1.line1String + Form1.displaySpace).Length < Form1.line1DisplayStartIndex + 1)
{
Form1.line1DisplayStartIndex = 0;
}

Form1.line1StringDisplay = Form1.GetDisplayStringSplitByIndex(Form1.line1String + Form1.displaySpace, Form1.line1DisplayStartIndex++);
}
else
{
Form1.line1StringDisplay = Form1.GetPaddedStringForDisplay(Form1.line1String);
}

if (Form1.line2String.Length > Form1.displayLineShowableWidth)
{
if ((Form1.line2String + Form1.displaySpace).Length < Form1.line2DisplayStartIndex + 1)
{
Form1.line2DisplayStartIndex = 0;
}

Form1.line2StringDisplay = Form1.GetDisplayStringSplitByIndex(Form1.line2String + Form1.displaySpace, Form1.line2DisplayStartIndex++);
}
else
{
Form1.line2StringDisplay = Form1.GetPaddedStringForDisplay(Form1.line2String);
}
myDisplay.Close();
}


catch
{

}

}

private static string GetDisplayStringSplitByIndex(string displayString, int index)
{
return Form1.GetPaddedStringForDisplay(displayString.Substring(index) + displayString.Substring(0, index));
}

private static string GetPaddedStringForDisplay(string displayString)
{
if (displayString.Length > Form1.displayLineWidth)
{
return displayString.Substring(0, Form1.displayLineWidth);
}
else
{
return displayString.PadRight(Form1.displayLineWidth);
}

}
}
}

Yes. I know that. I also searched for the same only two weeks ago. And I found that one person search for that three years ago. I found that after a long search. If someone search for same in near future, this solution will be helpful to them without spending so much time on this. So, I just shared the solution. That's all.

Thanks. I've sort it out. This is how I achieved it. Instead of using the RepeaterItemClick, I've used the ItemCommand...

protected void FoodTypeLeftNavigationRepeater_ItemCommand(object source, RepeaterCommandEventArgs e)
{

if (e.CommandName == WellKnownCommandNames.Edit.ToString())
{
this.selectedFoodTypeNameDisplayLabel.Text = string.Empty;

int foodTypeID = 0;

int.TryParse(e.CommandArgument.ToString(), out foodTypeID);

if (foodTypeID > -1)
{

this.FoodTypeID = foodTypeID;

this.FoodType = ((LinkButton)(e.CommandSource)).Text;
string foodTypeIndex = ((Label)e.Item.Controls[1]).Text;

int foodTypeIndexId = this.FoodTypeIndexID;
if (!string.IsNullOrEmpty(foodTypeIndex))
{
int.TryParse(foodTypeIndex, out foodTypeIndexId);
}

this.FoodTypeIndexID = foodTypeIndexId;

string foodMealType = ((Label)e.Item.Controls[3]).Text;
int foodMealTypeID = 1;

if (!string.IsNullOrEmpty(foodMealType))
{
int.TryParse(foodMealType, out foodMealTypeID);
}

this.FoodMealType = foodMealTypeID;

this.GetMultipleFoodData();

this.foodTypeLeftNavigationRepeater.DataSource = (List<foodtyperesponsedto>)this.FoodTypeList;
this.foodTypeLeftNavigationRepeater.DataBind();

}
}
}

I did it without doing any port conversion. I've used Microsoft.PointOfService library for that.
Anyway thanks for your time.

I understood what he said. Drivers are installed properly. The pole display not showing under "PORTS (COM & LPT)" in Device Manager. It has been detected under "Human Interface Devices". If its showing under PORTS (COM & LPT), there is no problem. I have found that the USB Controller showing the pole display's controller(USB Composite Device)

I want to do a usb to com port mapping for the text box text display. That's all. My pole display model is PD *307U-AI. In most of the websites I referred advices to use an adapter. I have to do without an adapter.

Thanks

Initially I tried to do what you suggest now. But when I plugged the pole display it hasn't detect under "PORTS (COM & LPT)". It has been detected under "Human Interface Devices"

I have to pass whatever text typed inside the text box to the pole display.

http://www.merchantsoft.com/technote/Peripherals_and_Hardware/Pole_Displays/USB_Logic_Controls_POle_Displays_-_Win_7.htm

I followed the above link to configure the pole display. In this link they are suggest something called Virtual Com Port Driver. I've downloaded a driver from the below link,

http://www.ftdichip.com/Drivers/VCP.htm

I installed the driver, after installation it doesn't prompt for anything.
Can anyone suggest me the way to use the Virtual COM Port Driver?

Thanks