ToolTip.Show() displays previous data - C# winforms

Question

Hi,
I am facing a pblm while using ToolTip.Show().
I am working on a windows appl. On the form we hv multiple buttons, we can configure the buttons for some frequencies and that freq. will be shown in the tooltip when we move the mouse over the btn.
In the very first time whn i move my mouse on the btn it shows proper data. but when i reconfigure the btn with diff. data and whn i move the mouse over the btn, it shows the previous data and when i take off the mouse and move again on the btn it
shows proper data.
Here is my tool tip fun..
public void setCardBtnToolTip(string toolTipText)
      CardButtonToolTip.RemoveAll();
      CardButtonToolTip.Show(toolTipText, this, 5000);
Any Suggestions...

Answer 1

This function will be called on Mouse_Hover...
private void ConfigureTooltipAnalogCard(string f_strIpAddr)
ChannelsOnAFrequency l_objConfigTooTip = null;
//StringBuilder l_strTooltip = new StringBuilder();
Globals.g_stringBuilder.Length = 0;
string l_strMonitorChn = string.Empty;
string l_strMeasuringChn = string.Empty;
string l_strCardFrequency = string.Empty;
try
if (dCardButton.ContainsKey(f_strIpAddr) && Globals.d.ContainsKey(f_strIpAddr))
CardButtonControl btnCard = dCardButton[f_strIpAddr];
l_objConfigTooTip = Globals.d[f_strIpAddr];
Globals.g_stringBuilder.Append("IP Address :").Append(f_strIpAddr).Append("\n")
.Append("Card Type :").Append(btnCard.CardButtonText).Append("\n")
.Append("Transmission :").Append(l_objConfigTooTip.m_strSignalTrans).Append("\n");
if (l_objConfigTooTip.m_strRmChFreq.Length > 3 && l_objConfigTooTip.m_strSignalTrans == PARAM.Analog)
int l_freq = Convert.ToInt32(l_objConfigTooTip.m_strRmChFreq);
l_strCardFrequency = Convert.ToString(l_freq / 1000000) + " MHz";
else
l_strCardFrequency = l_objConfigTooTip.m_strRmChFreq + " MHz";
if (l_objConfigTooTip.IsAnyChannelBeingMonitored())
SingleChannelDetails singleChannel = l_objConfigTooTip.GetMonitoringChannel();
if (singleChannel != null)
l_strMonitorChn = singleChannel.m_strChannelName;
l_strMeasuringChn = l_objConfigTooTip.GetMeasuredChannelListAsString();
Globals.g_stringBuilder.Append("Frequency :").Append(l_strCardFrequency).Append("\n")
.Append("Monitoring Channel : ").Append(l_strMonitorChn).Append("\n")
.Append("Fingerprint Extraction : ").Append(l_strMeasuringChn).Append("\n");
//l_strTooltip.Append("Frequency :" + l_strCardFrequency + "\n");
//l_strTooltip.Append("Monitoring Channel : " + l_strMonitorChn + "\n");
//l_strTooltip.Append("Fingerprint Extraction : " + l_strMeasuringChn + "\n");
btnCard.SetCardBtnToolTip(Globals.g_stringBuilder.ToString());
Globals.g_stringBuilder.Length = 0;
catch (Exception ex)
Logger.logmsg(Logger.LOG_EX, "@ConfigureTooltipAnalogCard: " + ex.Message + System.Environment.NewLine + ex.StackTrace + System.Environment.NewLine);