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New Message on BDOTNET
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From: ShrinivasInDotNet
Message 3 in Discussion
Hi, I cannot send the project due to large size. But here is the function code. I am
setting the respective table to the datagrid source. This bug happens in following
steps
1) Cursor on datagrid cell
2) any other dialog is pop up on the grid, that dialog invokes file save dialog
3) press esc to file save dialog, this closes it as well as dialog behind
4) Focus on grid again, and code below gets executed where I am setting the datagrid
source = table DT, and try to navigate to the screen
this.dgParameters.NavigateTo(screenNumber-1, "Screen_ParameterRow");
and here crashes, dgParameters datasource has the valid tables, No need to crash.. If
initially cursor is not on grid, then with these steps, no crash..may be crash due to
edit..? System.Data.DataTable DT;
System.Data.DataRow DR; try
{
if(this.sourceData == null)
throw new System.NullReferenceException("sourceData for WinGridParameters is
null."); DT = this.sourceData.Tables["Screen"];
if (DT == null)
throw new System.NullReferenceException("sourceData must contain a Screen
table"); if (DT.Rows.Count < 1)
throw new System.IndexOutOfRangeException("sourceData must have at least one
screen defined in the data set"); // Rows array is zero based.
DR = DT.Rows[screenNumber-1]; if(DR["Caption"] != null)
{
this.dgParameters.CaptionText = DR["Caption"].ToString();
}
this.dataMonitoringController.RemoveUnsupportedParameters();
bool monitorActive = false;
if (dataMonitoringController.MonitoringEnabled == true)
{
dataMonitoringController.MonitoringEnabled = false;
monitorActive = true;
} dataMonitoringController.RemoveAllWatchs();
string keyName;
string units; System.Data.DataRow[] rows =
DT.Rows[screenNumber-1].GetChildRows("Screen_ParameterRow");
foreach(System.Data.DataRow dataRow in rows)
{
try
{
keyName = dataRow["Name"].ToString();
units = dataRow["Unit"].ToString(); if(keyName.Length > 0)
{
dataMonitoringController.AddWatch(keyName, units);
}
else
{ // do nothing, no param name on this line
} keyName = dataRow["Name2"].ToString();
units = dataRow["Unit2"].ToString(); if(keyName.Length > 0)
{
dataMonitoringController.AddWatch(keyName, units);
}
else
{ // do nothing, no param name on this line
}
}
catch( System.Exception e )
{
}
if (monitorActive == true)
{
dataMonitoringController.MonitoringEnabled = true;
}
} this.dgParameters.DataSource = DT;
this.dgParameters.NavigateBack();
this.dgParameters.NavigateTo(screenNumber-1, "Screen_ParameterRow");
this.DefaultGridRows();
}
catch (System.Exception e)
{
//throw e;
MessageBox.Show(e.Message);
}
this.currentScreen = screenNumber; Thanks
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