| DataTable.AddRange Slow (VIP replies) |
| microsoft.public.dotnet.languages.csharp |
| I'm finding that the AddRange call in the following code takes several seconds to execute (approx. 4 seconds). DataColumn[] adcCols new DataColumn[3000]; for (int i 0; i adcCols.Length; i ) { adcCols[i] new DataColumn(); } myDataTable.Columns.AddRange(adcCols); Is there some way for me to speed this up? I tried using myDataTable.BeginLoadData and EndLoadData but it didn't help any. The end goal is... |
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| DataTable.Select(...) CRASHES (VIP replies) |
| microsoft.public.dotnet.framework.adonet |
| Hello, DataTable.Select( sFilter ) crashes with "Index was outside the bounds of the array" exception when: 1. parent table has more columns than child one 2. filter expression apllied to child table addresses to parent column which has higher order number than columns count in child table. Repro code snippet: DataSet ds new DataSet(); DataTable dtMain ds.Tables.Add("MAIN TBL"); DataTable dtChild ... |
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| DataView (VIP replies) |
| microsoft.public.dotnet.languages.csharp |
| Hello All, I'm trying to use a DataView and in the rowfilter, base it on two fields in the table. I can't find any examples on this. Is there a way to do it. I'm talking about something like... DataView dv new DataView(myTable, "field1 like '" buffer "*' and field2 true", "field1", DataViewRowState.CurrentRows); The above doesn't seem to work. I'm not sure if I'm supposed to use the "and" in it...... |
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| DataView confusion (VIP replies) |
| microsoft.public.dotnet.languages.vb |
| I have a form with a dataset and a datagrid. I created a dataview on this dataset. When the user modifies the datagrid, I look up this record in the dataview to make sure it is unique. Here is the confusion......... I thought that the DataView is the view from the dataset, but it seems that the dataview has the records that are in the datagrid, because everytime I search for a record that I know i... |
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| DataView loop and edit? (VIP replies) |
| microsoft.public.dotnet.languages.vb |
| Dear friends Dim myDataView as DataView New DataView(dsData.Tables("tblCustomers")) myDataView.RowFilter "City 'London'" My question is how to loop through all rows in myDataView and edit the field fldZipCode so fldZipCode "9800" Regards Able |
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| DataView.Sort Dilemma - A bit long (VIP replies) |
| microsoft.public.dotnet.framework.adonet |
| I have a dataset contining sorted data in mutilple tables from which I am selecting rows to action. I use the Find method of the DefaultView from a specific Table to get the position of a row in the table. I then set the position of the BindingContext to action the row. eg. Table.DatafaultView.Sort "ColumnName" pos Table.DatafaultView.Find(key) BindingContext(DataSet,Table).Position pos This works... |
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| date and timer on a form (VIP replies) |
| microsoft.public.dotnet.languages.vb |
| hi, I'm new to vb.net . I have a problem waking up early. I usually miss my morning classes. I downloaded some alarm clocks of the internet but most of them are huge and have extra functionalities. so I decided to make my own alarm clock. i created my project and made the form. I could display the time on a textfield but I dont know how to make it increment like a clock does. would anyone plz star... |
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| date Problem (VIP replies) |
| microsoft.public.dotnet.languages.vb.data |
| I have a form that reads and writes to a access database. One on the textboxes accepts a date field from the access database. the format is date/time... I need only date and cant figure it out... Any help would be appreciated Steve |
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| date-format in mobile calendar control ? (VIP replies) |
| microsoft.public.dotnet.framework.aspnet.mobile |
| Hi there, I have a calendar control on a mobile page (phone). Since the phone can't display the control it shows different pages and manners to select a date (pretty cool). However, all my dates are showed in mm dd yyyy format, where it should be dd mm yyyy (CultureInfo : "nl NL"). Now, when you choose to 'type a date', you get in the display: "Type a date: (MMDDYYYY)" and then the texbox where yo... |
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| DateTimePicker checkbox and XP - BUG ? (VIP replies) |
| microsoft.public.dotnet.framework.windowsforms.controls |
| Hi all, I think I've found a bug using the standard DateTimePicker control (VS.Net 2003) under XP. What happens: Create a project and include the source code below. It simply displays : a dateTimePicker control with the checkBox a button a textBox that show the current state of the dateTimePicker.checked value (true or false). Under XP, click the 'Get state' button and it shows 'TRUE'. That's corr... |
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| DateTimePicker control - any way to display no value? (VIP replies) |
| microsoft.public.dotnet.framework.windowsforms.controls |
| I'd like to use the DateTimePicker control on a form, but the date may be unknown, and when it is, I need to display no value in the control. I've played around with the properties a bit, and it looks like this isn't possible. Am I right in thinking we're expected to use the check box for this? I'm afraid that won't work for me users know what an empty text box means, but they just wouldn't unders... |
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| DateTimePicker Control in DataGrid (VIP replies) |
| microsoft.public.dotnet.framework.windowsforms |
| Dear all, I have read the article in http://www.msdn.microsoft.com/msdnmag/issues/03/08/DataGri ds/toc.asp?frame true I copy the idea of creating the DataGridComboBoxColumn to DateTimePickerColumn. Everything just fine but the SetColumnValueAtRow. The original article can update the value of the datagrid but my version can't. Here are the code of the original: private void comboBox Leave(object se... |
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| DateTimePicker detect CheckBox Change (VIP replies) |
| microsoft.public.dotnet.framework.windowsforms.controls |
| Hello, I cannot seem to determine when the check box is clicked or unclicked. In addition, it appears that the check box disables the control but the user can still select the drop down that enables the control. Does anyone have a solution to these problems? TIA Dan |
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| DateTimePicker memory leak (VIP replies) |
| microsoft.public.dotnet.framework.windowsforms.controls |
| I have winforms that use the the DateTimePicker control and it appears to have a memory leak. During load testing, where forms are repeatedly opened and then closed, the memory usage of the application increases until it I eventually get an OutOfMemory exception. I created a simple test form and a driver that repeatedly creates and destroys the test form a specified number of times. When I don't c... |
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| DateTimePicker Parts (VIP replies) |
| microsoft.public.dotnet.general |
| Is there a way, via code, to modify which portion of the DateTimePicker control is selected when the control gets focus? For example, if the control contains 12/25/2003, could the portion that is selected be the Day (25) portion of the control? |
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| DateTimePicker ValueChanged (VIP replies) |
| microsoft.public.dotnet.framework.windowsforms.controls |
| How can I detect when the user has changed the value in the DateTimePicker by typing one character in the 'day of month' field? If the date is initially 7/2/2004 and I type a 3 in place of the 2, no event fires. When the value changes to a different date, I want to show OK/Cancel buttons to accept the new date. If they type a 3 over the 2, then I want the buttons to show. If they type a 2 over the... |
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| DB2 managed provider problems during a FILL (VIP replies) |
| microsoft.public.dotnet.framework.adonet |
| I'm having a problem trying to fill a dataset with the managed DB2 provider. My Fill command executes with no exception, but when I try to query the number of rows returned back in the dataset inside the immediate window during debugging, I get the following: ?ds.Tables(0).Rows.Count 'ds.Tables' is not declared or the module containing it is not loaded in the debugging session. Before my Fill stat... |
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| Dcom component and events (VIP replies) |
| microsoft.public.dotnet.framework.interop |
| I have one DCOM component that is already working in a VB6 applications, and I have successfully imported it in a Visual Basic Net Application. Everything is working OK, except that my application does not receive the events the component fires. The wizard has include the correct code ( it knows the component fires events), but the code is never called. It is working in VB6, so I don t think it s ... |
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| DDLB user control.. wherre to put code.. (VIP replies) |
| microsoft.public.dotnet.framework.aspnet.webcontrols |
| I have a user control that dynamically creates a dropdownlist.. when an entry in that is selected, it creates a 2nd ddlb with sub codes and when that is selected it creates another ddlb with more sub codes etc etc.. Each of these drop downs return part of a code that when combined will give the argument to a select to retrieve data on the main page. the sequence of events is as follows.. initial p... |
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| Debugger and Exception in static class initializer (VIP replies) |
| microsoft.public.dotnet.languages.csharp |
| Set "Common Language Runtime Exceptions: When Exception is Thrown" to "Continue". Execute button1 Click. Debugger should break on line "SHOULD BREAK HERE" and not on line "SHOULD NOT BREAK HERE". Debugger breaks on correct line for normal class initializers. class Abc { static Abc() { throw new System.Exception("SHOULD NOT BREAK HERE"); } } private void button1 Click(object sender, System.EventArg... |
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| Debugging Trust Levels - Oledb (VIP replies) |
| microsoft.public.dotnet.framework.aspnet.security |
| Hi There, I want to configure a custom trust level for asp.net that will essentially be the same as low trust except that it adds the ability to run oledb connections. When setting this up, it doesn't seem to be as simple as just adding SecurityClass Name "OleDbPermission" Description "System.Data.OleDb.OleDbPermission, System.Data, Version 1.0.5000.0, Culture neutral, PublicKeyToken b77a5c561934e... |
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| Decimals wont show (VIP replies) |
| microsoft.public.dotnet.languages.vb |
| i have a decimatl decsum and decqty the values are 456 and 229 when i divide these two numbers and try to display teh results in a text box i get 228 when i need 228.044 i have tried to fromat "#0.0000" but alls this does is give me 228.0000 what do i need to do to fix this ? WStoreyII |
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| Declare Custom DLL Control in Code-Behind to set properties (VIP replies) |
| microsoft.public.dotnet.framework.aspnet |
| Good afternoon, I created a custom control, compiled it into a DLL, and added it to the BIN directory. I placed an instance of the control in a webForm and am trying to programatically change its properties via the Page Load subroutine in a code behind file. Can someone please tell me the proper procedure for declaring the new custom control in the code behind file? I have supplied all of the code... |
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| Declaring control array (VIP replies) |
| microsoft.public.dotnet.languages.vb |
| If you're wondering why I post so many questions, it's because I want to make an entry in the Guinness Book of World Records. But because I post so many, I try to make them simple. Here is (I hope) a simple one: I've declared a "control array" just after the WFD generated code like this: Dim LabelArray() as Label {Label0, Label1, Label2, Label3, Label4, Label5} But when I try to do something like ... |
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| Declaring Treenode Click Event (VIP replies) |
| microsoft.public.dotnet.languages.csharp |
| I know, it's a stupid question, but how do I declare the TreeView Click event? As in Treeview1.Click ..... I keep getting a error. Thanks, Susan |
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