C# Equivalent Of The Code: DataTable.GetChanges(Not DataRowState.Deleted)?
Jan 23, 2011In VB.NET:
DataTable.GetChanges(Not DataRowState.Deleted)
What is the equivalent in C#?
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DataTable.GetChanges After DataTable.Merge?
Apr 28, 2009Not certain what exactly I am doing wrong here, but I am having problems in setting a new DataTable (for posting back to the database) to the Changes resulting from the Merge proc of 2 DataTables. The code works fine until I attempt to set the ChangesTable --- it always ends up = Nothing.What is strange is that the "preMergeCount" = 0 and the "postMergeCount" = 23, which is EXACTLY how I expect it to be! So I know that the Merge is working correctly.
Dim sqlTable As DataTable = dsMonitoring.Tables("SQL_SRTraps")
Dim exlTable As DataTable = dsMonitoring.Tables("Excel_SRTraps")
AddHandler sqlTable.RowChanged, AddressOf Row_Changed
[code]....
Save All Changes On DB If DataTable.GetChanges() Don't Have Last Changes?
Feb 16, 2012I work with windows forms and on the form I have a DataGridView. This gridView I fill with a DataTable dt. The dt I fill with OdbcDataAdapter. For save the changes I use adaper.Update(dt) on Event Handler gridView_RowLeave. The problem is that dt doesn't have last changes of gridView. For exemple if I modify some data in one row or add a new row with data when I leave that row the method dt.GetChages() return false and I must leave more that 1 row for dt.GetChanges() return true.
[code]...
Check Rowstate In GetChanges DataTable?
Mar 10, 2010i getchanges from dataSet
when i am iterating through the rows I would like to check rowstate to see if row was added or modified. It says I cant check through an instance and the expression will be ignored..
Dim changes As New DataSet
changes = dsRates.GetChanges()
Dim count As Integer = 1
[Code].....
DataTable.getChanges() Not Working As Intended?
Mar 13, 2010I'm currently working on a VB .net project that requires connection to a MySQL table. I've no problems loading data from MySQL table to a datagridview. I'm hoping to allow users to make changes to the datagridview and save those changes back to the MySQL table. Below is the Sub I wrote to save the changes. Before saving, it will check if there were any changes made to the datatable. However, datatable.getchanges() does not seem to detect changes made to datagridview (and hence, datatable; I "bound" the datatable to datagridview by means of bindingsource).
[Code]...
Skipping Deleted Rows Of DataTable?
Jul 20, 2011I have two datatable that I pull information from a db. I have a complicated form, and I have found it easier to write a simple SQL statement to pull the records. I have then used other controls on the form to trim the info down even further. When a particular falls out of the secondary control it is then deleted from the datatable.
I am then going back through the datatable and performing other actions on the datatable. When I narrow the information, sometimes I'm getting a DeletedRow is inaccessible. I have been looking at a way to do an IF statement to see if a row has been deleted, but I haven't figured out a way to skip a deleted row. Is there a way to skip a deleted row that I'm not seeing.
.net - File Constantly Is Used By Code And Cannot Be Deleted Manually Or With Code?
Feb 17, 2012I am trying to make a voice recognition thing with google's voice api.I modified UPLOADFILEEX function that can be found on codeproject.The file I wish to delete is C:ecord.flac Here is the function below
Public Shared Function UploadFile(ByVal uploadfilename As String, ByVal url As String, ByVal fileFormName As String, ByVal contenttype As String, ByVal querystring As System.Collections.Specialized.NameValueCollection, ByVal cookies As CookieContainer) As String If (fileFormName Is Nothing) OrElse (fileFormName.Length = 0) Then
fileFormName = "file"
[Code]...
Add Code For Datarow.state Deleted?
Jun 11, 2012For each change, I have to add some codes (fill an application Audit Table).I have add a button to do all the update (iterating a datatable procuced witha .getChanges function ),but when I will use the value of ID (first collumn (hidden) of the datagridview) , Ireceive an error : DeletedRowInaccessibleException.
View 3 RepliesVS 2010 Deleted Code Still Executed?
Nov 19, 2010does anyone know how to solve this kind of issue?if i add code to an existing code in my control/function/subroutine it will not executed and also if i delete some existing code in my program the code is still executed even though i delete it..
View 5 RepliesGeneric List Equivalent Of DataTable.Rows.Find Using .NET?
May 8, 2009I am converting DataTables to a generic list and need a quick and easy way to implement a Find function. It seems I am going to have to use a Predicate. Upon further investigation, I still can't seem to re-create the functionality. Private Function ByKey(ByVal Instance As MyClass) As Boolean Return Instance.Key = "I NEED THIS COMPARISON TO BE DYNAMIC!" End Function
Dim Blah As MyClass = MyList.Find(AddressOf ByKey) But I have no way to pass in a key variable to this predicate to do the comparison, as I used to do with DataTable..Dim MyRow as DataRow = MyTable.Rows.Find(KeyVariable) How can I setup a predicate delegate function in VB.NET to accomplish this?
Do not recommend LINQ or lambdas because this is question is regarding .NET version 2.0.
Delete The Programming Code For The Deleted Control?
Sep 30, 2010Delete the programming code for the deleted control.
View 3 RepliesDataRowState.Added Is Neven Been Set
Jul 29, 2009I have done the following, however haschanges(added) is not true but set to 'Modified'. When will actually 'Added' will be set? I am relying on this flag to see whether the record is newly added or an existing one.[code]
View 3 RepliesTestDataSet.HasChanges (DataRowState.Added) Does Not Return True When New Record
Dec 15, 2011I would like to get message, or true result when DataSet get new record (new row). But, I always get message as "no". [code] Button3 should return "Yes" as new record has been added, but does not? [code]
View 2 RepliesVS 2005 - Inherited Controls - Data Column Returns A Datarowstate
Aug 22, 2009on the custom inherited control i created, i noticed that when i bind my custom property to a data column, if that data column returns a value other than Null it always return a datarowstate of modified even if there were no changes. don't make any changes to the current record before you go to the next record. you will see that the rowstate will still return Modified.
View 8 Replies.net Equivalent For The Code?
Jul 28, 2009private bool txtRegExStringIsValid(string textToValidate)
{
Regex TheRegExpression;
string TheTextToValidate;
[code]....
Equivalent Of C# Code In VB?
Nov 24, 2010The code in C# is as follows:private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
[Code]...
Equivalent Of This VB6 Code In .net?
Jun 6, 2011Schema is a string, lstSchemas is listbpb and rc is a variant
Schema = VB6.GetItemString(lstSchemas, rc)
Use Something Equivalent To The CODE In VB?
Jan 23, 2010I find that when I have the string
in cell (1,1)
and in Excel I put in cell(2,1) the formula
= code(mid(A1,1,1))
I get the result 63, which I should.But in visual basic, when I write
v1 = .cells(1,1)
.cells(3,1) = v1
msgbox asc(mid(v1,1,1))
the message returns 65, which is the code for A, not Ā.It is clear that VB is reading the contents of cell(1,1) correctly because it puts the correct text in cell(3,1).The Code function isn't supported in Visual Basic. I have been unsuccessful trying to use Application.code It won't compile. How can I get VB to give the correct code of the character Ā?
What Is The Equivalent Code In .Net
Feb 22, 2011What is the equivalent vb.net code of the following?
using System;
using System.ComponentModel;
using System.ComponentModel.DataAnnotations;
namespace ContosoUniversity.DAL
[code]....
Compile Error For Seemingly "equivalent" .NET Code (compared To C# Code
May 4, 2010Following is the OnCallBack (async communications handler method) in C# and translated to VB.NET.The c# one works fine, but the VB.NET one gives a compilation error: "Property access must assign to the property or use its value." The error happens on the following line:
state.CallBack(Me,
New
ClientEventArgs()
With
[Code]...
DataGridView.DataSource.GetChanges Not Correct
Oct 13, 2009Posted this over at WinForms forum, just not much activity and thought I might get a quick response here....Not real certain if I am implementing this correctly, but I am attempting to programatically modify cell values in a DataGridView control with an underlying DataTable as it's DataSource.
[Code]...
What's The Equivalent Code Of This In VB Express 2010
Jun 13, 2011got this code from this site: [URL] public static void Send(String from, String to, String subject, String messageText).
SmtpMail.Send("mcb@mindcracker.com", "webmaster@mindcracker.com", "Subject", "Message body").
what's the equivalent code of this in vb express 2010.
GetChanges() Doesn't See Changes Made Using BeginEdit And EndEdit
Mar 5, 2010GetChanges() doesnt see changes made using beginEdit & endEdit?The data is bound is also bound to a DGV and when I edit there "manually" by entering cell and call GetChanges() it works correctly.
'Does RateType already exist in table?
For Each row In dsRates.dtValidLaneRates
_tableID = row.tableID
If row.RateType.Contains("Default Rate") And _
[code]....
Make A Process Monitor Tool With WMI That Monitor The Processes Created Or Deleted - Code Will Not Work
Sep 9, 2010I want to make a process monitor tool with WMI that monitor the processes created or deleted, but the code will not work. Note to reference System.Management,
CODE:
Code dowload:
CODE:
.NET Equivalent Of This C# Code For Wiring Up And Declaring An Event?
May 26, 2010I'm working on a tutorial to build a media player in Silverlight and am trying to wire up an EventHandler to the timer.Tick event of a DispatchTimer object so that the time of the video is synced with a Slider object.
The sample code is in C# and I can't for the life of me figure out the proper syntax in VB.NET with RaiseEvent and/or Handles to wire up the event. Below is the relevant C# code. I'll include comments on where I'm getting stuck.
[Code]...
Equivalent Of Excel's CODE Function To Work
Jan 23, 2010In cell A1 of Sheet2 I have the following text [code]how to I get VB to recognize that the 4<sup>th</sup> character of the string has character code 63?
View 3 RepliesOpenFileDialog Equivalent Code For Console Applications?
Apr 26, 2012In the GUI world, OpenFileDialog provides one stop shopping for the user to select the drive, the folder and then the file.Has anyone seen a set of code to implement this functionality (although obviously one value at at time /select drive/selectfolder/select file) in a console application?
View 1 RepliesDeleted Records Not Deleted?
Feb 8, 2012I really am stuck. I can add records to a table ok . when i close and restart my code the new records are still there but deleteing does not work. I delete the records, they disappear. I close and restart the code agian but the deleted records return. this is my code.
[Code]...
Equivalent Using Statement Code For Which Online Translators Don't Work?
Aug 26, 2010How do I write the equivalent c# code below in vb.net? This 'About' form is launched by a ToolItemMenu. It is just informational and contains only an OK button
//Form contains company logo, copyright info and OK button.
public About formAbout;
using (formAbout = new About())
[code].....
Nhibernate - What Would Be The Equivalent .NET Code For This C# FluentNHibernate Component Mapping
Feb 4, 2010I'm a C# programmer constrained to write VB.NET code.While exploring NHibernate further for my current client, I encountered FluentNHibernate, which I find real attractive.But now, I wonder how to "translate" this C# code for component mapping into VB.NET code:
Component(x => x.Address, m =>
{
m.Map(x => x.Number);
m.Map(x => x.Street);
[code]....
what I miss is how to continue with the brackets in VB.NET, since there's no Begin End keywords or so.
EDIT 1: Following Mr. JaredPar instructions, I figured that his solution might work. If we take the time to read his answer, we may notice that we both don't know what the MType is within his solution. I might have found out that the MType is:
FluentNHibernate.Mapping.ComponentPart(Of TComponent)
Thus, TComponent is, from my understanding, an anonymous type that I shall parameter to use. From this point of view, since I wish to map the properties of my Address object, replacing TComponent in my help method signature seems not to work.
Private Sub MapAdresseHelper(Of Adresse)(ByVal a As FluentNHibernate.Mapping.ComponentPart(Of Adresse))
a.Map(Function(m) m.Number)
a.Map(Function(m) m.Street).Length(50)
[code]...
The error I get is that my Address class doesn't have a property member named Street, for instance. It sees my Address type, it recognizes it, but it seems buggy somehow. I guess VBNET is poorly designed for lambda expressions and is less evolved than C#?
