I'm using VB.net and WPF 4, as well as an SQL database.
I have been using this EXACT code successfully for several days now, with absolutely no problems whatsoever. However, now, suddenly, it is throwing the weirdest exception...
Public Class ROSTER
Dim table_adapter As New AGENT_ROSTERTableAdapters.AGENTROSTERTableAdapter
Dim roster_table As New AGENT_ROSTER.AGENT_ROSTERDataTable
[Code]....
For the past 3 weeks now, we are encountering a sudden loss of table in our database, but with that. our .mdf file is still on its same size before this disaster comes along and again..anyone had encountered or know how to solve this problem.
View 3 RepliesI'm trying to load data into a DGV row at a time from a dataset and keep getting the following error on the highlighted line.
Private Sub LoadClientGrid()
Try
grdClientList.Rows.Clear()
For Each row As DataRow In rsClientGrid.Tables("tblClients").Rows
Dim grdRow As New DataGridViewRow
[Code] .....
an application i developed using vb 2008 express, to fill a web form with data from an access database, one after another when a button is clicked hasn't given me what i expected. the loop was suposed to stop after filling web form with the first data on clicking a button and continue to fill the webform with the next(2nd) data from the database on clicking the button again. Below is the code i wrote
Private
Sub STARTButton_Click(ByVal
sender As System.Object,
ByVal e
[Code]....
I have a window application develpoed in vs 2008, framework 3.5, in which i have put a button.. Now where i click that button the other text boxes are filled up with the data from database thru web service.. what i want is while all text boxes are being filled i want to show an animated loading gif image till data loading is completed in all the text boxes.. i have tried to use image picture box but while data is loading gif image is displyes but in static mode.. cant see animation... i think this is because data loading and animation both are done thru one UI thread..
View 8 RepliesWe got a legacy vb.net applicaction that was working for years. But all of a sudden it stops working yesterday and gives sql server timeout.
Most part of application gives time out error , one part for example is below code :
CODE:
It was working and now gives time out in command3.ExecuteNonQuery()
Some information : There isnt anything that has been changed on network and the app uses local database. The main issue is that even in development environment it donest work anymore
for some reasons suddenly all comboboxes within my project An exception (System.NullReferenceException) is thrown whenever I try to scroll down a DropDown or a DropDownList to the very end. This happens to all comboboxes with more items than the MaxDropDownItems property with a vertical scroll bar. No code is being executed at the moment the exception is thrown. The application is just waiting for the user to complete his entries.
This did not happen until today and I didn't change no code. There are lot of comboboxes within the project and I'm very amazed (actually frustrated) about the exception .
[Code]...
i having a syntax error when im inserting data to two table.i check all the spelling and also i put [] in my reserved word.. by the way here's the code..[code]
View 6 RepliesI m getting a syntax error (oledbexception was unhandled, Syntax error in INSERT INTO statement.) while trying to add a new record to my access table. This is the
[code]...
Everything runs smoothly up untill this line daadmin.Update(dsadmin, "AdminLogin")I dont see what im doing wrong, the database name is booking.mdb and the table name is AdminLogin
an error message when I am trying to load the data into a listbox and the value in the table is NULL. I am new in programming and I am using vb2005 Here is my
[Code]...
I have a database in .ACCDB format with some tables.
I'm successfully loading it into an OleDbDataReader with the following code:
string connectionString = "Provider=Microsoft.ACE.OLEDB.12.0;data source=C:\marcelo.accdb";
OleDbConnection conn = new OleDbConnection(connectionString);
[Code].....
I'd like to load the table "clientes" to a datatable instead. How should I do it ?
I am facing a "weird" problem with the DataGridView. In fact, I have a function, that loads each table of an xml file into a datagridview (27 tables all with same structure except one called Listes). In the datagridview I have a combobox column to select "type" (it's the 3rd Column, so it's index is 2 normally). The problem is that when I call the function loaddata for the first time, all work perfectly ! If I call it for a second time, to reload the data, I get an error of cast! I verified and it seems that first time I call the function the column that contains the combobox is column(2), but when I run it again automatically the indexes of the columns are changing and am getting the error, because the column that contains the combobox is becoming column (3) and that explains the cast error because the column'(2) is not anymore the combobox so the cast will fail ! What I can't understand is why it's reordering that way my columns automatically ?
Here is the code:
vb.net
Sub LoadData(Path As String )
Dim oData As DataSet
oData = New DataSet
oData.ReadXml(Path)
Dim i As Integer
Dim MaGrille As DataGridView
[Code] .....
how to load the contents of an Access Database table into a Dataset? The Access Database consists of multiple tables with different data table names but all tables has same row header and same data type.
View 2 RepliesI am using Dynamic Textboxes. I am Loading table in Datatable from Database. From that Datatable i am naming the textboxes. After entering some values in the textboxes during runtime, i want that values to be added to the database. So i Coded as below. But i am getting errors as value of type '1-dimensional array of System.Windows.Forms.Control' cannot be converted to 'System.Windows.Forms.TextBox'.Here's my coding
Private Sub btn_click(ByVal sender As Object, ByVal e As System.EventArgs)
[Code]...
I have just turned to using VB.net and would like to know why when I load an RTF (with tables in a 9x9 cell format) all appears in a 1x9 format...i.e. instead of loading the tables (some are side by side), they load up in series (below each other).
My simple line of code on a button is:
RichTextBox.LoadFile("c: est.rtf")
I wrote a function that allows me to retrieve data from a single SQL table and place it into 3 datagridviews. The problem i am having is as follows:* Whenever a user types something in anyone of the datagridviews that information is recorded in all three of the datagridviews.I am seeking partnership to address my issue. I have enclosed my function that is called to populate the 3 datagridviews
Function SetupColumns(ByVal str As String) As BindingSource
Data_set.Clear()
Try
[code]......
ive a dictionary database with table having 32000 entries... ive bound it to the listbox(using binding source and dataset)... but when the program starts it hangs for 1-2 minutes in the beginning..
View 4 RepliesI get an error "vb6 compiler gives an error Error in loading dll" and the compiler point to code line with "If Request.Form("EDAServerName") <> "" Then" and the word Request hilited. I searched many places with no help. Does any one know of resolution ??
View 2 RepliesI got an error when I tried to save a deleted record in a table which I use to store username and password.
I can delete with no problems but the error message popped up when I clicked on the update icon
My login code is like this
Imports System.Data.SqlClient
Public Class Form1
Private Sub btnOK_Click(ByVal sender As System.Object, ByVal e As
[Code]....
I am getting the error "system.argumentException; Column ' test_id2' does not belong to table Table. At System.Data.GetDataColumn( string columnname0 at system.data.datarow.get_item(string columnName).
This error is occuring right after I set the parametervalues in the report object of the Crystal report.(Note this a visual basic.net 2005 windows form application.)
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim cryRpt As New ReportDocument
Dim sql As String
[code]....
The value for the first parameter @Parm_1d1 value to the crystal report version 11 is correct. However, when trying to access the second @Parm_1d2 parameter ,the values past to the crystal report is not correct.
i want to know that when im adding my data in form after loading one person data then 2nd person data the 2nd person data cannot come to next line it is adding on the same line.plz tell me wat can i do?
View 6 RepliesI am trying to load a xml file into a data set by loading the information into a data row. when i try to complete the task it throws a nullReferenceException. the row has data in it and i used the code earlier and it work.
[URL]
Imports System.IO
Imports System.Xml
Public Class frmMain
[Code].....
I have three table and I want to put the three table's data in one variable and from that variable i will produce the datatable and then want to write the data in CSV file.I am Following this step..
Void
GetDetails()
DataClasses1DataContext
[code].....
An application generates a runtime excpetion saying "Cound not load file or assembly 'CustomMarshalers, Version = 2.0.0.0, Culture = Neutral,PublicKeyToken=b03f5f11d50a3a' of or one of its dependacies. The system cannot dind the file specified.'This application is written in .net but is calling interop assemblies for SHDocvw and tool is running on XP.this application works fine on other users desktops. Earlier the same user was able to run the application on the same machine... it could be that security patches installed later is causing this.But are there any known resolutions for this error message
View 4 RepliesI am having a problem, which I did not have until recenty, adding personal macro buttons to the Quick Access Toolbar using Excel's Customize function. The macros, which I know are, enabled and executable, cannot be assigned to new buttons on the QAT. Actually, I can add macro buttons to a new workbook fine, but when I close, reopen the workbook, and try to add another personal macro button, they all disappear.
I set 'Show Add-in User Interface Errors' in the Advanced tab of Excel Options and get this error when I open a workbook with personal macro buttons added to the QAT[code]...
I deleted the macros and manually keyed some simple command (msgbox 1) into a new macro and still got this error message.
I set 'Show Add-In User Interface Errors' on a remote server (where I do not have this problem) and I do not get this error message when loading workbooks with customized QAT.
im trying to load a database and I get this error.
View 3 RepliesError While Loading Dialog Window [code]...
View 7 RepliesPrivate Sub Form_Load()
datReg.Recordset.MoveLast
End Sub
I want to show the last record after the form is opened but I got this error :
Run-time error '91': Object variable or with block variable not set
When I right click on the ToolBox and click on Choose Items Error while loading property page comes up, and my toolbox is disabled, Also in the output this text appears:The Windows Forms Designer Package ({7494682B-37A0-11D2-A273-00C04F8EF4FF}) did not load because of previous errors. For assistance, contact the package vendor. To attempt to load this package again, type 'VBExpress /resetskippkgs' at the command prompt.
View 10 RepliesI have a login form that consists of 2 text boxes: txtUser, txtPass. Now these are not bound to any data table & I don't what them to be bound. When a new user enters his user name & password, I want to add these on a data table that has two columns: User, Pass. Data table information: Data Source = Login.accdb, Data table = LoginTable, Connection = LoginCn. I use visual basic 2010. So how do I do this?
View 1 Replies