I need to cycle through a controls binded sources data.For instance I have a text box bound to a dataset, the datamember is a column in that tableadapter
I then would like to click a button that will show the next record.
I am currently working on a project for myself which looks through employee's information to find their availability to work. I've tried making a structure which holds the employee's information but I can't think of a good way to create different instances of it and store information in it at runtime. I'd prefer to load the information in at startup and not have to declare each employee and information. I am very new to Visual Basic 2008 but I have a good grasp of arrays from C and C++.
View 3 RepliesI have a function that is giving me fits.This is designed to identify all files in a given directory (myPath), and then cycle through those files. Each file in the directory is a well-formed XML file full of name/value pairs. Here is an example of what they contain:
Quote:
- <eran-applicationmenu>
<name>Accounting</name>
[code].....
I have the table part working fine, but i get an error for the cell part
Dim tb As Word.Table
Dim cell As Word.Cells
Dim tableStringArray As New ArrayList()
[Code]....
Error : Expression is of type 'Microsoft.Office.Interop.Word.Table', which is not a collection type.
how i should cycle through each cell?
I have the table part working fine, but i get an error for the cell part
Dim tb As Word.Table
Dim cell As Word.Cells
Dim tableStringArray As New ArrayList()
[code].....
i have a dataset and i want to create a textbox and a button that once you click on it it will search for the word in that textbox in the dataset, for example like in sql with the "LIKE %xxxx%" format.
here is an exapample:
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim dr As DataRow()
[Code].....
I have a Dataset Lets call it Dataset1. I have 1 table in this dataset created in designer called settings. I want to be able to declare the intial dataset in one form as a global variable and make a copy of it in another form. However I don't want to fill it until after I have made the copy except that it is not working.[code]The problem is the Dt returns the same amount of columns and the exact column names that I have in the settings datatable. When I do Dt.ReadXml("Myxmlfile") I don't get any rows populated yet the columns are in the xml file and in the dt copy of the datable.
View 1 RepliesI am trying to export a dataset to a csv file
VB
Private Sub ExportDatasetToCsv(ByVal MyDataSet As DataSet)
Dim str As New StringBuilder
For Each dr As DataRow In MyDataSet
[code]....
I am getting an error on this line: For Each dr As DataRow In MyDataSet The error is Expression is of type 'System.Data.DataSet', which is not a collection type.
I have tried everything I can to get beyond this error which shows below as <<<<< error here. It is trying to fill a dataset from a data adapter. If I change the SELECT statement to just SELECT * FROM xTable I get the correct number of records in each table. But anytime I try with a more complex statement I get the error message shown below which indicates System.Data.Common.DbDataAdapter.Fill(DataSet dataSet. I've completely erased all data and entered a new set of test data so I know there is no problem with relationships. Each table has primary key which is foreign key in other table. IS there something wrong with the Imports section: Imports System
[Code]...
I have designed an application for a company which has 5 client computers that read and write data to an sql2008 instance on a server.I would like to know the way to detect a change in a table whithout having to refill the table adapter.Let's say that all the client applications have a datagridview on the main form which binds to a table on the database lets say Members table (members binding source)Whenever a client makes a change to that table (lets say that it updates the Last name of a member) i would like the rest of the clients to detect that update and as a result ,update the specific row or cell in the datagridview.Is there some kind of event that is raised?
View 1 Repliesi am trying to copy data from a standard Dataset to a Type Dataset (XSD) of same table structure. i want to use Automapper to do that one. So how can i do that using automapper?
View 1 RepliesI have two Datagrids, One grid has all the customers garments on it with style number and contact length. The other grid has the users who have garment issued to them. the style number is in both grids. I need to loop through the users grid and say if the contract number is 1 from the first grid then the contract date on the second grid will be todays date + 365 days (year contract) I have looked at using a stored procedure and also a for each command but I am just getting stuck with it all. [Code]
View 1 RepliesI have an application has a data entry form, and currently I'm using the form validation and validated events to validate the data - along with an error provider. I've read that this logic should be placed in the Dataset rather than the form. To that end, i've started exploring how to do that.
[Code]...
i can connect to only one Data Base with dataset in Visual Basic . but i want Have Dynamic connection to data base i mean in want to my appliction users have ablity to connect to any data base they want (For Example : Choose file from menu and then open and then Select any Data base.)
View 4 RepliesI'd like the following 4 characters cycle in a label (I think it�s the old UNIX progress bar):
[Code]...
I accomplished it by using 4 timers used as flip flop but I don�t think it�s the right way to do it. Is there an easier way to accomplish it by using looping? I tried with no avail even by using 4 labels and overlapping them.
What is the correct way to cycle through the rows in a MSProject file? I was wanting to do something like this.
Dim QICharter As Project = app.ActiveProject
Dim iCharter As Integer = 0
While iCharter < QICharter.Tasks.Count
MsgBox(QICharter.Task.Item(0).Project.ToString)
iCharter +=1
endwhile
I have this piece of code. For some reason , some records that match are not being marked as matched. I believe there is something wrong the code. Can someone plese have a look and see if there is something wrong with the MoveNext command?
[Code]...
Only my local dataset updates when adding, deleting or editing records.The Source Database is supposed to update on issuing DataAdapter. Update(dataset )However, when I check my source database after running the operations it remains the same as the original.
View 6 RepliesI'm making a simple text encoder for my chat prog. and I need it to cycle through each character and replace it with one please give me an example code of changing all A's in a string to B's and change all B's to A's. So abab would come out baba.
View 11 RepliesHow do you convert an integer to a usable color (for PictureBox.CreateGraphics)?
The color should start at red, cycle to orange, yellow, etc. and come all the way back around to red again.
This is in vb.net. If I cannot do this, how do I use PictureBox.CreateGraphics with a hex code instead of a pen?
I'm really really rusty/rubbish at this, but I have a series of 11 bitmaps in my resources folder.
I'd like, each time I click a button, a different image loads in sequence into a picture box. How do I do this. I know I've got to some array which loads the images, and a loop to increment through the array, but I can't put it together with the resources folder and the PictureBox control.
I sort of got something like this:
Private
Sub Button1_Click(ByVal
sender As System.Object,
[Code].....
cycle through the cell values of particular column in a datagridview. and if duplicates are found, display them in a message box.
Dim wacko As String
wacko = DataGridView1.Rows(0).Cells(1).Value
For m As Integer = 0 To DataGridView1.Rows.Count
[code]....
Now this is a very basic concept, but the problem is when the last row value is returned, i get an indexing error "Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index" i tried to count-1, but that doesnt cover everything. And even easier, would be to set no duplicate allowed in the datatable itself. but i want to fill those particualr rows with color.
how to set a Label's text to say how many times the timer is cycling after it is triggered. For example,
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
message.To.Add(TextBox1.Text & TextBox2.Text)
[Code]....
I want a Label to tell me how many times this timer sends ONE email, each time, the labels value increases by +1.
I have a dataset (WW1Dataset) with one data table(WW1).(database used in an access database) I'm trying to filter the dataset e.g a user wants to filter by a chosen surname (SurnameTextBox.text) so the datset is filtered to display only those records wherethe surname column in the dataset matches SurnameTextBox.text.
View 1 RepliesI am using vb.net by the way. From what I understand, Xna is not usable in visual Basic. Therefore, in order to create my characters, I defined a sprite class. Now my question is.... (I am drawing everything using a timer on the form btw by the process of invalidation.)... how do I use time to cycle through the images in an image array while the instance has no focus, and whilst the class inherits the "Control" class? Basically, how do i get these instances to act without user input? I want a character to eventually respond to user input, but I also need npcs that do not need any input in order to move themselves. Also, I need this in such a way that each instance's processes do NOT interfere with the processes of others. So that whatever timing I use does not also stall the whole window/form.
View 2 RepliesI have a situation where I serialized data from a dataset to an xml file as a method of backup.I am trying to get the data deserialized back to the dataset.But for some reason, I cannot get the data to persist back to the DB.I don't receive any error messages either.The first chunk of code is the serialization code and the second chunk is the deserialization code.I can show that the deserialization back to the dataset is complete because this code in the 2nd block DataGridView2.DataSource = Movie_dbDataSet.movie_tb - displays the data in correct form all it is all there in the datagridview2.I call the update method but it does not get persisted back to the db.[code]
View 3 Replieswhen i try to insert data from database into dataset using data adapter, it takes long time, i want to use hourglass but i'm confused how or when i type the code so user will know that application still work.
View 1 RepliesI am trying to perform a simple bound connection between an Access database and a text box on a form. This is actually Chapter 18 of the "Microsoft Visual Basic 2008" book.I get the same error message when trying to create my own project "MY ADO Form" or the "ADO Form" project supplied from the DVD provided with the book. I am running the 90 Day Trial Version of Visual Studio 2008 with SP1 and Net 3.5 SP1.
My operating system is the 64 bit Version of Vista with all updates.The error when I try to run the application in the debug mode is:"A first chance exception of type 'System.InvalidOperationException' occurred in System.Data.dll"and as a result no data shows up in the text box from the database and the data selection bar is grayed out in the form. The underlying database "Students Data Set" appears to be fine as I have seen the correct data for the fields "Instructor" and "PhoneNumber" prior to running the program and when connecting with the database.
Using a dataset, I wanna get data from a table, and use some values of the dataset return, in other fields.
I use this
Dim ConexaoBD As OleDbConnection
Dim DsDados As DataSet
Dim sqlString As String = "SELECT dias FROM varroa WHERE ID=" & cbProduto.SelectedValue
MsgBox(sqlString)
[Code]...
I have 7 variables and i need to transfer them in a dataset I have already create the file with extension .xsd and i have already a report file .rdlc I see the Dataset "DataTable"in my rdlc file but i can't see any field It gives me error of "No Dataset is Linked to the document" From the other hand it sees the dataset in the selection dataset
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