Create Index On Program?
Sep 24, 2009I've looking everywhere but can not find out how to create index on vb 2008.what I mean is like in vb 6, for example in TextBox properties, I can create index. how is this working in vb 2008?
View 2 RepliesI've looking everywhere but can not find out how to create index on vb 2008.what I mean is like in vb 6, for example in TextBox properties, I can create index. how is this working in vb 2008?
View 2 RepliesI want to create an index on my table. I used the following command Code:
cn = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=D:database.mdb;Persist Security Info=False")
cn.Open()
cmd = New OleDbCommand("Create INDEX itmno_idx ON INVENT (ITEM_NO)", cn)
cmd.ExecuteNonQuery()
Now I want to use this. Is there a file created with some extension when i do an Indexing?. Is the above statment actually index the field, ITEM_NO or do i have to use ALTER TABLE command? Currently I am getting error "Cannot execute data definition statements on linked data sources"
I have a VB application where winsock is used. I want to convert it to VB.Net, so as I understand I should use System.net.sockets to do this.
But the problem is in the VB application multiple sockets are created by using the index feature of the winsock . example
Load Socket(isocket)
where isocket is an integer variable that is incremented each time, for a new connection request.
So how do I do the same, ie. open multiple sockets in vb.net?
i want creat a simple game. but how to create a random value to index in array
i.e index of aray [1,2,3,4,5,6,7,8] is generated randomly become [8,6,1,5,4,2,3]
then i use tha indext for a button text
"and anyone can make below code more simple"
Button1.Text = arr_tombol(1).ToString
Button2.Text = arr_tombol(2).ToString
Button3.Text = arr_tombol(3).ToString
[Code].....
How to create a non-unique index in sqlite?I'm using vb.net to create the tables.
View 1 RepliesHow to create multiple sockets as an index
View 3 RepliesI have a question related with VB.Net Code. I see that the DataTable we can use: DataTable(0)'This return a DataRow with the selected index In the intellisense I see that this functionality can achieve with a extension... but, If I create a extension, always I need refer the Extension before to use it
[Code]...
if i want to created an array with 10 items, then the index will be from 0-9. But can i create an array with 10 items that start from index 10 - 19???
View 2 RepliesI am trying to develop a search engine in asp.net using lucene.net. I go through many tutorials and pages to get the appropriate results but i couldn't.Actually I have a folder with some files(doc,ppt,pdf,excel etc..) and i want to search within that folder only for contents and if the results are not found within that folder then ask user to search on web.
for example i have a folder with thousands of files @ C: est and if user searched for "miller" then it should search into every document. if results are found then it should display results like that[code]...
I am working in Visual Basic 2008 and am trying to create an application that calculates body mass index. I have the entire form complete as well as much of the source code, but I am having trouble creating the code for input validation. On the form I have a text box for entering weight and a text box for entering height, which are both used to calculate the body mass index. Therefore, both text boxes input information cannot be negative or an illegal character ( $, @, !...) The input validation is supposed to present a Message Box that displays something along the lines of "Please enter numeric values" when input values are illegal characters "Please enter a positive number" when input values are negative "Invalid Entry" when input values equal 0
Here is my code:
Private Sub btnCalculate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCalculate.Click
' Declare local variables
[Code].....
I had restart my program for 5 times, and i still can get through it. the due date just around the corner.
"The changes you requested to the table were not successful because they would create duplicate values in the index, primary key, or relationship. Change the data in the field or fields that contain duplicate data, remove the index, or redefine the index to permit duplicate entries and try again."
I need to create a telephone directory with search option(textbox). I use sql db as backend and vb.net for frontend. In this the user must search for a particular name using the textbox and the results have to be displayed in the gridview. how to do this?
View 1 RepliesSay I have a list and I have an object. I want to find the index of that object in the list.
View 1 RepliesI used the given below code to find the items of listview in my form[code]...
View 2 RepliesI would like to format output to a property of a custom control I have made.For instance I have a literal control in my control and when populated I want to check if it is longer than 30 characters long, if so, then go to the next space (as to not cut the word off) after the 30th character and place a <br /> tag in to place the next 30 characters on the next line.So if there were 100 characters in a string, there would be 3 line breaks in the label.I have the looping worked out to get the label populated but cannot get how to dymaically create the array based on the string lenth property and index of method.
View 7 Repliesi am having trouble putting a value in a textbox. Each time a ticket is sold i put the total price in a textbox, each time a ticket is sold for the same concert it increases by adding its self to the total price. It works at the first sale, but after that it breaks down. here is the code
Private Function DisplayMoneyTaken() As Integer
Dim totalMoney As Integer
'open the database connection
[Code].....
Getting error filling grid view from reading through data table:
Dim myDataTable As DataTable = myDataSet.Tables("SunTrust")
Dim myRow As DataRow
Dim i As Integer = 1
Try
[code]....
Error:Index was out of range. Must be non-negative and less than the size of the collection.Parameter name: index
I am using Sub to format datagridview but during Form_Load this error occur. There are rows in datasource and dg.row.count is > 0.
.Columns(0).Width = 50 <==== ERROR HERE
.Columns(1).Width = 150
.Columns(2).Width = 80
.Columns(0).HeaderText = "ID"
[code].....
What im trying to do is send vars to a flash file.The following is my code:
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim oTitle As New ArrayList
Dim oSub As New ArrayList
Dim oRate As New ArrayList
[code]....
What I'm expecting the output to display is something like "t1=value&s1=value&r1=rate&t2=value&s2=value&r2=rat&t3=value&s3=value&r3=rat" But... i keep getting this exception: index was out of range. must be non negative and less than the size of the collection. Parameter name: INDEX.
I have a datagridview, with 3 columns, each containing dropdown filters (in the column header). Of the 3 columns, 2 are working perfectly fine, but whenever I try to filter the 3rd column, it gives me this error: (Also all of the column's have the ColumnType property set to: DataGridViewAutoFilterTextBoxColumn) "Index was out of range. Must be non-negative and less than size of the collection. Parameter name: index." The error points to the part that begins with "If dgv1.Rows(e.RowIndex)..."
Private Sub dgvWPS_CellFormatting(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellFormattingEventArgs) Handles dgv1.CellFormatting
If e.ColumnIndex = 1 Then
[code]....
Hello I want to create a windows form application program that can create games something like Gamemaker or Klik & Play (butt less advanced) with D&D "Drag and Drop" events and actions.
View 7 Repliesi am trying to get the value into the cur_stock where item_id = datagrdiview.curentcell.value.I am lookin out for the solution since couple of days, but couldnt figure it out.Well, m trying to make this work on CellMouse click event
Below is my vb.net code:
Private Sub DataGridView_stockout_CellMouseClick(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellMouseEventArgs) Handles DataGridView_stockout.CellMouseClick
Dim i As Integer = Stock_checkDataSet1.Tables(0).Rows.Count - 1
[code]....
Trying to input a high setpoint, low setpoint, a % load, and number of compressors, then calculate the temp that all compressors are off. Then build a datagridview with the staging of compressors from all off to all on for each compressor up to 10 compressors.I am trying to insert headers from 1 to 10 compressors (Variable) with the text "Comp1", "Comp2", etc....Two rows with header. I am trying to use an array with index number to insert the text, but that is where my problem happens."Index was out of range".Here is my code
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim i As Integer, num1, num2, num3, num4, alloff As Single, stg As Single
TextBox1.Focus()[code].....
I've got the web browser with tabs in all working fine, but there's one bug, i can add tabs, delete em, etc.. but when i delete a tab then go to create a new tab, it gives me the error: InvalidArgument=Value of '6' is not valid for 'index'. Parameter name: index '6' is the number of tabs i had open.Here's the bit of code i use to create the tabs with the browser in it:
vbcode
Dim browse As New WebBrowser
browse.Name = "b1"
browse.Dock = DockStyle.Fill
[code]....
To create a program that asks for input then uses an else statement to create a handling fee balance.
Input: sales record - first name, last name, purchase amount, balance before purchase
Output: report - full name, old balance, purchase amount, handling fee, new balance
Definitions: handling fee is 5% of the old balance if the old balance is less than $1000.00 else it is 2% new balance = old balance + purchase + handling fee
Processing:
Ask for and receive sales information
Calculate new balance
Print output report
End the program when a purchase amount of 9999.99 is entered
When the selected index changes I for a second time this code errors.
vb.net
lvReports.SelectedItems.Item(0).SubItems.Item(2).Text
with this error message
InvalidArgument=Value of '0' is not valid for 'index'. Parameter name: index
Why is this?It worked for the listviews.click event perfectly.
I have a project to do for one of my classes that i need help on. Its and extra credit so im left on my own. Project Create a program to allow a student to create there own schedule. what i am trying to do is create a checkedlistbox for the student to check classes they are taking, and need something else to pop up or to show in another box or listbox the classes they can take for the next quarter. I know it has to do with if then statements but i dont know how to write basically:"if (class is checked in checkedlistbox) then ( these are the classes you can take)".
View 2 Replieshow i can write a program to create a shortcut in the startup folder of a different program. So i have one program on my computer that should run at startup, i just need another program to create a shortcut to it, and then copy this shortcut into the startup folder.
View 20 RepliesI am coding a program for a movie trivia game that randomly shows a movie quote and the the user selects a movie name from a combo box that matches. I used a array for the movie quotes and a comboBox for the movie names. I have coded a portion of the program but I am stuck on how to compare the array quote being shown to what movie the user selects from the comboBox. I have tried numerous different things but none seem to work right. The way I have it coded now it shows that every movie I pick that it is right even if it is wrong. I am going to show part of the code here and also attach the entire solution for anyone that needs it .
[Code]...
I am very very new to VB.NET and would like to ask a simple question. I want to create a vb.net program and allow visitors to a website to download this program. However, I prefer not to have visitors download a zip folder. I would like to have a program that just gives a prompt to save in a selected folder, once the saved file is selected it prompts the person to download, and then when finished prompts the person to run the program. The reason is twofold:
1. I don't like the extra step involved with unzipping the file. and 2. I don't like the visitors having to look for the "main" file program within the new downloaded folder. So is there any way to have just one file for others to download without having it in a zip folder?