I need to pupulate a Grid, but i like to do like Microsoft SQL Server Management Studio, when you make a Select to a table with bounch of rows, it start show the result but in the botton still retriving data.So you can start looking the data, not like you get the data and after you get the last row you can asing to the Grid.
View 6 RepliesI have created a database in VB2008.NET using SQL 2008.
My problem is that while I am in the form where I see the the data, I want to retrieve backwards the related data from Owner and Car eg. the owners name and the car model.
Is there any way to do this in a single row?
I have written a code which does the thing as the title says. The problem is, the whole process took 10 minutes just for 1000 records. Here is the code:(Written in vb.net 3.5 and sql server ce)
MyConnection.Open()
Dim count As UInt32
cmnd = New SqlCeCommand(sqlstring, MyConnection)
[Code].....
i am working on my academic project in which i need to retrieve data from sql server table to textbox and image in vb.net . i am able to retrive data either in text box or only image can anyone help me out to get data in textbox as wel as image in picturebox.
View 1 RepliesI want to execute an SQL statement and put the result in to a data table.
Sub getvehicletypes()
Dim dt As New DataTable
Dim intLine As Integer = 0
[Code].....
Once Ive got it in a dataset I need to work out how to search the dataset for a code and return the corresponding description and vice versa
I'm stuck on a problem that I haven't been able solve. I'm making a visual basic program that communicates with an SQL-database. The problem emerged when I tried to retrieve data from the database with the help of SqlDataReader and save data from every row to a list (Customer) with the help of Add-method. It turned out that eventually the list had correct number of objects, but the information was the very same in each object of the list.
[Code]...
What type of collection should I use to store data from a table (in a book) that has multi-dimensional Keys to get a single value result?
What is the best way to store and retrieve these values in a program?
My problem with AddNew. It really is somewhat simple, but I can't figure out the solution. I have a form where I show a list of my rows with a given a table. The user can then select a row and press clone, which then will try to make a copy of that row.
Here is a snippet:
Dim rowToCopy As cmaDBDataSet.cmaPropertyRecRow
Dim originalID, newID As Integer
rowToCopy = CType(CType(Me.CmaPropertyRecBindingSource.Current, DataRowView).Row, cmaDBDataSet.cmaPropertyRecRow)
originalID = rowToCopy.id ' id of row to be copied
[CODE]...
.... and continue to copy the rest of the data to the newrow...One of the items in the row is obviously a primary key called id. I can not copy this data since I am creating a new row. My problem is, how do I set that value!? or atleast retrieve the value for the newly added table. I need that value so that I can call another form to actually allow the user to modify this newly cloned data. I tried using EndEdit, UpdateAll, no worky. THen I thought I could assume that the newly added row would go at the end of the table so I used MovedLast then got the currentRow id from there... That worked well until we did some deletes within the table.
i am new user of Dot net and i want to show table data into a textbox from data reader but i dont know how to asing value to textbox.
View 2 RepliesI have a DLL of classes. The first one stores an ArrayList of numbers. A method from the second class takes the ArrayList and must show the numbers in a table . I should not use windows control library. How can I make it show the data in a table?
View 8 RepliesMy sql database is :and on form1 objects is 5 X Textbox and 1X numericupdown I want with numericupdown value=1 then first 5 rows column name fill on the 5 textbox and so numericupdown value =2 then fill second 5 rows fill on the 5 textbox and so for all rows repeat.
View 5 Replieshow to compare 2 sql tables and show data that are in table 1 but not in table2?
Dim strSQLL As String = "Select t1.run from ML533 t1 left join portal t2 on t1.[run] = t2.[runNo] where t1.[run] <> t2.[runNo]"
Dim comm As New System.Data.SqlClient.SqlCommand(strSQLL, conn)
Dim ds1 As DataSet = New DataSet()
[code]....
i have tried google and other sites.. but still cannot find solution. maybe i post the wrong question. but i manage to do this code. but its only shows only 1 record missing, but its supposed to show 5 records that r missing.
I am using Datagridview to show some table data from database. It is working but its appearance is not what i am looking for.Is there a way to edit columns and rows manually ?This is a list of what i want to do :
1. First of all i want to change column captions. because they are like "Fld_name" etc.
2. There is a column that shows date. I want to write a code for it ( convert date type )
3. I want to add a button at the end of each row and write a code for it ( show detail about that record )
I'm quite new into the programming game, I've been working on this program for a few weeks now, and its coming along, but the method I searched for entering new rows of data into my table doesn't seem to update my tables after I try entering data. I have a feeling it may be something very simple that i am over looking.
Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
Handles Button4.Click
Dim conn As New SqlConnection("my datasource")
[code].....
I have a listbox that is sorted and the data table that is bound to it is also sorted. I am trying to add a Record to this data table and ensure that it is always at the end of the list. Is there a way to do this using specific character combination?
View 2 Replieshow to add together integers from the end of a list array based on certain criteria. example: a list of students assignments and grades, and im trying to add all of the grades from a certain student up based on the student id from the user.
the student table looks like this:
111 H1 09/12/2010 17
111 P1 09/14/2010 42
111 H2 10/02/2010 18
[Code].....
How Do I show the values from the dataset to the text box based on the selection from the combobox list i already populated the combobox my code is. [code]
View 3 RepliesI am trying to retrieve the data from MS Access Table to LIST-VIEW, its difficult for me to write the code
View 4 RepliesSo in this gridview, there is a column for status and I want to have a drop down list with Pass, Pending, Fail appear when the edit button is clicked. These values are already in a table, so I need to somehow bind from this table to each ddl for every row.Here is the column from the gridview. As you can see, I would like to just have a label showing when not in edit mode, and a ddl when the edit button is pressed
<asp:TemplateField HeaderText="During Production Status" SortExpression="DuringProductionStatus">
<EditItemTemplate>
[code]......
I need to get a list of distinct names inside the data table and the sum of values for each one. I know some basic stuff about linq, but i don't know how to put the distinct and the sums together.
The SQL Query:
SQL
SELECT DISTINCT username,
[Sum1] = SUM(day1),
[Sum2] = SUM(day2)
[Code].....
SQL statements:
SQL = "SHOW TABLES;"
Try
conn.Open()
The remarked area works fine when I'm accessing a specific table. I've successfully inserted the products_model field into the combobox too. The datagridview does show the table names in the db using the SHOW TABLES sql statment, but I'm not understanding how to get this info into the combobox instead.
Using
Dim RXLIKEIT As New System.Text.RegularExpressions.Regex("(?<="">).+?(?=</a></td>s<td>)")
MsgBox("Did you mean't:" & (RXLIKEIT.Match(DL).Value))
How do i put it show more results than only one "RXLIKEIT"?
I am using the Math.Exp function in a calculation, and the result essentially is Infinity / 1 + Infinity, which is 1 statistically, but it is showing as "NaN" (not a number). Is there a way to calculate/show the result of this as 1 (besides just testing for NaN and explicitly setting it as 1?) [code] X is a number larger than 709.782712893 in order to get the NaN result.
View 18 RepliesI'm working on some coding katas and managed to finish the algorithms and am now coding it?However, I can't seem to get Command Prompt to display the result.
Here's the code.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
[code]....
i have a division of 2 integer that give me a result as2,3944534 ...how i can give e result as
View 3 Repliesi've been working on a project that works with a MySQL DB, and every time the SQL executes and adds the listbox items it wont show the first result i have no idea what i am doing wrong here.
vb.net
Dim NwConn As MySqlConnection NwConn = New MySqlConnection NwConn.ConnectionString = "server=XX.XXX.XX.XX; user id=XXXXX; password=******; database=*****;" Try NwConn.Open()
[Code]...
hope someone can give me a solution or if someone can tell me what i have been doing wrong.
I am trying to retrieve row data from a table in a dataset (dataset name is PatientsDataSet and table name is tblfacilitiesnames).
I am using VB 2008 but the code I entered is from a VB2005 sample so something must have changed in the format.
I am already connected to the database since it opens the connection when the program is run.
Here is the code:
Dim Counter As Integer
Dim Str1 As String
Dim FacRow As PatientsDataSet.tblFacilitiesNamesRow
[Code]....
im trying to retrieve a value from a session of List. wat i did is i created a new List of string and save it to a session... e code extract is sth like this
Dim count(5) As String
session.item("aCount") = count
how to retrieve the value one by one...
I have a situation to show response coming back from host in some control of a Form and want to print it.The response is coming from Host mainframe system in text based format. I want to show the response in a graphical format. I am looking for suitable control that help me to print and should look like word document. I looked PrintPreview and PrintDocument controls but my requirement is there should be some control on Form where my formatted output should be placed (like Rich Textbox). Which control I should use.
View 6 RepliesPublic Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code]....
The end result is baffling me here are 2 examples when I debug
Mine: 640.1 * 49 = 31364.9
Debugger: 640.1 * 49 = 31360 ( not right needs to show the correct decimal )
Mine: .775 * 3 = 2.325
Debugger: .775 * 3 = 2.325 ( shows it perfectly???)