I'm new to databases and am working on a database program. It was written in vb6 and im trying to rewrite it in vb.net. I've completely stripped the program down from all the unneeded fancy addons and now just have the needed code to run it.
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how can i add records from list view to database ex. im going to have a transaction i will add products as many as i ordered in my listview and then i insert it into my database with the 1 transaction number it should be like this:
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I am using a Class_SQL that gets the table, creates the DataAdapter and DataTable.I have a combobox named cboFullname. I can fill the combobox with data from the database, ie: Dim sqlcmdtext As String = "SELECT *, Firstname + ' ' + Surname AS Fullname From Contacts". I can display full records in a datagridview.
I would like to be able to select a name from the combobox and have the record text boxes display the data and be changed with the cbofullname index changed subroutine. Here is my current code to date:
Public Class frmMain Private Sub frmMain_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
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I am developing a Windows application in Visual Studio 2005, V2.0 using VB.NET. I am coding part of an Emergency Response Information System. On my form, I have two combo boxes (cboBaseStationID and cboPriority). I am trying to populate the datagrid with records from my database based on what is selected in both comboboxes.
For the first combobox, the user selects a name so the datagrid must only show records with that name. For the second combobox, this is a little more complicated. There are four emergency priorities in the combobox that the user can choose - 1, 2, 3, 4. In the database, there are different response teams (to be dispatched to these emergencies) and each response team has a grade of either 1, 2 or 3. [Code]
I want to insert records from a datagrid with multiple rows, into the database, is it possible?
View 1 RepliesSo I've been playing around with SQL strings in VB 2008, and trying to retrieve records from a database and display them in a data grid view. This is the part of the code that gets the fields and displays them in the data grid view:
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I have a datagridview with transaction bindingsource I want the datagrid to show the sorted rows only not all the records when i enter a value into a textbox and click button sort.
View 1 RepliesI am trying to fill my datagridview but I got an error, I probably missed out something in my code. The dataset gets filled allright, only when it comes to the line:[code]
View 2 RepliesI have a problem with filling a datagrid (DGV2) in my form. The code does not do what I desire.
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Dear forummembers,I have a problem with filling a datagrid (DGV2) in my form.The code does not do what I desire.
Dim I As Integer
ItemLoc Dim As Integer = -1
For I = 0 To DGV2.Rows.Count - 1
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I finally got this code to work after hours of toiling:
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Now that I figured that out I was going to try and place the data in a specific location. On my application I have a datagridview set up with 4 columns. What I would like to do is put column A of the excel file under the 1st column of the datagridview and column C of the Excel File in the second column of the datagridview.
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I need to read data from text file to datagrid. I have a datagrid with 3 columns: Column1, Column2, Column3. I have two columns in my text file, eache is separated by double space. I need to make so that column1 from text file goes to column1 into datagrid and colunm2 from text file goes to column3 into datagrid. Column2 in datagrid will be filled with values from OPC server. So i made a simple
Dim mSr As StreamReader = New StreamReader("C:VBpirm.txt")
Dim mLine As String = Nothing
Dim mArray() As String
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I finally got this code to work:
vb
Dim path As String = OpenFileDialog1.FileName
Dim myDataset As New DataSet()
Dim strConn = New OleDbConnection("Provider=Microsoft.ACE.Oledb.12.0;Data Source=" & path & ";Extended Properties=""Excel 12.0;HDR=YES;IMEX=1""")
Dim myData As New OleDb.OleDbDataAdapter("SELECT * FROM [Sheet1$]", strConn)
myData.Fill(myDataset)
DataGridView1.DataSource = myDataset.Tables(0).DefaultView
Now that I figured that out I was going to try and place the data in a specific location. On my application I have a datagridview set up with 4 columns. What I would like to do is put column A of the excel file under the 1st column of the datagridview and column C of the Excel File in the second column of the datagridview.
So replace:
vb
DataGridView1.DataSource = myDataset.Tables(0).DefaultView
With:
vb
DataGridView1.columns(0) = myDataset.Tables(0).columns(0)
DataGridView1.columns(1) = myDataset.Tables(0).columns(2)
Obviously this doesnt work, and something tells me I might need a for loop to import the data, but I have never imported information from an Excel file before and to make it worse I have never worked with datagridviews before so I have no idea how to go about this.
I would like to do something like this if I could:
vb
For x = 1 To xldoc.rows.length - 1
DataGridView1.Item(0, x).Value = CType(xlDoc.Cells(0, x + 1), Excel.Range).Text
Next
Im trying to fill my DataGridView with data where the Column "RefID" is equal to the tbRefID.text that is on the same form but its not working my code is as follows.
Public Sub New(ByVal lviQ As ListViewItem)
InitializeComponent()
Me.tbRef.Text = lviQ.SubItems(0).Text
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and the code for the FillByRef is
SELECT RefId, QuTask, QuCost
FROM quote_tasks
WHERE (RefId = 'tbRef.text')
all it does is add the 3 column header to doesnt add any data?
I can retrieve records from my Database fine, but I'm having trouble updating records. I am getting a syntax error on [code] I get this error when I change the Last Name (Row 0, Column 1). [code]
View 4 Replieshow to get records into oracle database delete from db & update the records i have successfully connected my vb 2008 win form with oracle 10g.
View 1 Replieshow to delete a record from datagrid, i tried the following code but it gave me an error in deleting records, I am using Mysql Database.
Following is the code:
Private Sub Button6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button6.Click
'recorddelete()
Dim sql As String
Dim db As New DBHelper
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I think problem is in this line, may be syntax problem:
sql = "delete from budget_details where ID = & DataGridView1.CurrentRow.Cells(0).Value.ToString()& "
How to delete a selected row from Datagrid.I have provided a delete button. I tried the following code, but don't know where it is going wrong.
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I think, problem is in this line:
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Like, while using SqlDataReader.read() it can only get 7 rows of a gridview.
I want to access more than 7 rows lets say 11.
heres the code i have been so far[code]..
How to use Datagrid in VB.net. I am about to configure the MySQL Records to the VB.net form having DataGrid. I am using Microsoft Visual Studio 2005 ; Database- MySQL 5.1; Form1 having DataGrid in it. Step by Step procedure to get MySQL Database output in the VB.net DataGrid from beginning to end?
View 1 RepliesHow can I design a datagrid that displays records and when one record is double-clicked, you can edit that record or when the datagrid record is double-clicked you can view the past history of that particular record in detail?
If you can view the "chart of accounts" in QuickBooks, then you will understand what I mean.
I cant figure out how to show the records from the datagrid to textboxes
View 3 Repliesim using this code to display records in a datagrid.. DataGrid1.DataSource = mycls.ShowData
mycls.Showdata is a function that in a class that i used to display data.. what i want is to create a progress bar that indicates the actual loading of the data to the grid.. cause it has some delay in displaying if data is to large..
I am looking to create one of these search engines with autofill function. I want to find the records and fill the datagrid with them from the database where combAC.text is like ...
I got this, but at the moment it doesn't find any records.
Private Sub combAC_Leave(ByVal sender As Object, ByVal e As System.EventArgs) Handles combAC.Leave
If combAC.Text.Length <> 0 Then
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I have a populated datagrid that has some fields that are needed for calculation in my app. In the dataset they are set to Allow DBNull False because I can't have a DBNull in my calculation for obvious reasons. I have found answers to incorrect data entry and blank fields in these critical fields (see code block below), but they only work if some data is entered somewhere in the new record, even if I populate the field with default values other than <DBNull> on adding a new row. If a user doesn't add any information and just tabs through a new record/row or cursors down the app blows up. If they cursor up without entering any data, the blank field procedure for these protected fields engages fine.
View 12 RepliesHere is the code which is working fine for me on another form but creating problem when i use the same code on another form it gives me this error message when i try to insert a new record in DB "Value cannot be null Parameter name: Data Table"
and here is the code
Imports System
Imports System.Data.OleDb
Imports System.Drawing
Imports System.Drawing.Imaging
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there is a datagrid in a form. i need, when a user hit tab in a particular cell, another form holding a list of records needed to be displayed, allowing the user to select one or more than one records, and after selection all those records are needed to get populated in the first datagrid.
View 4 Repliesi have a combo box that i'm trying to fill from a database, managed to get it working through the wizard and the form view method but could do the next bit that way. I then started to try it the coded way, got the database linked but it only shows the first name in the database, how do i get it to show all the names in the database?
this is the code for the form
Imports System.Data.OleDb
Public Class NewTicket
Dim ds As New DataSet
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I need a source code for filling SQL Table rows in a datagrid control using MFC programming in VC++. [url]...
View 2 RepliesI need a source code for filling SQL Table rows in a datagrid control using MFC programming in VC++.
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