.Net: Connect SQL Table To Programmatically Created DataGridView?
Dec 17, 2009
how to connect a SQL Table to a DataGridView that was previously created programmatically. Basically, at run-time the user names and creates several empty SQL Tables and DataGridViews. After that the user selects from a combobox the name of the SQL Table and DataGridView that they want to import data into, then clicks a button named "Import"...after clicking "Import" the user navigates to an Excel file, chooses a worksheet, clicks a "Continue" button and then the code successfully connects to the Excel import file and SQLBulkCopies the data to the SQL Table...next I need the imported data in the SQL Table update to the DataGridView...this is the part I can't figure out.
The challenge is the datagridview isn't hard coded it was created and named programmatically at runtime. So now the user selects the name of the SQL Table the data resides in and the name of the DataGridView from the combobox "moduletableCB" and I need the code to update the datagridview.
[Code]...
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Aug 13, 2009
I have a search page in my application where I am searching the database for the records that meet the specified conditions that the user selects. All of this works by creating the dataset, datatable, and dataadapter in the code. I then take a created bindingsource link it to the created datatable and then attach the bindingsource to my datagridview to display the results. Now what I am trying to do is to figure the Mean, Median, Mode and Standard Deviation of the results that were found above. My question is how to I run a select query on the code created table. I have the select query I want to use and when I try to use it in the code it talks about the connection. Now I have a dataset that is part of the project and I have the on just for the search page. Let me know if you need any code samples.
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Oct 26, 2011
I'm using VB.net 2005. I have working programs that I populate DataGridViews with something like the following:
[Code]...
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Apr 4, 2011
After searching Google, and finding only answers to XML indent, "just use Visual Studio's auto indent" and "that would be crazy to write your own auto-indenter" I've decided to come to the good place: StackOverflow.Question:
1. How do I add an 'indent' to a programmatically created file?I would be generating the files via the System.IO class / streamwriter, unless someone can tell me of a better way, I just want to generate a file from my asp.net page, a windows app or possible a batch file (well, maybe not this last one)... to generate a class file, such as Employee.vb OR EmployeeDAL.vb
[Code]...
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Feb 21, 2009
In my program it detects if there is more than one monitor connected. It then creates a form on each monitor screen and you just click on the screen that you want the program to run on.
Here's where I'm having a problem. Everything works great, but when I load my MAIN form how would I call those programmatically created forms? I can't just do frmYou.close.
Here's the code I use to create the forms.
Public myScreen As New Point
Public ScreenReady As Boolean = False
Public sX As Integer'holds screen x width
Public sY As Integer'holds screen y height
[Code].....
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Jul 13, 2010
Here is my code to programitically create a textbox on the fly
Dim a1_box As New TextBox
Me.Controls.Add(a1_box)
In another method I need to read the value entered by the user, but, a1_box is not a know item.
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Feb 22, 2009
Now everybody knows that creating GUIs that have lots of repeated elements that are evenly spaced by hand is for chumps; all the cool kids use loops and add them at runtime. Given that being one of the cool kids is one of my top priorities I decided to give this a go - as my current project involves creating a grid of check boxes and then chunking them together under one event handler. In my experience - an nice effective way of dealing with grid like structures (2D arrays if you will) is to use nested loops such as:
For intY = 0 To 9
For intX = 0 To 9
Dim chk As New CheckBox
[code].....
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Jun 10, 2011
I have programmatically created a listview in n # of tabpages to display information gathered from an SQL database.Once created, i want the user to be able to select an item from any of the listview's. How can i reference the selected item?[code...]
All i want is to know that when a button control is clicked, which item is being selected in which listview?
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Apr 24, 2009
I'm writing a scheduling program that queries a MySQL database for today's appointments and uses a Table Layout Panel with employees on the top and times on the left to display the schedule. I am trying to add another table ontop of that table for each appointment and set the rowspan of that dynamic table to occupy the time slot of that appointment from start to finish.ll the appointments appear in the dynamic table and each dynamic table appears in the appropriate starting positions in the main table. When you are designing GUI's and put a Table within a table, you get a RowSpan and ColumnSpan option for that inner table. The problem I'm having is the dynamic tables are not giving me a RowSpan option, which I believe is because it was created using code and doesn't know that it's inside another table.Here is part of the code... This code is inside loops for each appointment of each employee
sqlCustomer = MyReader.GetValue(0).ToString()
sqlCompany = MyReader.GetValue(1).ToString()
sqlProblem = MyReader.GetValue(2).ToString()
[code].....
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Feb 2, 2012
[code]....
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Sep 3, 2011
Say I have an object that I dynamically create. For example, say I create a button called "MyButton":
[Code]...
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Sep 11, 2009
I have code that refers to controls like buttons and labels and textboxes (obviously), but i want to create them programatically, how can i create a button or label that is on a form that has also been created programatically. Here is what i have:
Dim frmIndashone As Windows.Forms.Form
Dim vscPage As Windows.Forms.ScrollBar
Dim lblPageNum As Windows.Forms.Label
Dim txtVector As Windows.Forms.TextBox
Dim txtPageCode As Windows.Forms.TextBox
I am asking because i have a With statement that assigns different values to the different things that looks like this below:
RaiseEvent Load(frmIndashone)
With frmIndashone
.vscPage.min = 1
[code]....
But i am told on everyline of the second snippet that vdcPage, lblPageNum, txtVector and txtPageCode are not members of windows.Forms.Form, How can i make them members?
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May 7, 2012
I have programmatically created a new project from a windows application. I now want to programmatically add a form to this project that already has some data bound controls on it.
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Feb 17, 2011
I'm creating a textbox at runtime, which works fine, but now I need it to have a selection_change. How do I do that?
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Sep 2, 2011
my system is already working. I used VB.net and mysql. i used ODBC DSN to connect .net to mysql. however i would like my system to run in a Local Area Connection.
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Jul 28, 2009
I can connect to VPN and I can access Sql Server using RDP. Now, I want to access the Sql Server programmatically.
I connected to the VPN and then have the following connection string set up[code]...
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Jan 21, 2011
I have a drop down menu, and based on which item is selected, I call a web service and then dynamically create some text boxes.The first time I drop down the menu and select an item, it works perfectly, and the text boxes are created and populated dynamically. However, the next time I drop down the menu (after the first postback), and select something different..fter the second postback, the original values remain in the textboxes.
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May 3, 2010
how to connect my table like america and child table like State i want to add sub node or childto th tree view?
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Feb 27, 2009
I'm trying to connect to an Access table who's name includes spaces ('look Material Type').How do I identify this table in an OleDB string
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Jan 22, 2011
[Code] my issue is that now i need two cases, first i need a query that will return the date created and modified of the table and i also need to know if its possible to query a list of table names in the database ordered by date created but that have a certain thing in their names. for example the database contains the following tables: [Code] and what i need the query to return is the tables that contain "Data", settings and employees are for the other functions of the program. so the query should return the 4 data tables in order of date created. but i have no idea how to go about doing that in the query, does anyone know how this is done?
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Jan 9, 2010
I have a Microsoft Office Pivot Table 11.0 in my form in Ms Visual Basic .NET 2005. I've already succeed displaying the report. But what I want to do is customizing it. I want to be able to change the dimension or the field of the dimension by clicking a checkbox or something like that. How to do that programmatically ?
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Apr 15, 2010
I'm working in VB 2008 Express.
I have an MS Access DB with a Table setup with the columns that I need.
I have it linked into a form, with the requisite BindingSource, TableAdapter, BindingNavigator, etc.
On the form, I also have several textboxes linked back to the table. I can populate the table via the + (add new) button in the BindingNavigator and then filling in the textboxes (and saving of course).
Is there a way that I can put a button on the form and populate the table automatically? I want to do this via a textbox to control the number of records added - that way, I can put in an 8 and have 8 blank records added to the table via this one click (and don't have to enter the default info in for the 8 records one at a time).
I've attempted to do this by calling the BindingNavigatorAddNewItem_Click subroutine, filling in the textboxes and then calling MapBindingNavigatorSaveItem_Click subroutine, but this does not work.
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May 17, 2012
I'm trying to use a DataTable to get the schema of a SQL Server DB.But, when try to detect the ForeignKeys, the constraints collection only brings the UNIQUE constraints.
Private Sub ShowConstraints(ByVal tableName As String)
Dim table As DataTable = New DataTable(tableName)
Using connection As SqlConnection = New SqlConnection(GetConnectionString)
[code]....
How can I get the ForeignKey Constraints?
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Mar 29, 2012
I have a button which when pressed, sets the user's rights in the db. (If Administrator UserTypeID is set to '2' and if Customer it is set to '1'). However when I run the below code, everything remains the same. I think it's from the SQL statement but I;m not sure.
Protected Sub btnSetUser_Click(sender As Object, e As System.EventArgs) _
Handles btnSetUser.Click
Dim conn As New OleDbConnection( _[code].......
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Jul 18, 2011
i try to make SQL programmatically but in this site [URL] i can create the database and table name how to rename its from program ?this is my source code
Public Class Form1
Private ConnectionString As String = "Integrated Security=SSPI;" + "Initial Catalog=;" + "Data Source=johnson;"
Private reader As SqlClient.SqlDataReader = Nothing
[code]....
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Sep 13, 2011
I have two datagridview's both are databound. First one shows items for sale and the second stores all the items that were sold. I am trying too transfer selected rows from one to the other but no matter what I keep getting told "Rows cannot be programmatically added to the DataGridView's rows collection when the control is data-bound."
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Sep 27, 2011
i have a database that stores clients, categories and sub categories, what i am doing is creating a form that programatically creates tab pages on a tab control for each category and a checked list box with each sub category as an item. so that when the form is displayed it only shows categories and sub categories relevent to the client.
Dim tabpage as Integer = 0
ab.Open("select distinct category from etc etc", connectionstring)
While Not ab.EOF
TabControl1.TabPages.Add(ab.Fields("category").Value)
[Code].....
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Sep 16, 2010
I have the code I am using below. On 3.5 framework Access 2003 database vb net 2008
I already have the database created but need to be able to add Tables and fields with the correct datatypes. So far it's not working but i don't know why or where the error is.
Private Sub MDIParent_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Try
[Code].....
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Mar 10, 2011
How do you save an html table built programmatically in a .html file?
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Nov 2, 2009
Public Sub PopulateWaterRecords(ByVal dDateTo As Date)
'Populates the water record forms for each year
'Dim UserName As String = Membership.GetUser().UserName
[Code]......
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