How To Get A DataGrid Value To A Variable

Jul 31, 2011

I can get the datagrid to work, Which will only filter only one record which is what i require, I need the 'Ref'to equal what is in the Reference column of grid.[code]

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How To Define Datagrid And Chart Name As Variable

May 3, 2012

Is it possible to define a datagrid and chart name as variable? I'm planning to put the result into the predefined datagridview inside FOR and NEXT loop. I've been trying but getting different sorts of errors..

For i = 1 to 10

[Code]...

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Set Datagrid Colume To Array Variable?

May 9, 2011

I have a datagrid with 5 columes. I also have 5 array variables, Im looking to put Row 1----Columne 1 value into a[0], Columne 2 value into b[0]...

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VS 2005 : Get Datagrid Cell Into A Variable?

Nov 25, 2009

I am reading in a mdb table into a datagrid, and with a sql command I am able to pull up a row, but now I am trying to figure out how to get a particuliar "cell" value into a variable, how do I do that? Lets say I want length 87 how would I assign that to say this:

Dim x As Integer = (??Length 87??)

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Get From The Datagrid Or The Dataset The Data Of One Column In One Variable?

Oct 4, 2009

I have a table with two columns (id and number1). How can i get from the datagrid or the dataset the data of one column (number1) in one variable?

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Loop Through A Datagrid Column To Add Values To A Variable?

Feb 9, 2010

how to "loop through a datagrid column to add values to a variable

in VB6 it was something like:

do while not .eof
myvariable = myvariable + datagrid1.collumns(6)
loop

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Put Multiple Data In One Variable And Display It On Datagrid?

Apr 12, 2012

My problem is how can i insert multiple data? like ordering a producc, customer have many item.

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Bind An IEnumarable Collection To A Datagrid (items Of Variable Contents)?

Aug 11, 2011

While working with an excel file (.xlsx), the data I get from it is an IEnumerable(of Dictionary). When I bind this to my datagrid, I get the problem that I only see 2 columnsI've been tracing this problem and discovered that in the first row in the excel, there are only 2 values (cell C and D). I think the binding to datagrid looks at this first row to create its headers. This results in my datagrid only showing columns C and D.

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VS 2008 Error: Range Variable 'sender' Hides A Variable In An Enclosing Block Or A Range Variable Previously Defined In The Query Expression

Mar 25, 2010

I am getting the error:"Range variable 'sender' hides a variable in an enclosing block or a range variable previously defined in the query expression."for this

Imports System.Data.SqlClient
Imports System.Linq
Public Class Form1

[code]....

I can select any other item from the table without the error. "sender" has the same properties as "receiver" in the SQL table.

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Variable Error "Variable 'reader' Hides A Variable In An Enclosing Block"

Aug 23, 2011

I receive the error -

[Code]...

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Filter Records In Datagrid View And Show The Selected Record In The Datagrid?

Oct 16, 2011

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.

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DB/Reporting :: Open An Access Query In A Datagrid View And Then Be Able To Make Changes To The Datagrid And Then Save It Back To The Database?

Apr 15, 2008

What I am trying to do basically is open an access query in a datagrid view and then be able to make changes to the datagrid and then save it back to the database.When I try to save:

Me.BindingSource.EndEdit()
Me.TableAdapter.Update(DataSet)

It says that update is not a member of the tableadapter... Why is that?

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Datagrid Item - Searches The Selected Year Or Month In A Datagrid?

Dec 13, 2009

now i use acces as datasource to view the agenda in a datagrid and a combo box to select a year or month so i can find the selected month or year in the datagrid .how do i program it so that it searches the selected year or month in a datagrid

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.net - Datagrid Update Checkbox IsChecked On DataGrid.Refresh()?

Mar 20, 2012

I have a datagrid who's ItemsSource is a strongly typed IEnumerable object In this datagrid, I have a checkbox column, a price column, a part name column, and a 'total selling for' column. On checking the checkbox I need to update the total selling for column with the value in the price column. This part I have working, however, how can I get the checkbox to remain checked when this happens?

Private Sub UpdateSellFor(sender As System.Object, e As System.Windows.RoutedEventArgs)
Dim _CB As CheckBox = DirectCast(sender, CheckBox)
Dim _ID As Integer = _CB.Tag
Dim _PP = DirectCast(DG_PartsToSelect.CurrentItem, PartTyping).PartPrice

[code]....

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Datagrid Expansion - Datagrid In Form - Retrieve Data From My Sql

Jan 22, 2009

I placed a datagrid in my form which l retrive data from my sql. i am using oledb connection. if i run the form i can retrive the data but i am not getting the data in the grid at first ,there is a "+" sign, i have to clik that then it shows the table name and after clicking the table name i can view the data displays in the grid..

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Over Datagrid Erasing Entries And General Datagrid Access

May 9, 2009

I have a datagrid which I am using LINQ to fill, I then add some custom columns and fill them in programmatically - if the users clicks on the column header to re-sort, all the data in the added columns disappears. I am obviously missing something very basic here but can't seem to see the forest for the trees. I also have a couple of other questions about how I am doing things:

[Code]...

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Read XML Into Datagrid But Get Error Writing From Datagrid To XML File?

Oct 16, 2011

I am trying to create an xml editor that read and write xml. my code reads the xml with no problem and allows me to create new rows but when I try to "write" it over I get the following error: "Token StartElement in state Epilog would result in an invalid XML document"

here is my xml:
<?xml version="1.0" standalone="yes"?>
<MacroList identifier="test">

[code].....

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Write The Contents From A Datagrid To A File And Back Into The Datagrid Again Later?

Aug 24, 2011

I decided to rewrite my project. Hit another snag. How do I write the contents from a datagrid to a file and back into the datagrid again later? (Actually, I've done the writing ok - but for the life of me can't get the data back into a blank datagrid.

Here's what I done so far:

Imports System
Imports System.IO
Imports System.Text

[Code]....

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Cursor From One Datagrid To Another Datagrid With Have The Same Number Rows?

Jul 29, 2010

how to do cursor moving from one grid it effect to another grid.example Grid A and Grid B have the same number of rows. when I click current row on data grid A, the selected row on data Grid B also follow data grid A..

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Datagrid Checkbox - Print Row That Are Not Checked In Datagrid?

Mar 2, 2011

I am printing a files that are shown in datagrid.. But I want to choose a file that I don't want to print by checking the checkbox that I added in datagrid..

I have here the code for printing.. Anyone can edit my code that will print those file that is not checked.

Code:

Try
openMySQL()
Dim sql = "DROP TABLE IF EXISTS dummydisconnectionorder"

[Code].....

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Datagrid Control - Fill And Use Each Datagrid Indepentent From Each Other?

Jul 22, 2009

I have on my form two datagridviews that correspond to the same table. They are both databound. They have been created automatically through dragging them from the datasources windows.One is datagridview and the other datagridview1. When ever I navigate through a datagrid the corresponding row on the other grid changes as well. I do not want this. Also I want to be able to fill and use each datagrid indepentent from each other. To fill a datagridview on load I use this code

Me.AllServicesTableAdapter.workstation(Me.Database2DataSet.AllServices)This code does not let me choose which datagrid to fill.

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Program Function - Says, "The Type For Variable [variable] Will Not Be Inferred Because It Is Bound To A Field

May 18, 2012

Public Class Form1
Dim x, c, number(0 To 19) As Integer
Dim s As Integer

[CODE]...

The variables in the brackets [example] do not actually have brackets in them in the original code. These are where the issues are. For both variables, it says, "The type for variable [variable] will not be inferred because it is bound to a field in an enclosing scope. Either change the name of [variable], or use the fully qualified name (for example, 'Me.[variable]' or 'MyBase.[variable]')." Now, I'm not entirely sure if this is a stupid question or not, as I'm used to VB '98 because that's what we use in my programming class at High School. let me know why this won't work.

-Note: The intention of this program is to continually loop the generation of numbers for this list until I tell it to stop. Button1 ends the program, Button2 generates the list one time only, Button3 is supposed to loop the generation of the list, and Button4 is supposed to end the loop, but not the program.

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VS 2010 Compiler Creates New Variable Automatically When Use If Statement Without Strictly Declared Variable?

Jan 10, 2011

Say that i have the following code that parse about 20k records from the DB.

Code #1

vb.net While reader.Read()
list.Add(If(Integer.TryParse(reader(0).ToString, 0), Integer.Parse(reader(0).ToString), 0))
End While

And then another code which does the very same thing but it seems to be a little cleaner.

Code #2

vb.net While reader.Read()
Dim storeowner As Integer = 0
Integer.TryParse(reader(0).ToString, storeowner)
list.Add(storeowner)
End While

This is what i am confused about; does the compiler creates a new variable automatically when i use the if statement without strictly declared variable? What approach is better in sense of performance?

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Dynamic DataGrid - Dynamically "transform" DataGrid To Display The Selected Search Template

May 23, 2011

I have a search form on that will be pulling search template queries from a table in the underlying (an Access db on a share). The search form has a calendar control for filtering by date range, a listbox containing the names of the search templates, a second listbox which lists the fields in the selected template, and then some controls which show/hide themselves depending on which field is selected so that the user can pick a field and enter it's unique criteria in the appropriate control for filtering. Below these controls is a DataGrid, which will obviously display the results.

The problem is how to dynamically "transform" this DataGrid to display the selected search template. These templates do not represent tables in the underlying; rather they represent preconstructed SQL queries (stored in a table) which are essentially SELECT queries with joins and no WHERE clause (so they are the results of multiple tables joined together by their keys).

To be honest, I'm having trouble even generating the LINQ queries to represent these template dynamically, but that's not as important, since I can manually translate the SQL queries into LINQ. This is definitely not the preferred method, as the whole point of putting these templates in a table, rather than code, was to allow for future additions without rebuilding/redistributing the application interface.

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C# - Differences Between .NET 4 WPF Datagrid And WPF Toolkit Datagrid

Dec 28, 2010

what are the differences between the WPF Datagrid included in the .NET Framework 4.0 versus the Datagrid included in the out-of-band WPF Toolkit? I understand that the toolkit version was released first, and targets the .NET Framework 3.5 SP1.

I needed a WPF datagrid quick and have utilized the toolkit version in my applications. I'm considering moving the application to .NET 4.0 and am wondering what the pros/cons will be in changing out my existing datagrids for the new ones.

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Variable Naming Conventions To Illustrate Variable Type And Where Variables Are Declared

Aug 24, 2009

I am looking for a good resource on variable naming conventions to illustrate variable type and where variables are declared. So I will have public variables, Private variables, private or local variables. I also may want to declare variables with the same name in different class code (i.e. in the code behind different forms). I am assuming good coding would dicatate a prefix for declaration location.

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Import Text File : Object Variable Or With Block Variable Not Set

Mar 28, 2011

i have this error in the line of with xl.active......Object variable or With block variable not set.

Dim xl As Object
xl = CreateObject("Excel.Application")
With xl.ActiveSheet.QueryTables.Add(Connection:= _
"TEXT;C:Documents and SettingsUserDesktop429MEDICA2.TXT", _ Destination:=xl.Range("$A$1"))

[code]....

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Object Variable Or With Block Variable Not Set - From Property Get With Bindingsource.current?

May 31, 2012

Now I have the need to get a current value from a bindingsource in a property of a user control.In a previous thread I had tracked down the "Object variable or With block variable not set" to the return in the Get block of a property. At the time I was only using the Set so I just commented out the offending code until I needed it.

[Code]...

The error does not occur during a system compile, only upon saving the container object of the user control. As I said the Set works correctly, only the Get causes the error.I would like to know what I am missing/misunderstanding and am open to other suggestions of handling retrieving the current value of a bindingsource in a user control.

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Pass A Variable To Another Form Or Else Make The Variable Visible To Both Forms?

Sep 5, 2010

Using Visual Basic 2008 Express. I need to pass a variable to another form. Or else make the variable visible to both forms.

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Serialport VB2008.net - Input Variable And Output Variable Of This Terminal?

May 14, 2010

I am using vb2008.net express,I test vs2005term it work, can any tell me what is the input variable and output variable of this terminal?how to catch the input and output variable to a textbox1 for sending and a textbox2 for receiving when I press send button? is that possible?

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