My DataGridView sorts by date. For grins I entered the date 11-02-2010 fully expecting it to be at the bottom of the list, not listed right after the last 11-02-2009 row and before the first 11-03-2009 row.How do I handle this so that come January 1, I won't see all the 01-01-2009 rows listed first followed by the 01-01-2010 rows then the 01-02-2009 rows, etc?
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I have three sub tables that I want to process. For each I want to combine the rows, as they are only different by contents in the second column(I want to do the same to the fourth column, later):
'Sub table 1
xx|C201 |02300877 |Samsung |....
xx|C201 |02300877 |Toshiba |....
xx|C213 |02300877 |Samsung
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p.s. For the fourth column, Manufacturer information , I want to do the same and I'd probably get something like this for the final table:
xx| C201,C213,C606,C619 |02300877 | Samsung
xx| C201,C213,C606,C619 |02300877 | Toshiba
xx| C303, C305,C712 |02301163
xx| C207, C209, C708 |02301165
Can anyone tell me why "Rows cannot be programmatically added to the DataGridView's rows collection when the control is data-bound." I keep getting an error "Invalid Operation Exception was Unhandled" error. All I am attempting to do is allow the user to select products from a list(or a second datagridview) and have it added to the datagridview so they do not have to type in every cell since the other cells are not visible because they do not purtain to their needs. Plus they will be able to save all items at the same time.
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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."
View 2 RepliesI am working on Treeview control and Gridview Control VB.NET08. In the Treeview i have Parent and Child Nodes. Like:
- 31
3101
3102
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I am working on Treeview control and Gridview Control VB.NET08. In the Treeview i have Parent and Child Nodes. Like: [Code] Comparing the Parent Node text and first two digits in the Column values. I want to add rows inbetween the gridview rows based on the parent and Child Nodes. If i expand the First Parent Node Called "31" then according to the Number of Child Nodes (for first parent node(31) there are 5 child nodes.) add rows in the gridview.
These New rows should be add under the 31-xxxx. If i expand the 32 Parent Node based on number of Child Nodes, add rows under the 32-xxxx. [Code] I am getting the rows in the end of the Gridrow not in the Specific row.
How would i delete only the successful inserted rows for insert and then move the non successful rows up and allow the user to correct the data and get it ready for an insert. If i dont delete the successful rows then i will have multiple inserts of the same dataRow and we dont want that! AND if i dont move the data up then it will have blank rows uptop and will end the try and not insert the corrected data. You can better see what logic i am trying to perform at the bottom of my code, right after I insert into the database. Here is my code.
Private Sub btnLaserGenerateTicket_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLaserGenerateTicket.Click
'Function declarations
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when populating a data grid i keep getting a redundant row in the bottom. is there a way to lock grid rows to the number of rows in the data table?
View 1 RepliesI am currently using DevExpress 10.2 within Visual Studio 2010. In a previous question I was trying to print the current user view of a DevExpress GridControl with the user's choice of expanded or collapsed master rows and/or group sections. I was told this was not possible at this time. I have now decided to use the following code:
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How would i delete only the successful inserted rows for insert and then move the non successful rows up and allow the user to correct the data and get it ready for an insert. If i dont delete the successful rows then i will have multiple inserts of the same dataRow and we dont want that! :) AND if i dont move the data up then it will have blank rows uptop and will end the try and not insert the corrected data. Here is my code.
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Public Shared Function isMatch(ByVal username As String) As Integer
For i As Integer = 0 To table.length - 1
Dim cellValue As String = table.getRow(i).getCell("Alias")
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I have the code listed above as a translation from a Java snippet. The problem i have is that in Java, my table was stored as a dataset and as such, the methods were easily identifiable by "getRow" and getCell" using specific numbers and column names. However in VB the information is stored in an MS Access database (which i already have an open connection to, called: "_SalesPerformance_AnalyticsToolDatabaseDataSet12") and as such i do not know the correct way in which to iterate through each row in the database, checking a specific column against an already specified variable and then returning an integer based upon the value of a seperate column in the same row.
'Invoice Form
Dim daInvoice As New OleDbDataAdapter()
Dim dsInvoice As New DataSet()
Dim MyDataTable As DataTable
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Error...
Rows cannot be programmatically added to the DataGridView's rows collection when the control is data-bound.
I have an Excel sheet that looks like this.
View 1 Replieshow to add Rows programmatically to the DataGridView's rows collection when the control is data-bound? here is my code but i got error as "Rows cannot be programmatically added to the DataGridView's rows collection when the control is data-bound? "
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Dim _tableBackLogs As System.Data.DataTable
Do While i - 2 > 0
_tableBackLogs = Global.DataAccess.GetDataTable("SELECT SubjectID,SubjectName,Grade FROM SubjectPI WHERE RegNo='" & CInt(HttpContext.Current.Session("userName")) & "' AND Status='Fail' AND Semester='" & i - 2 & "'")
i = i - 2
Doing this replaces the previous data in the DataTable. I want to retain the previous data i.e i want the new rows to be added to the DataTable w/o replacing the previous rows.
I have a datagridview, and I want to get an array of rows, or rows indexes in which boolean column "Aktywny" is set to True.Obviously I can Do it using loop, but LINQ will be much faster for sure...
View 1 Repliesmerge two rows in to one row from many rows below is data example:
id Date AccessType Empno CardNo
1 |04-03-2012 07:23:42 AM | Door Access Granted | 150512 | 8543183
2 |04-03-2012 09:37:05 AM | Card Exit Granted | 150512 | 8543183
3 |04-03-2012 11:08:07 AM | Door Access Granted | 150512 | 8543183
4 |04-03-2012 03:20:32 PM | Card Exit Granted | 150512 | 8543183
5 |04-03-2012 07:47:09 AM | Door Access Granted | 150506 | 8234333
6 |04-03-2012 09:37:03 AM | Card Exit Granted | 150506 | 8234333
I have a datagridview that is bound to a datatable (created by dataset designer) with columns RowID, CreatedBy, UpdatedBy and some other columns for actual data.Every time a user updates a row in datagridview, I will need automatically to populate UpdatedBy column with the user ID.Every time a user adds a new record in datagridview, I will automatically populate CreatedBy with user IDI use CellEndEdit event to check whether RowID is Null to determine the row is a new row. This means I have to set RowID AutoIncrement = False. Doing this way will only allow users to add 1 row at a time before they get duplicate row exception due to 2 same RowID.
View 1 RepliesIt was even difficult coming up with a Question title for this.
Am not sure whether am using the right approach to my problem. See i have this datagridview that contains rows that i would like have saved back into the Database as new rows but with a column altered to a new value.
Eg
PKColumn1 FKColumn2
Column3 Column4
1 1
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What am looking at is Change FKColumn2 (some foreign key, maybe i can also have a combo box somewhere on the form and an "import to") values to something like 2 and save the rows back to the database without loosing the original rows.
I have a csv file. I need to open it, delete whole row on basis of a column value, Update few of the column values and save the file as .dat file. I am using VB.net 2010
View 1 RepliesI have a form that i want to be saved to my database. The form is adding a new record to my sql server 2005 database but it is not bringing the text over with it. The new record in my db is just an empty row. Here is my code.Add to database section ( i have removed the connectionstring for privacy reasons)
<%@ Page aspcompat="true" Debug="true" %>
<html>
<head>
<title>Form to database</title>
[code]....
I have a fair bit of experience with VB.NET and C# (In this case I chose VB.NET, blame my laziness), but I do most of my professional work using PHP. I have no experience what so ever in using any database with VB.NET let alone MySQL.Just FYI, at the moment I am only trying to Query the database to gather the information required to activate. The Activation wizard and algorithm building (which is finished anyway), and everything else will come soon. I chose the MySQL database because I have experience with it, and it seems the best option for remote usage.The whole idea already works in PHP, I'm just have major issues moving it accross into VB.NET (Using the MySQL Connector.NET);I understand the basics, and all I need to know how to do is Count Rows and gain access to the other information in a row based on provoided information (in PHP, through mysql_ result)
So, here goes nothing, this is the Query code I am using in PHP to complete the job I want to do in VB.NET. [code] As you can see, I basically need to get the PHP code into VB.NET to fit into the 'btnQueryDB.Click' Command in VB.NET. By Equivalent, the Product ID in VB.NET will come from 'txtPID' and similar, Serial Number will come from txtSNUM. Once counted to be 1, the Activation Code and Status will be fed into 2 other text boxes in the form. (acCode, and acStatus).
I'm trying to display some data in my combobox, the strange thing is that the combobox displays all data that has 4 four columns (I only want to display 3 columns out the four) but its not displaying rows that only have three columns?
For example
Text File
Column1, Column2, Column3, Column4
I only want to display columns 1, 3 and 4 so I use the following coding
For Each Line As String In System.IO.File.ReadAllLines(Path)
If String.IsNullOrEmpty(Line) Then Continue For
Dim Columns() As String = Line.Split(New Char() {" "c}, StringSplitOptions.RemoveEmptyEntries)
If Columns.Count < 4 Then Continue For
Combobox1.Items.Add(Columns(0) & " " & Columns(2) & " " & Columns(3))
Next Line
But some of the rows only have
Column1, Column2 and Column3
Again I only want to display column1 and column3.
I have a datagridview and im using this code fill the table from a txt file.
Private Sub PopulateDataGridViewFromTXT(ByVal SFileName As String)
'Variables to store the count of rows and columns
Dim nRows As Long
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All that long list(more than 2000items) is loaded into my datagridview which have two columns named "ITEM" and "ID" With the code above the item from the id is splitted to each seperate column.I want to press a button and filter the table to show only swords for example or only spears.And the other thing is to make a search button to search for a specific item,which i suppose if the first thing is doable the second will be peace of cake..
I am filling my dataset like this.
Public Function FetchData() As DataSet
Dim oConn As System.Data.OleDb.OleDbConnection
Dim oComm As System.Data.OleDb.OleDbCommand
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on my form i have a GridView with add/edit/delete rows disabled, i need it to show blank rows for the unused size rather than blank background.
View 1 RepliesI have a datagridview extracted from a csv file. It displays duplicate rows. How can I delete those duplicate rows from the datagridview? replies would be precious.
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i am in new dreamincode.net i am trying msflexgird bottom fixed rows vb.net 2010 how can i solve the problem
View 4 RepliesI am trying to insert an initial line (0) into a datagridview (named params). The program will then read each cell in that row, pass them through a function and return values be placed into the next line (1). This will continue until one of the parameters reaches some set point. The problem that I am having is that when I try to insert a new line, it appears above the initial one and not below it like I would like it to.
Here's my code so far:
Private Sub HurricaneWinds_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim init_xrange() As Double = New Double() {0.0, 0.0, 0.0, 40.0, 0.0}
For i As Integer = 0 To 4
params(i, 0).Value = init_xrange(i)
[Code] .....
So I am writing a program that uses ArrayA(10) and ArrayB(10) and uses Do loops to output the sum of ArrayA(1) + ArrayB(1) in one column then the difference in the next column, then the product in the next column, then the quotient in column 4 of a Matrix(10, 4) in a listbox. And continues doing this until there are 10 rows of 4 columns. I was wondering for tips on how I can get this done.
View 6 Replies