I have a mature VB6 program that depends heavily on flexgrids for the display.It appears that DataGrids are somewhat of a replacement for flexgrid?I need to update individual cells over and over and I don't see how to address a single cell. Appears to me that most samples are tied to a database which I don't have.If I set up a datagrid that is say 3x3, how do I read and write from and to say the center cell?
View 2 RepliesIs it possible to change the forecolor if individual cells depending on its value (for instance changing from Navy to Red if negative in currency columns?
View 1 RepliesI am developing an application in vb.net 2008 express edition that displays utility meter information. In one column of datagridview it shows the meter type in numeric code. When the user hovers over the the individual cells in meter type column i want to be able to show more descriptive info on what that numeric code actually means.
As an example the cell in datagridview will show 1254 the actual description for this numeric code is "Landis Gyr Focus AX SD 2S 7.2Kh"
Below is my code so far, every other aspect of application is working except for above.
Public Class Form3
Private Sub dgv1_CellMouseEnter(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles dgv1.CellMouseEnter
[Code]....
Is it possible to give individual cells in a data grid view row different styles such as backcolor, fontcolor etc?
I do not mean giving the whole row a new style, only a specific cell.
I am having trouble with automatically filling a table in word from a asp.net app - i use bookmarks in the next top row to determine what data should be inserted into the columns of my tables. However, i am having trouble in getting the individual cells bookmarks and get all the bookmarks from the row instead. This is fine if i have one bookmark in each column as i can use the 3rd bookark and assume that is from the 3rd column, but if i were to have 2 bookmarks in one column, how would i know which column it was that contained the 2 bookmarks?Here is my code that returns all bookmarks for the row even though i am selecting a single cell; and therefore using bookmarks(1) - always the same bookmark(the one in the leftmost
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I have a DataGridView (not data bound, not editable) that displays a bunch of data. I want to draw rectangles around some of the blocks of cells to set them apart visually. For example, I want to draw a red border around the block of cells from row 3 colum 2 to row 6 column 3 so that there is a red rectangle around the 8 cells.I've found how to paint rectangles around individual cells or rows, but I can't work out how to do it for a block of cells.
View 10 RepliesI want the user only to be able to select rows and not individual cells in a VB.NET DataGridView. Is there a way to make this happen? I don't see an option for the DataGridView object to control this via properties.
View 2 RepliesMy main goal is to have an excel spreadsheet that automatically plots the overall success of my stock portfolio over time (% change over time). I've been able to incorporate stock data into my spreadsheet by linking it to the web, but the trouble is the spreadsheet will keep no history of what the previous stock values were, so I can't graph how things change over time. This sounds like it might be too complicated to be built in to excel, so I was wondering if anyone knew how to program this in Visual Basic. Maybe something like this.... If refresh then new cell plus new time stamp. Another possibility would be to have a whole bunch of cells that refresh only once but at longer and longer intervals, e.g.,
[Code]...
I am having dificulties taking a datagrid cell value stored in the following location (datagridVNTPSorted.Item(15), irow).Value) into individual digits to reassign values for counters.
The cell in the datagrid (Listed Above) contains a number between 1 and 5624. I have 4 different counters. If the number was "2856", the counters would need to be updated as follows:
intdirectoryCountDigit1 = 2
intdirectoryCountDigit2 = 8
intdirectoryCountDigit3 = 5
[Code].....
1. How can i disable a cell of datagrid in vb.net
2. How can i show current date in datagrid cell
i have used this peace of code on form load event
[code]....
Im using this code to populate a datagridview:
Private Sub PopGrid(ByVal Filename As String)
Dim ConnectionString As String = "Driver={Microsoft Excel Driver (*.xls)};READONLY=FALSE;DriverId=790;Dbq=" & Filename & ";"
Dim Con As New OdbcConnection(ConnectionString)
[code]....
But when i look at the grid, there is alot of empty cells that is NOT empty in the excelsheet.
I'm trying to write an alarm clock application. When the program runs, a clock is displayed along with an 'Alarms' button. If the user presses the 'Alarms' button a new form opens with a datagrid with 2 colums, 'Time' + 'Message'. What I want to do is have the user enter a time and a message. The tick event should check the times entered in the datagrid, and when it reaches a time entered, the appropiate message is displayed.The problem I am having is how do I extract data from the cells of the datagrid. I want to compare it with the current time but am unsure how to do it. I've attached my sample code so far which just declares a time on the main form and shows message when time is reached.[code]
View 1 RepliesIm trying to colour cells in a datagrid depending on the value of the cell. Ive got a situation where I the 1st time the grid id displayed the coluring doesnt work, but then if I refresh the grid the colouring does work.
[Code]...
I'm extracting data form a mysql using a huge query made up of three unions to searc on different tables for a telephone number. e.g. contacts, leads, etc.Iy workd perfectly in a sql tool and is well tested.When I run the query in visual studio, I get a result, two columns contaon the same image you get when a webpage image link is boken. These columns should contain a mobile phone number and an ID.Both are stored on mysql as varchars.No data is presented for these columns even though it exists with gaps
View 3 Repliesi am having some problems running some code when there is a cell within my datagrid selected.is there some code i can use to deselect any cells that are selected within the datagrid?i have looked into this and tried, but nothing seems to do the right trick.
View 1 Repliestell way to get: KEYPRESS event in the cells of DataGrid ?If user enters numeric value in Quantity, it would calculate & give result in Rate.How can I fire KEYPRESS event in cell
View 3 RepliesHow can we disable a cell of datagrid in vb.net and how to show date in datagrid cell in vb.net
View 3 Replies1. How can we disable the cells of a datagrid???2. How can we show date in a cell of datagrid???I have used this peace of code on for load event
View 6 RepliesI 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]....
I want my users to enter some data into a bound DataGridView (dgv) and when done to have the program fill in some columns (hidden key) and to populate some cells in the same row according to the data entered - like max of several cells.
Can I use DataGridView RowValidating to update cells? Or is it just a Cancel or not issue?
What would be the correct way for me to fill in hidden key information and to calculate some cell values?
My main goal is to have an excel spreadsheet that automatically plots the overall success of my stock portfolio over time (% change over time). I've been able to incorporate stock data into my spreadsheet by linking it to the web, but the trouble is the spreadsheet will keep no history of what the previous stock values were, so I can't graph how things change over time. This sounds like it might be too complicated to be built in to excel, so I was wondering if anyone knew how to program this in Visual Basic. Maybe something like this.... If refresh then new cell plus new time stamp. Another possibility would be to have a whole bunch of cells that refresh only once but at longer and longer intervals, e.g.,
Day Stock value
1 refresh at Day 1
2 refresh at Day 2
3 refresh at Day 3
etc..
The code below updates all cells in a DataGridView column to a value from a textbox. This code works in that all cells in the desired column are updated on screen. The DGC is bound to a dataset. The problem is that when I call the dataset .Update method, sometimes the first row (row 0) does not get updated. I have run SQL profiler and can see that no SQL update command is submitted for the first row. The first row only gets skipped the first time the update is run after launching the app. Subsequent updates run for all rows, until the app is re-launched.
I have verified the row state is Unchanged with: Msgbox(DataGridView1.Rows(r).State.ToString).
The 2 commented lines below are other things I have tried that still cause the first row to be skipped.
Private Sub btnUpdateAll_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnUpdateAll.Click
If IsNumeric(Me.tbUpdateAll.Text) Then
[Code]....
So, I am already able to successfully import an excel file to sql server through my vb application BUT I want to automatically change a value in a certain column to another. To expand on this, my excel file has a column that lists test titles such as "WCOB 1120 Access Test". I want to have each specific test title changed to a number. So, "WCOB 1120 Access Test" would need to be changed to '1' before it is added into my database.
Public Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Dim myPath As String = sFilePath & sFileName
Dim ExcelConnection As New System.Data.OleDb.OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source='" [code].....
I can edit the values in the dgv cells manually, add rows, delete rows all without problem and then update the database.My problem is in one form where I want to allow the user to filter the rows in the grid and then enter a value in a textbox and programmatically update all the cells in one column with that valueI can update the rows, and see the changes in the datagridview. When I try and update the database (using UpdateQuery on the underlying TableAdapter of the datagird) only some of thechanged rows are being updated I though it might be related
View 9 RepliesSo I have a code atm that has 2 combo boxes, one to select the make, then it will enable the model, I have 3 model choices, here's code: [code] Once I have selected my model of the car, it takes me to that specific form with a picture of that model, I then want to display individual parts, with individual prices that will add up in a text box above.
View 2 RepliesI have a DataTable and want to connect the cells of one of its columns to cells in some other DataTables.
For example:
DataTable1.Rows(0).Item(2) is connected to DataTable2.Rows(4).Item(6)
DataTable1.Rows(1).Item(2) is connected to DataTable4.Rows(2).Item(3)
DataTable1.Rows(2).Item(2) is connected to DataTable3.Rows(11).Item(4)
...
How can I do this?
I have a issue with updating a row in a DataTable. I can initially create and populate the data table. But I am unable to update a row. I have found examples of datatabe connected to database ETC. Looking around I see reference to LoadDataTable but I can not find a way to make PmaDataTable. LoadDataRow() work.[code]
View 6 Replieshow to update the sql database from the gridview without having to add a primary key to the table,like when the user finishes updating the datagrid it will go delete the sql table and replace it or read with the adapter and fill the rows i cant find a way for this its not making sense to me i wrote a code i am sure its all wrong i am trying to return all rows values from datagrid
For i As Integer = 0 To DataGridView1.Rows.Count - 1
For Each column In DataGridView1.Columns
For j As Integer = 0 To DataGridView1.Columns.Count - 1
[code]....
I have a form that contains a datagrid control. This form call another form and from that form i change the datagrid caption property. When i show the form that contains the datagrid, the property caption it have not changed. But if i give it the focus the property is updated. I After change the property value call the refresh method on the datagrid, But that not update the datagrid display
View 2 RepliesI have a general ledger branch file mtn. form in vb 2008. I am using a datagrid that is bound to an sql 2008 table using a dataset. In the grid I am allowing the user to update 6 of the fields in the table. The table also has a date last changed field. Who do I get the date last changed field changed to the current date for only the rows in the grid that have changed?
View 1 Replies