VS 2010 Select A Specific Cell In A DataGridView?
Jan 5, 2012
I am making a program which remembers my last selected row in a data table. I have done this by adding a column with a CheckBox, upon CellClick the CheckBox is checked, and upon ellLeave it is unchecked and the new cell is checked, after every action a Update command is run. There will never be more than one row with a checked cell in the DataGridView,however, the data table is in a relationship with other tables, so there may be more checked cells in the data table itself. My problem now is selecting the row with that cell when I open the program and when changing between other data tables and back again.All solutions I found on selecting a specific cell in a DataGridView are referring to index numbers, and in my case I need it to find a data value in a column, I do not know the specific row, only that one row contains the value of True while everything else is False.
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May 6, 2012
I have code that downloads a webpage into an .html or a .txt file so I have the webpage source code, how do I:Search the HTML source code in the file for a keyword anchor point (Hair Color, it's unique in the entire webpage source code)Step down 3 linesAssign what ever is on that line to a variable called FoundIt?
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Aug 28, 2009
I'm just startet to work with datasets, I have configurated an SQL server 2008 to host my databases. the server works fine also over the internet. I am making some SQL test applications, to learn how to use SQL and datagridview.my problem is how can i select a specific cell in my dataset and datagridview. When i know the name of the column and the row that holds the specific cell that i want to select by click on a button
my datagrid look like this
name | price | color | company | left
______________________________
[code]......
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Nov 18, 2009
How to select one cell and mulitple cells in a table using the webbrowser control. E.g. If the web page (local) that I'm viewing in the webbrowser control has tables present in it. When I click on a cell in the table I want to be able to edit the attributes of the cell like adding an align or a class attribute. I think this is possible without using mshtml which I'm trying to avoid as I can't find much user friendly documentation on it.
The text in the webbrowsercontrol is loaded with the foll:
WebBrowser1.DocumentText = Form1.RichTextBox1.Text
So I am guessing that I need to be able to detect when a cell is selected (<td></td> tag etc) or clicked on and then from that point I can edit the attributes of that specific cell (<td class="jimmy"></td> tag etc).
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Jan 18, 2012
I have to pull out particular fields from cells in an HTML table. Using Firebug I was able to get the exact XPath to the cells I need (unfortunately, the cells don't have an id tag). I thought I could use DocumentNode.SelectSingleNode and pass in that path, but it doesn't seem to be working right. What am I doing wrong? Or is there a better approach to this than how I am doing it? Unfortunately, I have no experience with XPath so this is turning out harder than I expected it to be. Here's what I have so far (I know the HTML is particuarly messy, but that's not in my control to change):[code]
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Nov 19, 2009
Does anyone know how to select one cell and mulitple cells in a table using the webbrowser control. Eg. If the web page (local) that I'm viewing in the webbrowser control has tables present in it. When i click on a cell in the table I want to be able to edit the attributes of the cell like adding an align or a class attribute. I think this is possible without using mshtml which I'm tryign to avoid as I can't find much user friendly documentation on it.
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Jul 6, 2011
i want to know the value in the specific cell,let say there has 3 columns and 3 rows,i want to know the first column and second row cell value in datagridview that bind to a database,can? i want to use that value to to something.(*the cell is not the selected one)
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Oct 22, 2009
I am using a datagridview as an input device. I am using a subroutine to check for errors. When an error is found is there a way to set the focus to the specific cell in the datagridview where the erro has occurred?
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Jan 22, 2010
Using vb.net. How I lock a specific cell in the DataGridView (not a complete column)?
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Feb 20, 2012
I'm using a search code using a textbox then it lists the record on a datagridview if search is successful. After the search, the user could select the record on the dgv in which later on can be edited or deleted. Edit and delete button is disabled when nothing is selected on the record. What I want to know is how to trigger an event to make those buttons to be enabled when a record is selected. By the way my datagridview is connected to my textboxes. My question goes something like this, but this is totally wrong.
dgvStud_CellClick = Nothing then
btnEdit.enabled = true
btnDelete.enabled = true
End If
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Jul 24, 2010
i have a datagridview of four columns, i'd like to enable the selection of just one column and disable the rest.
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Jan 23, 2007
Im having a little trouble setting focus on a row in a datagridview. When a user presses the Enter button in my datagrid, a sub is called and the window is closed. Now next time i display the window, the selected cell has moved one row down. This is because when you press enter in a datagridview it jumps to the next line (wich i really dont want it to do). Now then in my forms shown event i placed the code: Datagrid.rows(0).selected = True Now this highligts the first row when the window is displayed, but when you press the down key, it jumps to the third row, because even though the first row is highlighted, its the second row who has focus (because it jumped their after pressing the enter key) How can i set the focus on a specifik row in the datagridview in vb2005?
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Sep 25, 2009
I have a main form with a DataGridView populated from an Access Table.So far so good.When the user clicks on a row a small form pops up and the the user can enter/edit for 2 specific fields .After that hitting the save button an update query ensures that the data are written back.Because the base table is big i don't want to refresh the dataset (at least i don't want to have the user wait for a good amount of time for a simple change.......this is acceptable only when the application is starting) and i thought given the fact that the changed data are just a few words to "edit" the datagridview cell i want so that it displays the changes.BUT i can't do that.As soon as the 2nd form where the user enters the details the DGV from the main form is unaccessible.When i try to get access to it i have a nice message "Reference to a non-shared member requires an object reference."I tried to make a object reference but nothing ...
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Dec 12, 2011
I want to set Color to specific cell in DataGridView as in this code , but didn't accept BackColor property.
Form1.DataGridView1.CurrentRow.Cells(3)......BackColor
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Aug 28, 2010
How to select Row by givieing cell value in datagridview
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Nov 30, 2010
I'm trying to focus input and fire the editing event on each new row that I add to a DataGridView in my form.[code]...
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Jun 24, 2010
I have a dgv with 14 columns.
If i'm in dgv.item(8,0) in edit mode What code can i use to jump to (12,0) and also enter editmode.
I call it editmode, dont know what the actual term is . Its the state where you can enter a value into that cell
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Oct 20, 2008
I need to display a list with 2 columns and "n" rows (first column will be an IP address and second column the status - say connected, failed, etc).The case is that I need to be able to SET and GET the value of a certain cell. For instances, if the user click the first row of the list (row 0), I want to be able to get what is the intersection 0,0 (IP of first row) and intersection 1,0 (status of first row) and so on.I am trying Listview and Datagridview with no success.
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Feb 29, 2012
I'm looping through rows in a datagridview, and selecting a cell from the 3rd column each time:
Dim customer_name as String
For Each dgvr As DataGridViewRow In myDataGridView.Rows
customer_name= dgvr.Cells(2).Value
'....
next dgvr
However, I'd really like to make it dynamic, in case a new column gets added to the grid, so that I need the 4th column, not the 3rd. I'd like to use the column's header text. So something like...
customer_name= dgvr.Cells("Customer").value
Can this be done?
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Mar 11, 2012
I want to be able to delete records from my database and have this piece of code to do so:
Dim myConnection As SqlConnection
Dim myCommand As SqlCommand
Dim ra As Integer
myConnection = New SqlConnection("connectionstring'")
myConnection.Open()
myCommand = New SqlCommand("DELETE FROM player_table WHERE player_ID = 1", myConnection)
ra = myCommand.ExecuteNonQuery()
MessageBox.Show("Player Deleted")
myConnection.Close()
But I want let the user actually select one of the cells displayed and delete that.
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Apr 26, 2011
I am filling a DataGridView from a table in SQL Server 2008. There is one column that is a string which contains either "YES" or "NO".When I run and display the DataGridView it displays perfectly. For the User's benefiy, if the field contains "NO" I want to put some emphasis on it by changing the fore color and back coler of the entire row. In the DGV the index for field is (4).I tried this code which threw an error on the word "value" inthe block that fills the DGV.
IF DGV,Columns(4),Value="NO"....
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Apr 24, 2012
I am using a list<of T> as a data source for a datagridview and would like to handle the draw event of the datagridview to evaluate the string length of the column cell. If larger than a particular number then I would just do something like
cell.value = string.substring(0,(whatever number I need it to be)).
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Jul 24, 2011
how could I get the text of a specific cell in a DataGridView control ? If it matters , in my case , all the cells contain strings or nothing . For example , in order to get the text from the cell on row 2 and column 3 , what code do I have to use ? I have tried the Value property but seems that's not it . I've found some examples on the web ,but they were all for C# ... I guess , though , it has to be easy .
[Code]...
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Jan 13, 2012
As I have no idea on how to retrieve access data at the specific location in the table, so I wrote VBA code t export the entire access database to a datagridview which is located in the form1. There's a column of datagridview contain complete address information of a image. I'm thinking a way to link image source (of form 2 or xaml file) to the the column so that the image will be displayed. is there any code to get cell value at the specific location in the table? In excel VBA, sheets("Sheetname").Cells(rownumber, columnnumber).value is used to get the cell value, but how about code for this case?
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Jun 12, 2008
I would like to know how i can programmatically select a row of a DataGridView that contains a specific value in the first cell of that row.E.g, I want to click a button that selects the row of my DataGridView where the first cells of that row contains the number 3.
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Aug 18, 2009
i want to select the row on datagridview and send it cell's value into textbox / label control on the same form..but it seems not work, but when i use
Private Sub DGV_CellClick(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DGV.CellClick
it can but i have to choose by click on each cell on it datagridview..what i want is i only have to click on it[datagridview] row but i get all value on it's column.. so i can parse/send it value into textbox.it only can be clicked with single row i knew it by DataGridView1.SelectionMode = DataGridViewSelectionMode.FullRowSelect
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Jan 4, 2011
I'm using something call ultragrid in my program.The program works as a mini-record keeping area (Like any datagrid, really). Well, I am adding a history to it and it allows the user to see the last 50 records searched. They get a grid showing the records. This, thus far, works perfectly What I want to do is this: I want to select a record (A cell) in the column 'Dog and have the text of that cell appear in a textbox. This is what I've tried with no success.
HTML
Private Sub HistoryTextBox_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles HistoryTextBox.TextChanged
If ugHistoryButton.ActiveRow.Cells("Dog").Selected = True Then
[code]....
It just doesn't seem to want to transfer over when I select the cell in the 'Dog' column.
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Jun 26, 2010
I'm reading a cell value from a Datagridview, and this works fine in other projects, but not here?
HTML
Dim OldGUID() As String = Nothing
Dim X as Integer = -1
For X = 0 To Me.DGView.RowCount - 1
If Me.DGView.Rows(X).Cells(0).Value.ToString IsNot String.Empty Then
OldGUID(X) = Me.DGView.Rows(X).Cells(0).Value
End If
Next
It fails on the line: OldGUID(X) = Me.DGView.Rows(X).Cells(0).Value
with: NullReferenceException was unhandled - Object reference not set to an instance of an object.
The Cell has a string value and during debug I see the value, but it fails anyway.
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Apr 29, 2011
I have a one column DataGridView that I use to display data from a database.Is it possible add a command button to one of the cells in that column? I don't want a second column as a DataGridViewButtonColumn. I want the rows containing the database data and the command button row in the same column. Also, if that is possible, I don't want the button's width to be the same as the column's width. Is it possible to manually set the width property?
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Jul 12, 2010
I'm adding values to a datagridview programmatically (no dataset) according a value in a combobox. In one of the cells (cell is always the same) a hyperlink is displayed. How do I change that particular cell to a hyperlink-cell? If possible of course.
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