Getting Cell Values Into Variables In DataGridView Based On Grid Coordinates?
Mar 20, 2011
Im working with a DataGridView with an imported CSV file where the values are delimited with (,).. The grid works perfectly fine. My ultimate goal is to hide the grid out of view from the user and access the data in the grid based on the coordinates of the grid specified i.e (The cell in column 5, row 6 contains the value "Taco") and I want to save that value to a variable...Eventually I want to loop through all the values of a column and save them to individual variables to be later used. So far, this is what I have...
Dim sReader As New StreamReader("book1.csv")
Dim Record() As String
For x As Integer = 0 To 17[code]....
Presently, that will only display the data in column 0, row 0 in those labels...
Note: 17 in the for loop is the amount of columns in the data i provided.. that number will never change.
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Nov 19, 2010
I have a DataGridView with 3 columns (metric_key, metric_name, metric_value).There are for example, 6 ROWS in this table (6 different metrics), added programmatically (DGV is not bound in any way)
Now, when I assign values in my grid I do:
dataGridView1.item("Metric_value",0).value = "value of the metric in row 0, in the column named "metric_Value".
[Code]...
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Jan 12, 2009
I want to make a certain column of my datagridview red based on values from 2 other columns. I have a "HI" column, a "LOW" column and a "Result" Column which are all strings. Now I want to make the result column red if it's values is less than the "LOW" columns value or if it's value is greater than the "HI" columns value. I tried the following code but something is wrong because cells that shouldn't be red are red:
Private Sub dgvTests_CellFormatting(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellFormattingEventArgs) Handles dgvTests.CellFormatting
If dgvTests.Columns(e.ColumnIndex).Name.Equals("Result") Then
Dim RowValue As DataRow = TestTable.Rows(dgvTests.CurrentRow.Index)
[Code] .....
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Jun 3, 2010
How can I get the selected cell left and top screen coordinates with datagridview. Basically what I am trying for is to include a combobox in the datagrid view. I don't know how to do it hence i want to just shift the combobox in to each selected cell>
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Nov 29, 2010
I want to translate MouseArgEvent.Location (x,y) coordinates into my custom graph coordinates. Mouse Y coordinates increase from top to bottom while my grid's y value increase from bottom to top. Given my following code, I would need to create 21,500 separate conditional expression for 100(y) x 215(x) possible coordinate locations for my grid.
Sub OnMouseMove(ByVal e As System.Windows.Forms.MouseEventArgs)
If e.X > 48 AndAlso e.X < 50 AndAlso e.Y > 397 AndAlso e.Y < 399 Then
MessageBox.Show("about 0,0")
[code]....
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Dec 2, 2010
I am trying to build a coordinates system but am having trouble with how to.. What I have sofar is a textbox that allows the user to enter a length. This length is user defined but never smaller then 610 in length since this is the minimum unit size we use to build timber frames. The overall length of a timber frame is infinite (well not really, but it is for what I want) the timber frame has beams every 610mm set apart from each other (this is a legal requirement) so I want my vb.net to set coordinates for each beam at intervals of 610 then write that coordinates system to a text based *.SCR file
[Code]...
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Nov 23, 2010
I'm trying to load several grids based on the Type values in my xml file. For example my xml file is in the following format:[code]How do I accomplish this when in the load event of my windows form?
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Nov 30, 2010
I am interested in finding out how I can add and extract cell values in open office calc using VB.net.
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Aug 25, 2009
I have a MySQL database which acts as a source for a datagridview, is there anyway I can set colors to the rows based on values in a cell? So that if the value in a row in the field "Priority" is "yes" then the row is red?
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Aug 30, 2011
I've been trying to customise a datagridview but no luck so far, thing is, i want some of the cells to not have the same grid colour and width as all the rest of the grid. Do you guys know how can this be done? I know it is possible cause i've seen it before but i have no clue how to accomplish that.
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Nov 27, 2009
I am using the DataGridView in Visual Basic 2008 Express with an Access 2000 database.
What I'm trying to do is allow the user to click on the Row Header and capture the contents of the 4 cells in the row to 4 dfined variables. I know that I can capture each cell individually by using the CellContentClick event but this would require the user to click 4 times rather then just once.
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Jul 3, 2011
How to change vb .net datagridview row color based on grid checkbox value. Having bound DataGridView. BindingSource as data source. called DGV. I m using this code under cell_formatting event
[Code]...
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Feb 4, 2009
I have a datagridview that's taking a while to load because my table contains almost 5000 records. How can I provide an easy way for clients to filter the grid based on a product name. I was thinking of having labels with each alphabet on my form and when they click a label it filters the bindingsource according to the chosen alphabet. this seems like an awkward solution though.
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Jul 20, 2011
Here is what I need to do: I need to be able to go through the cells in my first column and find any that have four digits (and only four digits). When a cell is found with a four digit number I need to be able to bold that entire row. How can I do this?
I'm in VS2007. This is a datagridview program. Data populates the tables from a database. The cells in the first column that contain the data can contain between four and 8 numeric digits. I only want to bold the rows that have cells in the first column that have four digits.
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Feb 27, 2009
My datagridview consists of Three columns.
1st column is Datagridviewcolumn
2nd column is datagridviewcheckboxcolumn
3st column is Datagridviewcolumn
so 3rd column i made as readonly.so i need to enable the 3rd column cell based on the checkbox check properry
so i am generating datagridview column dynamically and populating values in the datagridview dynamically.so my need is after populating the value if i check the check box the current row of the 3rd column cell has to be enabled. so how to do this. please show me some sample code if there any. please
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Apr 25, 2007
I have a DataGridView that has been dragged over from the DataSource Tab. All works good.I need to have the background color of some of the cells changed based on other columns in that same row. Such as, have the background color of a cell Red if the Status column (not shown) relates to 90 days overdue. The next row may be different.
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May 18, 2012
I am having a loading problem, the problem is my formating code takes way to long to load.
What I have is a datagridview that is loaded by one table and I want to format the cells based on data from another table, the following code works, but it gets slower and slower as I add more records to the data.[code]...
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Jan 9, 2011
how I can change the back color of a row based on a cell value using CellFormating event. The cell visible property is set to false.
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May 7, 2012
I have a SQL database, with some "status" strings. For every status I need to display a .bmp image .
I'm displaying the data from the database via DataGridView with LINQ. In order to display the DGV I have this code:
Me.MyTableAdapter.Fill(Me.TestdbDataSet.MyStatusList)
I was thinking to add another column named "Symbol" and based on the "Status" column to format the cells of the "Symbol" column to display an image.
I edited the DGV, and add a new image column.
I created a directory in my solution called "references" where I put all the .bmp files
I don't know how to do this. My first thought was to put an expression in the DataTable Properties, but I didn't manage to make that work. Another way is to format the cells in the "Symbol" column, and again I don't know how to do that. I tried with "Select Case ... Case ... End Select" with no success.
LE: Should I Insert the .bmp files into SQL database (varbinary(MAX)) If yes, how?
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Feb 6, 2012
I generate a DataGridView using the result of a query. The query generates a LOT of columns (more than 75). Obviously the DataGridView does not show all of them. I wrote a small procedure that extracts data from the DataGridView and generates an Excel file ora .csv file.
[Code]...
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Jun 2, 2011
I have a items in my database named as
product number | product name | dosage | description | price | remaining box(es)
0023 amoxicillin 50mg none 50 50
i am having problem in my buy button. how can i manipulate the value in the remaining box(es). for example, i select the item named amoxicillin, and i entered 5 on my textbox. when i press the buy button the value in remaining box(es) will be 45.
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Nov 29, 2009
I am trying to retrieve cell values from a datagridview.I am trying to use the DataGridView.Item().Value property to pull each cell value into a temp variable to it can be added up, but for some reason it is not accepting any variables that I use to count the rows, only integer values.Here is an example of the code I am using.
Dim tempVariable as Decimal
Dim i as Integer
Dim Total as Decimal
[code]....
For some reason it does not like the variable i, and only wants integer values.
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Jan 15, 2012
I followed the suggestion from [URL].. this thread. however i face a bit of a problem in my case i have a combobox at row(i).cells(0) the code seems to take the last new rows where there's not record and shows error the debug error msg is A first chance exception of type 'System.Data.OleDb.OleDbException' occurred in System.Data.dll INSERT into taken(typeID,quantity) VALUES (5,39)INSERT into taken(typeID,quantity) VALUES (,)
[Code]...
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Jun 5, 2011
I have a project due tonight and suddenly 2 of my datagridviews are acting funky while the others are fine.
I have 2 tables in an sqlce db. the first is books(id, title, copyright) and the next is publisher(id, name, bookid). I'm writing a vb.net frontend to access the data.
I have data bound datagridviews for both tables. Both have their respective ID columns hidden. The publisher dgv uses a combobox cell style to display the book title in the bookid column. So far so good.
I have suddenly run into a problem where if I have clicked in a cell on the books dgv and then click a cell on another row, the title changes to the id value. The publisher dgv also updates to show the id instead of the title.
It sounds to me like there may be a problem with the booktableadapter or bookbindingsource, but I don't know where to start looking for it. I have a 3rd dgv referencing an unrelated table, and it has no problems. The code for both the working and problematic dgvs are the same (only the control names are different).
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Jun 22, 2010
I have an excel file SpeedStudy.xls located in (C:/files). I need to extract specific cell values to be displayed in a DataGridView.
For example:
I need the value of Cell: B6 to be displayed in the DataGridView under the Road column. How can I retrieve cell values?
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Mar 15, 2012
I programmatically edit my datagridview cell values. I use the vertical scrollbar to find the row I want to edit, select the row then click an edit button that takes me to another form where changes to the record are made. I then click a button which saves the changes and returns me to the datagridview form. No problems here.
When I return to the grid, the records are displayed with the first record at the top of the grid. That is, the vertical scroll bar has repositioned itself to the very top.
Is it possible for the datagridview to "remember" the position of the vertical scroll bar so that when I am returned to the grid, the rows displayed are the same as when I left?
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Oct 6, 2010
This is bugging me. I have a "main" form named frmMain with a DataGridView object named objDataGrid.When a user double clicks on a row or clicks another button, I hide the main form, open a new form and want to reference the values in the row selected by the user but I keep getting an error when I try to access some, but not all, of the datagridview's properties.
[Code]...
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Dec 1, 2011
I need to display the column header and cell value of the clicked cell in the data grid. For example if I click Argentina from the country column, the text box will display country = Argentina.So far the code I have is, please help me figure out the code for displaying the information in the text box
Private
Sub
DataGridView1_CellClick(ByVal
sender As
[code]....
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May 16, 2009
I am attempting to copy the value of the TimeStamp in cell A6 which has the NOW() formula into cell A5 Based on a change in Cell A4. The catch is I don't want it to update every time the sheet is recalculated due to updating links in other cells on the sheet. ONLY when Cell A4 Changes. What do I do?
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May 4, 2011
I have problems trying to change programmatically the content of a cell of a bound DataGridView.I implemented a minimal piece of code to show the problem.Do the following steps to replicate the problem:
Launch example
Write the title content to create a new row
CTRL+C on inserted title
[code].....
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