i would like to know the syntax for this.i wanna add the values of 2 cells and then i will display their total in textbox.i have been trying to use datagridview.rows.cells but i cant just use it to add to cells values.
View 2 RepliesI want to multiply or add the values of two or more cells in a datagridview control in a row and and should also be auto-saved in the database after entering datas in the cell. I am using SQL Server 2008 for my database. do take a look at the screenshot attachment that I made for further details..
View 4 RepliesDim cmd As New SqlCommand(SQLSTR, conn)
reader = cmd.ExecuteReader()
Dim myDataTable As New DataTable
[code]....
i hve the follwoing code by which i bind the data to the grid the grid has 4 columns PRODUCTNAME, QTY,RATE, AMOUNT the user shld be able to edit the data in the column qty for as many rows it has but i m not able to edit this column how do i edit the values in the cells of column(1) ie qty?
[code]i need to read data from specific cells and assign them to other cells.
View 4 RepliesThe problem is my first' row cells values are their owner's column header text.
Ex.
-----------------------------------------------------
ID | FirstName | LastName | Address |
-----------------------------------------------------
ID | FirstName | LastName | Address |
[code]....
I am new to VB.NET and I am trying to read a line of data from a .csv file. For some reason the line of code below is returning "System.__ComObject", why? I verified that the cell contains "4/8/2011 9:20".
Me.cv_wks.Cells(i, "G").ToString
I have a datalist in vb web form.How can i get the value in a specific rows and cells of a datalist?I could do it for detailsview but how to do it for datalist?Below is my code for detailsview: Dim selectedCommentAns As String = DetailsView.Rows(0).Cells(1).Text.I tried the same way for datalist but it dont have rows and cells to be selected.[code]
View 3 RepliesI want to retrieve the value from example Cell C4 and dim it as String and then retrieve Cell D8 and dim as string etc.
View 2 RepliesI'm using VB.Net's Excel component to read Excel file, but the performance is totally slow, since it has to loop through cells to get values. Reading a file containing one sheet with 1162 rows and 105 columns (which is small size compared to my general requirement) already costs more than 5 minutes.1. I want to ask if any of you have suggestion on reading such an Excel file with better performance, except OleDB, cuz most compies here have vesion problem?2. Is it normal that it tooks a long time for Excel component to read Excel file, or is it that I implement the code in a wrong way?
View 7 RepliesI am looking for an elegant datatype and method to handle this problem below in Java or dot Net environment (C# or VB.net)It is a (r x c) matrix of numbers (integers). The 1st column values is a 1D array (range of numbers). The 2nd column takes a different range of values for each of the 1st column value (so, its basically a 2D jagged-array). The 3rd column has a range of value for each pair of 1st and 2nd column values.(when the 1st and 2nd column is fixed with a value, the 3rd column takes a range of values). The number of columns is not fixed and depends on the user input. It can go up to 20 or even more
How do you handle this problem efficiently in java or C# or VB.net.I am linking an image to the equation that I want to program. , in-which C and S are some constants. i=1,2,3...r (number of rows) and k-1=0,1,2,3..c (number of cols). The range of R(i,k-1) depends on maximum and minimum values and MAY also depend on previous values from R(1,k),R(2,k)...R(i-1,k-1) according to the equation. The initial known values are fixed integers (not in a range) for R(1,c), R(2,c),...,R(r,c)
i wanna compare my cells in datagridview. I have a datagridview with n columns and n rows. I have my datagridview row value as Time . I need to compare all the row cell values with one particular time.
Here you go with an example.
if my dgv is filled with time values such as 3:42:10 AM 4:43:17 PM etc..I need to compare all the cell values to 5:00:00 PM. greater than condition. I need to highlight only the values which are greater than 5:00:00 PM but less than 3:30:00 AM.
I'm current in college and working on some computing coursework and putting the finishing touches on it when i stumbled across a bit of a problem.I'm trying to compare two cells in a database and i use datagridview to display the database in my form. The database is created by sql commands within my actual program if that makes any difference. What i have created for my coursework is a program that manages the stock and such for a small music shop and in the stock table im trying to compare values in two different collumns, but in the same rows. I need it to display a message box in the event that the value in the one cell is less than the other, which is basically checking if the stock for a certain CD has fallen below the reorder level.
View 1 RepliesI have 3 column Qty,Price and Amount and i need to compute the amount per line using DataGridView, what are the possible events I may use?
View 1 RepliesI am usinb VB 2010 How can I count the number of cells in a row.
My datagridview currently holds 10 numbers in each of 3 rows
The number of cells grows and I would like to be able to count how many cells are filled
All cells must contain a number
I'm trying to fill a DGV from a (List Of).. This is my code. It's not working & I don't know why..
Public AllBooks As New List(Of Book)
Public dgvInventory As New DataGridView
Private Sub BookDetails_Load(ByVal sender As System.Object, ByVal e As System.EventArgs)
[code].......
I have a datagridview and I want to click on it BAD to jump to 4 cell, but to walkwith the arrows is normal, I did this because the KeyDown / UP does not work becausethe cells are in Edit Mode:
Private Sub DataGridView1_EditingControlShowing (ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewEditingControlShowingEventArgs) HandlesdgvContactos.EditingControlShowing
Dim EditingTxtBox The TextBox = CType (e.Control, TextBox)
[code]....
I'm completely newbie and I have been trying to solve a problem that is strongly related to what you guys had discussed here .
I have a datagridview (datagridview1) on my form and it is not linked to any database. I'm only trying to programatically enter values into the rows of the grid by values that my program generates.
For example if the value that my program generates is x, y, z then I would like to say something like[code]...
Get coordinate of any cells in datagridview?
View 8 RepliesIs the following grid layout possible with DataGridView in VB.net? Kind of similar to html table layout. I'm adding data cell by cell. However I'm not sure on how to get the layout for Group A & Group B Cells.
-------------------------------------------------|
| Item11 | Item12 | Item13 |
|-----------------------------------------|
| Item21 | Item22 | Item23 |
GroupA |-----------------------------------------|
| Item31 | Item32 | Item33 |
|-----------------------------------------|
| Item41 | Item42 | Item43 |
-------------------------------------------------|
| Item51 | Item52 | Item53 |
|-----------------------------------------|
GroupB | Item61 | Item62 | Item63 |
|-----------------------------------------|
|Item71 | Item72 | Item73 |
-------------------------------------------------|
when looping through the cells of each row in a datagrid... I am trying to get the cell type...
wheather it is a checkbox or not... and if the checkbox is null... then set it to false...
in my datatable, i've defaulted the value to false, but seems to have not effect
I want how to merge cells in DataGridView?
View 1 RepliesIs there any way to retrieve data from certain cells of a Datagridview?
View 3 RepliesI want to select all cells from datagrid for doing futhur operation. I had use following code but it read only one selected data from datagrid .
DataGridView1.SelectedCells.Item(0).Value
read all data from datagrid cells
I need to represent different 4 (max, maybe 2 or 3) colors to the user in datagridview control @ VB.NET. An example cell would be:
---------------
| Blue | Red |
--------------- <<<- A Cell
| Gray | Blue |
---------------
i need to split a cell to different size or counts. I know merging cells is possible, is opposite-merge possible?
How do I add the cell on my datagridview? I am not sure how to do that but I have four columns which I want to add the cell on 3rd column on my datagridview.
DataGridView1.CurrentCell.Value("test").ToString()
VB 2010 i am trying to add an image to the first column cell in each row. The second column rows will show text.
ie so i will have a picture in col 1 then a text reference in col 2, of each row.[code]...
Im using vb2010 express. I have a datagridview in my form. All my cells in the datagridview has a "sunken" cellborder. When mouse is over a cell, i want to change the cell border of that cell to "raised". I tried lots of thing, but i havent suceeded to change just "one" cell's border.
View 3 RepliesI used this example to create a DateTime column for a DataGridView in my winforms app. [URL]I can see the new column in the Windows Forms Designer and add it to an existing DataGridView. However, I want to be able to change the display format when I change the "DefaultCellStyle" within the designer. The designer generated code looks like this:
[Code]...
I want to multiply or add the values of two or more cells in a datagridview control in a row and and should also be auto-saved in the database after entering datas in the cell. I am using SQL Server 2008 for my database.
View 32 RepliesI want the column/cell of my Datagridview to accepts double(1500.50). I declare the cells as TextBoxCell.
'In dgvw_EditingControlShowing event :
AddHandler tb.KeyPress, New KeyPressEventHandler(AddressOf txtColDgvw_Keypress) 'Calling the Keypress of TextBoxCell Private Sub txtColDgvw_Keypress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs)
Try
[code]....
It does not accept Double Or I cannot type a point(.)...