I need to display a column called Full Name in a DataGridView, but the DataSource (datatable) does not have a FullName column. It only has FirstName and LastName columns. I'm setting up my DataGridView like this:[code]How can I set the DataPropertyName to use data from both the FirstName and LastName columns in the datatable.?
View 2 RepliesHow can I make the datagridview contains 1 row? Because I have a toolbar that have two button (forward,backward) and I need the datagridview to be single row because each row is a record in The DB. And when I press the forward button I will go to the next record. And btw, which is better this way or make the datagridview display all the records at once?
View 7 RepliesI have a DGV with a single row that I want to update with new data in a timer. What is the best way to do this? Would I just update each cell in the row individually when the timer fires?
View 3 RepliesIn previous versions (VB.NET 2003) I would do
datagrid.datasource = dataset.tables(0)
datagrid.datamember = "Column1" 'Where this is the name of the column
This would show me just that column in the grid regardless of the number of columns in the dataset.
In VB.NET 2008 I do: datagridview1.datasource = dataset.tables(0)
I see all the columns.I then add:
datagridview1.datamember = "Column1" 'Where Column1 is the column name
I then have an empty grid.How does one get only a single column to show in the grid from a multi-column data source? I am using internal code to populate the datasets and tables.
I am developing a new project for my daily office use using access database with vb 2005.
In this project I have one bounded datagridview and it is ready to use.
I want to alter a particular field value in the datagridview regularly. so whenever I click the rowheader that particular field should be editable with a combobox with some value, after selection of the value and leaving that particular cell it should be updated with the appropriate record in the database.
I'm using Visual Studio 2008 and SQL Server 2008 and Crystal Reports.
Windows form with datagridview and a printbutton.
Is it possible, if I select a record in the datagridview, to print that record when I click the printbutton?
the datagridview seems more complicated the I thought it would be my problem is: how can I if I added three columns to my datagridview, let the program insert something with 2 variables and in the last column i would have to do some calculations with the column2 (like the sum of all rows in column2)
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is it possible to force a DataGridView to be single row only?I cannot set the AllowUserToAddRows to false as i need one row.I cannot re size the grid to display a single row as i need the horizontal scollbar.
View 4 Replieshow to make a single column of a datagridview into currency format?
InventoryDataGridView.Columns(5).Name = "inventory_cost"
InventoryDataGridView.Columns(5).DataPropertyName = "inventory_cost"
InventoryDataGridView.Columns(5).Width = 70
InventoryDataGridView.Columns(5).HeaderText = "Cost"
InventoryDataGridView.Columns(5).???
I am filling datagridview with data from SQL server 2008 R2. one column is date which is stored in the data base as yyyy-mm-dd and when i retrieve it displays in the same format. I want to change the display to dd-MMM-yyyy.
Try
Connect_Design_Document_Record()
Dim cmdDrawing As New OleDbCommand("SELECT DRAWING_NO, DRAWING_DESCRIPTION, DRAWN_DATE, REVISION_NO" & _
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I have a DataGridView with two columns defined like:
Dim col As New DataGridViewColumn
col.DefaultCellStyle.BackColor = Color.FromArgb(&HFF)
col.Name = "Description"
[code].....
I have a datagridview with data in it, i have set it so you can only select the row and one at a time.However, i need to get the data from one of the cells in the selected row, i have tried this
View 2 RepliesI have a single form with a datagridview on it showing values from an oracle database. I am trying to set up a way of detecting if the row/column I click on is empty or not, just as a little exercise. I have so far got this:
Private Sub DataGridView1_CellClick(ByVal sender As Object, _
ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) _
Handles DataGridView1.CellClick
Dim c, r As Integer
c = e.ColumnIndex
r = e.RowIndex
[Code] .....
The message going into lbl2 shows the co-ordinate values of any box I click in but as you can see with the IF statement below I am trying to see if the system can detect whenever I click in a value that is empty (null or ''). When I run my form and populate the list with a column of names I can click in 0, 0 cell and I get a message saying the 'Box is not empty' as above.
But when I click in any of the next boxes e.g. (1,0) (2,0) etc I get this:
'Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index'
Pointing to this line of
If Not DataGridView1.Item(r, c).Value Is Nothing Then
Not sure what this means at all. I am under the impression that my piece of code is gathering the value of the item depending on the co-ordinate values. so why should this fail? What index/collection is VB talking about?
How I can change the back color of a single cell of a datagridview in runtime?
View 1 RepliesWith the DataGridView I'm used to just populate them with a list of some object, using the DataSource property. Now I want to just display properties from a single object, and I'm a bit confused on how to do it.. The object is updated through an API event, and I want to select some of the properties for displaying in the DataGridView, to look like this:.where "ValueX" is the name of the properties.Now, what would be my options for binding this to the DataGridView, such that property changes are automatically updated. Since an update also must invoke the control, does that mean I must reassign all bindings, or what logic is necessary in this case?
should I bind to an array, arrayList, stringList, dataTable etc? I guess I'm not sure which type of source will allow binding. Or if I should perhaps build the columns and cells of the grid and populate them "one-by-one" to the properties of the object?
How can I populate a single DataGridView cell with input of a textbox after click event of a button?
View 6 RepliesSay I have a code with 3 methods that do some pretty intensive work. Would executing these methods on 3 seperate threads be faster then executing them one after the other on a single core cpu? And what if it's a dual core or HT?
View 8 RepliesI am trying to make a list, separated by a comma, of entries from a single column in a SQL database. I have been spending the last several days searching for a way to do this, but every thing I found either didn't work, or wasn't exactly what I was looking for.
The query will pull all the email address that are not null. What I need to know is how to take the result of that query and make it look like this:
email0@address.com, email1@address.com, email2@address.com, etc, etc, ...
I feel like I should know this, but for the life of me, I can't remember nor can I find it in any of the textbooks I have.
I am using Visual Basic 2010 and SQL Server 2005. I also have access to Visual Basic 2005 if needed.
I use SqlParameters when executing database statements. I know that I can replace a single quote with two single quotes... but in the past SqlParameters took care of this for me. I have two projects.. in one, the SqlParameter does this and it handles single quotes fine, in another, it does not and I'm at a loss why (I even copied and pasted the code):
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I am trying to use the DGV to view various properties from a variety of different class instances. Is it possible to bind each cell individually?
View 9 RepliesI am trying to update a row or a single cell in ms access through vb.net. But when i update the text box named NRIC, say for example i want to update "s4522147B" to "tr4521856C" and mean while leaving the other fields the same.
But the thing is when i make the changes in nric.text (textbox), the dataset actually updates the whole column in the table instead of the selected textbox.
Below is my code for the update part
[Code].....
is there a way to set a single cell as a combo box? it looks to me that you can only set the whole column.
View 5 RepliesI have a few problems i need to solve. Firstly, I am looking for a piece of code i can use to display a picture from a bank of pictures. It will work on the basis of generating a random number and loading a picture that corresponds to that number.
i.e. Dim RandNumber As Integer
Dim RandClass As New Random
RandNumber = RandClass.next(1, 10)
If RandNumber = 1 Then
Picturebox1.image = picture1
[Code]...
Secondly, can I then use subsequent picture boxes to display pictures from the same bank of images, without displaying the same image? Finally, I then need to be able to click the picture or a button beneath the picture to select it as an answer to a question and then the whole process starts again.
I am trying to get back a single from from a EF database model using the below line of code..
Dim _classRoom As classrm = db.classrms.Select(Function(b) b.Course_ID = _CurrCourse.course_ref)
Where classrm is the name of the entity and db is declared as a new entity. What I am trying to do is select a row from the entity based on matching Course_ID which in this model is a string. So that I can later use the variable _classRoom to get other items out of the same row.. However I am getting the following error:
Unable to cast object of type 'System.Data.Objects.ObjectQuery`1[System.Boolean]' to type 'Trial_Online.classrm'.
I have to preform similar tasks with several different Entities but if I get pointed in the right direction I can manage from there...
Compile app to a single exe
View 1 Repliesi can get a single value from a worksheet using vb.net and excel.q)How do i get a range of values eg A2 to A5 and print them out eg with a msgbox. I know i can use the cells command but i want a range command where specify excel cell range.
'MyString = XL.Cells(4, 1).Value MyString = XL.Range("A2", "A5").Value 'error MsgBox(MyString)
I'm trying to get a single value from my table in a database. They are all given a unique id when stored. Here is the code I use to put the in:
[Code]....
That was so you could get an idea of what I was looking for, I'm not looking for sql statements, I don't know how to use them. Just keep in mind, this is all vb.net/asp.net.
[Code]....
I'm wanting to compile my project to a single exe so that I can add it to a flash drive and be able to run the program without having to install anything.
View 4 RepliesIn VB.NET: If varShort is a Short and varBit is a value from 0 to 15, how can I set the bit in varShort identified by varBit without disturbing any of the other bits in varShort? My problem, of course, is with the most significant bit, bit 15. Since varBit is determined at runtime
View 2 RepliesPlease provide any affordable solution for packaging a VS 2008 deploy to a single *.exe.
If the solution also encapsulates and protect viewing then all the better.