in my tableadapter query i have a count function "COUNT(PRIMVENDOR)" to give me the number of rows in each group by:
SELECT VENALPHA, PRIMVENDOR, [GROUP], COUNT(PRIMVENDOR) AS GrpCount
FROM ViewCurrentMasterFile
WHERE (PRIMVENDOR = @VenNum)
[Code].....
[code] In above code, the value of dgvColor.Rows.Count is zero. Not sure what i am missing
View 9 RepliesI have a datagridview that is bound to a dataset by dragging it onto a windows form. I want one of the columns on the datagridview to be read only for existing records (rows), but I don't want it read only when the add new icon is pressed on the navigator. How can I tell when a row is being edited as opposed to being added?
View 2 RepliesI add several unbound columns to datagridview,i've succeeded to copy data from other datagridview to this unbound dgv and also got save database from unbound datagridview to database using tableadapter.insert worked .But i can't figure out how to display the data back into the datagridview with existing column..I've tried using this way :
Try
Dim cn As OleDbConnection = New OleDbConnection_
("Provider=SQLNCLI;Server=.SQLEXPRESS;Database=salon;Trusted_Connection=yes;")
cn.Open()
[code]....
i have windows form datagridview that is already populated with data, what i want to achieve is to count cells with particular value in the grid.
here is what i have done so far;
Dim cellvaluescount As Integer = 0
For Each cell As DataGridViewCell In recordGrid.CurrentRow.Cells
If cell.Value.ToString = "Absent" Then 'if cell value is Absent
[Code]....
I am using VS 2005. My que. is that how to add column into datagridview at runtime?
View 3 RepliesI am attempting to develop a Gradebook that one can use to modify grades and have an average calculated at the end.When you first open the form, you see the database fields in the DataGrid (socSecNumber, firstExam, secondExam, finalExam)I have a button to save the changes made here. The exam grades are null in the database.This seems to work fine, however I have a problem with the calculated column I want to add. I want it to display the socSecNumber and the average for that student. Instead, I get all four fields in addition to the semAverage field. Also, all the grades come up 250 if I fill all the fields in with 100.[code]
View 2 RepliesI have a readonly datagridview that is bound to a datasource. It has two columns. Now I want the first column to have no cell borderstyle; and the second one to have 'All' (i.e. all sides of the cell shall have a border) as cell borderstyle. Before binding the datagridview to the datasource, I'm writing something like mentioned below but it's taking no effect. Assume the column in question is named DisplayName.
Code:
Dim newStyle As New DataGridViewAdvancedBorderStyle()
With newStyle.Top = DataGridViewAdvancedCellBorderStyle.Single
.Left = DataGridViewAdvancedCellBorderStyle.Single
.Bottom = DataGridViewAdvancedCellBorderStyle.Single
.Right = DataGridViewAdvancedCellBorderStyle.SingleEnd With
DisplayName.CellTemplate.AdjustCellBorderStyle(newStyle, newStyle, True, True, True, True)
I have a readonly datagridview that is bound to a datasource. It has two columns. Now I want the first column to have no cell borderstyle; and the second one to have 'All' (i.e. all sides of the cell shall have a border) as cell borderstyle. Before binding the datagridview to the datasource, I'm writing something like mentioned below but it's taking no effect. Assume the column in question is named DisplayName.
Dim newStyle As New DataGridViewAdvancedBorderStyle()
With newStyle
.Top = DataGridViewAdvancedCellBorderStyle.Single
.Left = DataGridViewAdvancedCellBorderStyle.Single
[Code].....
I have a readonly datagridview that is bound to a datasource. It has two columns. Now I want the first column to have no cell borderstyle; and the second one to have 'All' (i.e. all sides of the cell shall have a border) as cell borderstyle. Before binding the datagridview to the datasource, I'm writing something like mentioned below but it's taking no effect. Assume the column in question is named DisplayName.[code]...
View 2 RepliesHow can I count Total of column from datagridview and show results in textbox Using VB 2005!
View 1 Replieshow to change this Linq to Entities (VB.Net) query to Group by L2_ID column and aggregate the calculated column diff as Sum for the group.
[Code]...
For example at run time if i wanted column header 4 bold is this possible?this bolds all the column headers
Me.DataGridView1.ColumnHeadersDefaultCellStyle.Font = New Font("Tahoma", 8.25, FontStyle.Bold)
I've got a window with multiple datagridviews. Each with data from a separate dataTable. All of which are part of the same DataSet. There are a couple of places where one DataTable has a field joined with the lookup dataTable from the dataset. For example a lookup table for LugSizes has a field called LugSize that is also it's primary key. Another table called Device Terminations has a field called LugSize to which the user can only select those values from the LugSize lookup table. I thought it would be as simple as using the Items.Add method for the combobox column whenever a new lookup table row was added to its own datagridview. Unfortunately, when I try to initially clear the items list, the data error event is triggered for every row.
Here's a sample of my code if it helps:
HTML
Private Sub FillLugSizeComboBox()
Try
If colDTLugSize.Items.Count > 0 Then colDTLugSize.Items.Clear()
[Code]....
I have a readonly datagridview that is bound to a datasource. It has two columns. Now I want the first column to have no cell borderstyle; and the second one to have 'All' (i.e. all sides of the cell shall have a border) as cell borderstyle. Before binding the datagridview to the datasource, I'm writing something like mentioned below but it's taking no effect. Assume the column in question is named DisplayName.
[Code]...
I have a data bound datagridview. I want to be able to have column 3 default value is = 0, column 4 default value is = 1 and column 5 default value is = 0. How can I do This. I just dragged the table onto the form visual basics data source panel. I have 20 different colums some have 0's, some have 1's adn some ave 2's. While entering the data, well it takes
[Code]...
I want to Sum of the calculated column Red which is calculated in the Function IsRed() that return an integer.When I run the query I get the following error: Method 'Int32 IsRed(Int32)' has no supported translation to SQL.How should I rewrite this to get it to work.
[Code]...
i have data coming from sql server with two columns like total items, total packed items. Now in datagridview i want to show another column to calculate %age.Total Packed Items / Total Items Is it possible to add calculated column in datagridview?
View 4 RepliesI have a DataGridView that call a stored procedure. One of the fields is a calculated field, ie Quantity * Price.When I run the stored proc on the server, the calculated field returns a result that shows 2 decimal places to the right of the decimal point. When I run the stored proc in the VB application to fill the DGV, the result in the calculated field shows up to 8 places to the right of the decimal place. Is there a way that it will show only 2 places in the application?
View 3 RepliesI have added a column to a Datatable called CallsPerDay which is there to tell me how many telephone calls have been made on a particular day or days.Is there a datacolumn.expression which will allow me to Filter on the day, count the rows and then populate this added column with the result.
View 1 RepliesDataGridView1 is bound to a sql table. Cells(0) and (1) come from that table. Cells(2) and (3) are calculated. While debugging the code, the calculations and lookup look fine, but the results will not display in the columns. Here is the code:
Dim SeatsUsed As Integer = 0
For Each r As DataGridViewRow In DataGridView1.Rows
Try
[code]....
I'm trying to create a LINQ query (or queries) that count the total number of occurences of a combinations of items in one list that exist in a different list. For example, take the following lists:
CartItems DiscountItems
========= =============
AAA AAA
[code]....
The result of the query operation should be 2 since I can find two combinations of AAA and BBB (from DiscountItems) within the contents of CartItems.My thinking in approaching the query is to join the lists together to shorten CartItems to only include items from DiscountItems. The solution would be to find the CartItem in the resulting query that occurs the least amount of times, thus indicating how many combinations of items exist in CartItems.When CartItems is filtered to only the items in DiscountItems, it can be visually displayed like this:
CartItems that get a discount
=============================
AAA BBB <= This combination is eligible for a discount
AAA BBB <= This combination is eligible for a discount
AAA <= Not eligible
Thus, because there are 2 combinations of the discount in the Cart, the result is 2.Here's the query I already have, but it's not working. query results in an enumeration with 100 items, far more than I expected.
Dim query = From cartItem In Cart.CartItems
Group Join discountItem
In DiscountGroup.DiscountItems
[code]....
I'm trying to create a datagridviewrow and add data to it at runtime. I want the row to have the cells correspond to the columns in a datagridview, so that when I add data to the cells i can call the column name (the columns are likely to change around, so i think the name is better to use then the index).I create the row using the following code:
Dim row As New DataGridViewRow
row.CreateCells(Datagrid)
and the column using the following code:
Dim col As New DataGridViewComboBoxColumn
col.HeaderText = "Reference"
col.Name = "Reference"
datagrid.Columns.Insert(0, col)
I would like to add data to the row via the following code (or something similar that uses the column name instead of the index:
arow.Cells("Reference").Value = Detail.Reference
However at runtime I get the exception Column named Reference cannot be found. Parameter name: columnName I have a sneaking suspicion that the cells cannot be accessed with the column name because the row isnt really attached to columns yet (the row hasnt been added to the datagridview yet. (I tried cloning the cells of a row and then adding them to the row but no success)?
How to add a checkbox column at first column of datagridview including column header?After adding, how to code to "check all" or "uncheck all"?
View 27 RepliesI need to add a column to an existing table in my database. I am having trouble adding a column to my database. I physically go into Microsoft Access and add the column, my problem comes up when Visual Studio does not recognize the table. Basically, I think I'm doing something wrong.
View 5 RepliesI have to do some maintenance on an old VB.NET application (Visual Studio 2003) that uses Infragistics NetAdvantage 2006.I need to add a column to an existing UltraGrid control. This new column must act like a ComboBox, allowing the selection from a list of values.I added the new column, and set the Style to DropDownValidate. I created a ValueList and assigned it to the new column.At run-time I don't get the expected results.
View 2 RepliesWhat I want to do is add a new column to an existing access table which I have already created using the code below.
'Define the connectors
Dim oConn As OleDbConnection
Dim oCo
[code].....
I wanted to add new column to the existing table in my database table Please help.in the form it has a textbox in which you can enter any name that you want you column to bear. all this will be at runtime.i try but it keep saying (format of the intitialization string does not conform to specification starting at index 0) [code]
View 7 RepliesI have a table like this
col1 col2 col3
a b
c d
I want to fill the 3rd columns.
I want to modify the third column of an existing excel file. The problem with below code is a new file is prduced with the new values in Column C and erases all other values in the orginal file. I want to update the orginal file with the new values.
Public oExcel As Excel.Application
Public oBook As Excel.Workbook
Public oSheet As Excel.Worksheet
[Code]....
