I have an unbound datagridview with a whole bunch of columns.I need to sort based on 4 columns, the first three are simple strings, the fouth is a date string (which in itself presents a problem, since it wants to sort lexically but I need them in date order).
View 3 RepliesI am adding two unbound calculated columns to datagridview. The columns show up but does not have the calculated data.
Private Sub Top10ToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _
Handles Top10ToolStripMenuItem.Click
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I have a datagridview that has 1 combobox column (it will eventually have between 1 and 3 more) but I can't find anything anywhere on how to add rows to this column. I create the columns:
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I am working with an Unbound DataGridView. I would like to vary the contents of a second combobox based on what is selected in the first. I have code to add the columns and populate the first combobox, but I can't figure out how to do the second one since it can (and usually will) have a different list for each row AND the list must change when the selection in the first is changed.
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
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I have common sub to save data from data table to database like this ad.Update(tb) It works fine, but problem comes when i populate Datagridview using a joined query which takes values from more than six tables, for example
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I was wondering the best method or code to Sum\total a bunch of cell values of an unbound column in a datagrid to a textbox string. this request is 100% genuine...im not some student trying to get you guys to finish my project, this is purely for educational and personal information for myself. im new to vb.net.
View 2 RepliesI have a datagridview.. It is unbound to any database and has 2 columns..1 is item name and other is amount/expense, incurred..I want the total of expense incurred be displayed in the textbox on button click ie adding the numbers in amount column..
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I have a DatagridView with 12 columns. I would like to insert 3 Columns AFTER it has been filled with data from the table.The first New column should contain the total of Col1, Col2, Col3.The second new column should contain the total of the (old) Col4, Col5 , Col6...
View 2 RepliesI have a datagridview that is bound to a datatable. When the form is displayed, the column headers have no sort glyphs and the columns will not sort.
I don't see a property on the form that controls column sorting - at least not one that's obvious. This is an area of the code that another developer wrote originally, so maybe there's something going on that I'm not aware of.
I'm trying to allow users to resize columns of my datagridview, but it's not working. I have this line:
DataGridView1.AllowUserToResizeColumns = True
I want users to be able to resize columns the same way they would if in excel.
With .net 05 and datagridview
Error: Index was out of range. Must be non-negative and less than the size of the collection.Parameter name: index
I am just looping through a datagridview cells of some columns, my datagridview is having 134 rows and 09 columns, but my code stopping at row 124 stating above error.
My code is here:
Public Sub IScoLP(ByVal dGRid As DataGridView)
'SHUNTING
Dim w As String = "SHUNTING"
Dim T_wTYPE As Object
Dim T_ALp As Object
[Code] .....
All fields from my class objects are added to the columns collection of DataGridViews, when the forms or custom controls that contain them are viewed within the VS 2005 designer. I haven't been able to figure out how to stop the designer from auto-adding all of the fields found within the bindingsource object.
View 6 RepliesI have a datagridview that I'm populating from a SProc. The data coms back fine and is presenting in the DGV without any trouble, but I don't like the order the data is being returned in.A long solution might be to modify the SProc to return the data in a different order, but I prefer to handle this on the UI for simplicity. Also, I know the user can re-order but that presents a specific poblem in the way the columns are structured.Is there a way to programmatically change the order at runtime?Here's the ode I have on the UI. If you need to see the adapter class also, please let me know and I'll present it, too.
Code:
Private Sub UpcomingInspections()
AddHandler mAdapter.ErrorOccured, AddressOf HandleDataError
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I have a table in a data grid the columns are bound to the columns...
SQFT QTY WIDTH LENGTH
i also have added into the datagrid an unbound column called Yeild%.what i'm trying to do is the following formula
SQFT / (QTY * (width * length / 144) and have the result return the answer in the unbound yield column for that row represented as a percentage
So if SQFT = 178 QTY = 2 Width = 144 Length = 102 answer would be 0.87 (rounded)
so this would be 87%
I have a DataGridView (dgv) on a Windows form (VB.NET) which is bound to a datatable. One of the bound columns is a an ID (Foreign Key) to another datatable. All I want to do is Hide the ID column and populate an unbound column with the Name (ParmName) for the user. I searched the foreign value in the datatable and retrieved the information. I set the Value of the cell in the Datarow. All works well, but does not display. The cell accepts the value...I can even Debug.Print the values to the console. They are there just nothing displaying in DataGridView. Nothing odd about DataGridView. Should be straight forward...
My Code
,
Dim dtParm As DataTable = MyDataSet.tblParameter
Dim dgv As DataGridView = Me.dgvResultNum_DataGrid
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Ok I have a datagridview that shows a bunch of data through a Database. So I have the script connect to the database and I have a while loop going so that it keeps searching through the database to make sure it "publishes" all of the data in there. My problem is, it doesn't show the first set of data. For example: I have 2 columns, one header is Name, and the other is Y/N. The data in the database:
Jim, N
Alex, Y
Pat, N
George, Y
When I run the program, and it populates the datagridview, the first set of data is removed, so it only shows Alex, Pat, and George. Does anyone know why this happens? Does it perhaps have something to do with the column headers writing over the first set of data?
I'm using VB.net 2005. I have working programs that I populate DataGridViews with something like the following:
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First form has 1 listbox and 2 buttons. Second form has 1 datagridview and 1 button. The first form opens the csv and list the location+filename of the CSV file. When the CSV files are listed in the listbox, the user can edit the selected csv file in listbox through edit button, when edit button is pressed, the second form will show as dialog and automatically opens the CSV files in DataGridView. The user will edit some fields and save and the second form will autoclose. Now here's the problem, when i select another CSV file in the listbox and press the edit button, the previous CSV still shows, even other CSV files I select, still the previous CSV file was showing.
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I'm working on a project where I've loaded a database into a DGV. I also have an additional unbound checkbox column for the users to select entries with. I have code in place to read the selected rows and save them into a CSV string, which is then saved in the usersettings. All this works fine.
PROBLEM AREA:
I'm trying to reverse this effect so that when the DGV loads, the checkboxes that the user selected previously are checked (and the others left unchecked). I've debugged this extensively, and using watches have confirmed that all the values in the loops are right, and the conditionals are all kicking correctly, but it seems the code I'm using to actually check the boxes doesn't work. I've searched dozens of web pages, msdn white papers, and forums, but no suggestions will check the darned box. Below is some example code.[CODE...]
In debugging, it seems the value for the Cells IS changed, but the checkbox never gets selected. The try/catch was just to pick any error messages (but there are none with this code). What am I doing wrong here?
I am trying to display unbound data in a DataGridView.I set up columns already design-time. I am at a loss for creating code that adds a new row using the column schema that was created in the Designer?Something like this?
dim newrow as DataGridViewRownewrow.cells.item("name").value = "text here"datagridview1.rows.add(newrow)
I get an error saying the 'name' column was not found?
I have a form created which an unbound datagridview that has three columns. "Position", "ID", "Name". The data is being added at runtime into a database upon the forms completion. (I don't want to add unnecessary rows to the database in the event a person clicks Cancel.) What I need to do is on the deletion of a row in the datagridview, search through the rows "Position" for a "HJ" value. If it's not found, change the "Position" value of the first row to be "HJ".
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I am trying to transfer the entire contents of an unbound datagridview (excluding the headers) to the next row of a bound datagridview. This is what I have so far but I'm not sure if I'm on the right track or not.
vb.net
Dim rowcount As Integer = dgv1.Rows.Count
dgv2.SelectAll()
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I have an unbound datagrid control I am using to store inspection information. The program records the information from the user, validates the values, and saves it into a database. It will then show the last inspection data in the datagridview. The user has the option of doublclicking a row and changing values and resaving the row. The number of rows per piece inspected varies, so that is why I used the grid to show the inspection data, however, they want to see a running total of each inspection point at the bottom of the grid so when they add the new values, it will update the running totals. I can see how to add a new column for a running total, but the layout requires the sums to be in the last row of the grid. I can add the row to the grid, but I need to make sure it stays at the bottom of the grid when I add a new row, and if possible freeze the row so it is always visible like excel. The program we are re-writting is excel based so this functionality is critical for the inspector to see the running totals for each inspection point.
View 3 RepliesI have an unbound datagridview with three columns already setup. I load data into a dataset. I bind the dataset to the datagridview. My issue is that new columns for the dataset is added to my datagridview. I would like to place the datainto the predefined columns. I have tried this:
Dim
index As
Integer
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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]...
I have an unbound Datagridview which gets its data from an array from an Excel sheet. I give the user the chance to amend this data in a Datagridview. I then need to know if the user has changed this data before processing it further. I have in vain, tried to use IsCurrentRowDirty, IsCurrentCellDirty, looping through DGV matrix etc. It seems that because the DGV is not bound to a dataset then the normal properties like HasChanged and the 2 above don't seem to work. Here is my attempted code which is not working:
Dim DGRow As DataGridViewRow
Dim DGCell As DataGridViewCell
For Each DGRow In DGV_ReviewDetails.Rows
[code]....
How to delete all rows from unbound datagridview ?
View 1 RepliesI am using VB 2010 with an Access 2010 database. The Access table is the data source for a DataGridView created by dragging the table from the DataSet onto the form. The table has 3 columns - First, Last and DOB (Date of Birth). I want to have a column in each row to show the person's age. I added an unbound cell in the DataGridView called Age, but cannot figure out how to fill the cell with the information I need. I tried using the DataName property, but that will only allow me to enter columns already in the grid. I think what I need to do is fill this cell (Age) by a value computed from DateDiff(DateInterval.Year, DOB, Now), but I cannot figure out how to do so.
View 7 RepliesI am creating a form to display data in a DataGrid that is bound to a .mdb Query. I am semi-experienced in VB6 Programming, but relatively new to VS8 and all of the features. I created the form, and have the DataGrid that displays all of the info in the query. I would like to be able to filter the form to only display data that matches what the user would type into a text box on the form (I have a text box created as well as a command button that says "Search by...").
Additional Info - I do not have, nor do I want, the DataGrid Navigator displayed on the form.
I want the user to be able to type a value in the text box (Rack Number), then press the button (Search by Rack Number) to only display the data in the DataGrid that corresponds to the rack that matches the text box.