I have a datagridview and once I populate the view with the data source I hide the columns that I do not need. For some reason the 1st column is not hiding. I have checked the column name and they match and the 2nd line executes fine hides the column for the EVENTID. I even did a messagebox.show( dgvTourOther.Columns("OTHERID").name) and it returned the correct name.
The values being passed are all strings. I do this on 3 other datagridviews ok but for somereason this gridview is acting different. I am going to try an rearrange the columns and see if that helps.
am binding the datagridview with datatable, actually I am converting a dataview to datatble after applying the filter. After binding my datagridview, I am trying to hide the first column and I am getting an error "Index was out of range. Must be non-negative and less than the size of the collection.Parameter name: index"Below is my code. I have two rows and 22 columns. The first column name is IndexID and want to hide that column
Private Sub bindGrid(ByVal dv As DataView) Try Dim ChatsChild As New edsChildim dt As New DataTable dt =
I am stuck on hiding a column in listview. I want to hide the items in that column as well. I tried setting the width to 0 but the user can still size it out and see it. I heard there was a way of doing it by removing the column completely and all of its items and then they can be refreshed back into that column when need be.
I know that .RowHeadersVisible = False will do this but it obviously also gets rid of all my column headings (which I want to keep). How do I get rid of the row selected column but preserve my column titles?
My query returns 4 columns. One column is a unique identifier for the record. I'm trying to hide that column so the user doesn't see it. I'm going to add an edit button and hopefully I'll be able to allow the user to click on the record's edit button and edit only one of the remaining 3 columns and I expect I'll need that hidden value to do the update. I've got code below but it doesn't work. It gives me an exception, "Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index ".
Dim MySqlCommand As New SqlCommand MySqlCommand.Connection = MySqlConnection MySqlCommand.CommandText = "SELECT ..................." MySqlConnection.Open() GridView1.DataSource = MySqlCommand.ExecuteReader [Code] .....
I have a form e.g. Form1 , which displays a datagridview. 1) On form load, the datagridview doesn't have any data 2) The user clicks on a button called filter, this opens a form where the user can specify parameters to filter the data by 3) This form calls a setData() in Form1, which fills the dataset with the data
This works fine. If I click on a button called controlPanel it launches another form and hides this. E.g. dim cp as new ControlPanel() this.hide() cp.show()
On the controlpanel I have a button that links to form1. If I click on it. E.g. dim frm as new Form1() this.hide() frm.show() It redisplays Form1 but without any data in the datagridview.
I think the problem is that since I am creating a new instance for Form1 it comes up with the blank Form1. Is there a way to redisplay Form1 so that it retains the data that was displayed last, without having to retrieve the data from the database.
I've embedded a form into another form by changing the Top Level property. My problem is that the new implementation does not allow me to edit the DataGridView at runtime. Here's the code I'm using from my main form: Dim f As New form2() f.TopLevel = False Me.Controls.Add(f) f.Show() f.showRows() f.showDbvHeader() When I call the two methods on the onload event in form2 they run OK for the remainder of the event but as soon as it ends, the DGV reverts back to default.
It seems that on clicking datagridview column header, the column will be automatically sorted based on the column type. I have a column showing some numbers. If column type is string, it sorts "1","20","3" into "1","20","3". If column type is double, it sorts into "1","3","20" which is the result that I want. However, there might be some erros in the numbers and error messages(text) will show in the cell instead of numbers. So I cannot set the column type as double. I want to ignore these error messages and sort all the numbers. How can I do this?
Also, I need to add some background colors to different rows in datagridview. So in the column header click event, I call the bkgColor Sub to achieve this. My question is that how can I override the sorting method in this event?
Private Sub DataGridView1_ColumnHeaderMouseClick(sender As Object, e As System.Windows.Forms.DataGridViewCellMouseEventArgs) Handles DataGridView1.ColumnHeaderMouseClick Try
i have a datagridview with three columns. i set the first column to visible=false, so the user can only see two columns.when the user presses the tab key in the first visible column -- column(1), i want to ignore column(2) so that the user only tabs through the rows in column(1)i can't get it to work. it will always tabs through the rows in column(2) even if i use the column name.
In my window application i have taken one combobox field with its collection as "amc", "war" etc. Now in my datagridview this combobox column is display as Textbox column, i want to change it to combobox with the above collection "amc","war". I have retreiving the result in datagrid through sql query, hence in datagrid edit column section we doesnot have that part to change to Combobox column.
in my window application i have taken one combobox column with its collection as "amc", "war" etc.Now in my datagridview this combobox column is display as Textbox column, i want to change it to combobox with the above collection "amc","war".
I have retreiving the result in datagrid through sql query, hence in datagrid edit column section we doesnot have that part to change to Combobox column.
Dim Comp = From C In db.Table1 _ Select C.Completed, C.Taken, C.Namne Datagridview1.DataSource = Comp
Am using the Entity Framework and Columns Completed and Taken are of bit Datatype. When the query results are displayed in the datagridview, these bit columns are returned as of ColumnType Textbox - so i get a Datagridview textbox column with true or false string values.
I want to display Completed and Taken as Checkbox columns (either ticked for True or un-ticked for false) but ofcourse i can't do this in EditColumn dialogue because the Datagridview is unbound.
Is there a way to find the column index of a datagridview column using the columns DataPropertyName?I currently use a loop (shown below in the class) which is kind of ugly, but it works. I'd like to do something like this, which seems more elegant.My goal is this, I store the users DataGridView column settings (i.e. DisplayIndex, Visible, & Width).When the user opens the form that contains the datagridview I want to get those settings from the database and apply the settings to the datagridview.[code]
I have a data gridview on my windows form with 4 columns. Now I identify a column as followed:
Dim item1 as String = DataGridView1.Item(1, index).Value
So now I use a number ( In this case: 1 ) for the column index, but I want to make it a bit more readable so now I want to obtain the column index based on the datagridview column name.[code]...
I want to move the cursor from column 1 to column 4 but what happened instead the cursor moves to column 5, this happens when I use the enter key event. but run well if I double click. The following description of the program: there are 7 columns of code, item description, unit, price, qty, discount, item amount code when key enter press :
Some codes here on how could I validate my datagridview? I mean, a certain column on my datagridview should accept integers only, otherwise, it will return a messagebox. Kindly include on which event it should be posted.
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
am trying to calculate the values in rows in column 6 based on values of column 5. Bellow is the the code I am using I get a run time error about the string not formatted properly
But this code will add columns to every rows in the gridview. How can I change the code so that it only add the column to row one instead of every row?
I have a datagridview (dgv) and if the user changes the size of a column or moves the column to the left or right, I want to be able to save those changes, so when the user sign's on again, the dgv will show as it was when the user closed out of it. Is there a way to do this?Also, is there a way to "freeze" columns? For example if I have 10 columns, I freeze column's 1 and 2 (to the left) so whenever the user scroll's over to the right, column's 1 and 2 will stay on the screen.
i have this datagridview containing column: {product, price, quantity, Total price}, and a 'calculate' button. I need to enter the quantity column and when I press 'calculate' button, it will calculate total price by price*quantity what i am struggling now is how to grab the 'text' in "quantity" column, as i won't fill everything in it, maybe only one row.
I want to sum of two coloum in Database but show the only single Record but when i use Distnict keyword in a Query that time this query will not effective .....
