DB/Reporting :: Datagridview Get The Lowest Value In A Column?
Nov 12, 2008I have a datagridview and has two columns(UserName and Age), what want to do is to get the UserName that has lowest Age.
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DB/Reporting :: Displaying DataGridView Text Column In A Mixed Bound/Unbound DataGridView?
Mar 15, 2011I 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
[code]....
DB/Reporting :: DataGridView - Datasource Does Not Show New Column
Oct 27, 2008I had a DataGridView that was bound to a Table in my typed DataSet. I recentyl added a new column to the table in the database and updated the table in the DataSet accordingly.Now, when I go to the DataGridView to update it, the new column does not appear under the "Databound column" list. I tried setting the data source to "None", then reselecting it. Still, it does not show the new column. I then deleted the DataGridView and re-added it to the form. Again, same result. However, when I select the data source, then click "Preview Data", it show the added column.
View 2 RepliesDB/Reporting :: Change Column Order In DataTable Or DataGridView?
Mar 3, 2008I'm retooling an app, and condensing my queries down to one, but to do so, I would like to move the columns for better presentation. I am reporting on errors for particlular equipment, and the user may want to get equipment by errors or errors by equipment. Is there any way to change column order?
View 5 RepliesDB/Reporting :: DataGridView Formatting - Set Row(d) To Sum Row(a:c) For Each Column (for Multiple Years Of Financials)
Apr 15, 2008Two quick questions about datagridviews... I have an unbound dgv and I'm trying to do some simple formatting but sadly my .net knowledge is limited at best. I'm trying to make a balance sheet and I need to do two things:
1. How can I set row(d) to sum row(a:c) for each column (for multiple years of financials)
2. Is there anyway to not only make a row readonly, but make in unselectable (to skip totaled rows)?
Add A Checkbox Column At First Column Of Datagridview Including Column Header?
Apr 9, 2010How 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 RepliesAdd Persistence To Multiple DataGridView In Terms Of Hide/Show Column And Column Width
Feb 24, 2010Add persistence to multible DataGridView in terms of Hide/Show column and column width
View 1 RepliesDatagridview - Sort Datagrid View Column With Numbers And Texts On Column Header Click?
Feb 13, 2012It 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
[code]....
Datagridview Tab Key - Ignore Column(2) So That The User Only Tabs Through The Rows In Column(1)?
Feb 27, 2009i 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.
[code]...
Disable Datagridview's Column In Term Of The Column Will Not Receive Focus
Mar 25, 2011I want to disable column in datagridview so the column will not receive focus,
when user press tab to move from cell to cell this column will be skipped and the focus move to the next cell or column.
DB/Reporting :: Invaild Column Name
Mar 28, 2009when i run my program and put Jamie in textbox 1 i get the erros Column 'Jamie'.and the line below is highleighted with that erros
Code:
Dim sqlResults As SqlClient.SqlDataReader = _
sqlStatement.ExecuteReader()
here is the code for that sub
Code:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
libraryDB.Open()
Dim sqlStatement As New SqlClient.SqlCommand( _
[code].....
Change Textbox Column To Combo Box Column In Datagridview
Jul 8, 2010In 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.
View 1 RepliesChange Textbox Column To Combo Box Column In Datagridview?
Jul 8, 2010in 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.
Replace Column By A Related Column From Another Table In DataGridView
Dec 14, 2011I have:
- Table1 with columns: PK_ID1, LOCATION, DIRECTOR, SELLER, SELLERID, WORKTIME (relationship), WORKCODE
- Table2 with columns: PK_ID2, WORKCODE (relationship) & WORK_DESCRIPTION
My DataGridView do a SELECT * FROM Table1;How can I replace WORKCODE with WORK_DESCRIPTION in DataGridView, please?
Show Bit Column As A Checkbox Column In Unbound Datagridview
May 14, 2010Dim 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.
how can i change this in code at runtime
DB/Reporting :: Datatable Column Already Exists?
Oct 15, 2008I have a datagridview which is populated from a datatable. This works fine. But if i run it more then once i get a column name "example" already belongs to this datatable. Ive tried everything to clear all the columns of the datatable and the gridview but still the same
[Code]...
DB/Reporting :: Search For Item In DVG Column?
Oct 7, 2009I need to do a lookup in a DatagridView column. I would like something with the blazing speed of what recordset.seek used to provide. I am assuming that a similar function/method is available for use with the DVG. What else is there to use that is better than my present implementation.
[Code]...
DB/Reporting :: Set All Cells In Column To Specific Value?
Aug 4, 2008I have a DataGridView binded to a DataSet that I created using the Visual Studio Data Source Configuration Wizard. Everything works good except for one problem.I have two columns, Modified_By and Date_Modified that should be inserted or updated as the user and the current date, respectively. So every row in the DataGridView should have the same value for these two columns.So far, I have thought of two ways to get this working, but neither one seems very clean. The first idea is to make a custom Fill method that takes as parameters the user and the current date and then add them as extra columns in the select method. For example
View 1 RepliesGet Column Index Of A DataGridView Column Using DataPropertyName
Jan 18, 2012Is 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]
View 5 RepliesIdentify A Datagridview Column Based On Column Name?
Dec 13, 2010I 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]...
VS 2010 Datagridview: Move To Column 4 But Instead To Column 5
Apr 9, 2011I 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 :
[Code]...
DB/Reporting :: Binfing Textbox With Column In DB Ms Aceess
Dec 1, 2008I'm using VS2005 - Vb.net and connection to DB Ms Acceess. I type to one of Column in DB by number and binding it with TextBox.Text. As I know the properties of TextBox must be a Value not Text to match with that Column. But there is no Value Property.
View 3 RepliesDB/Reporting :: Can't Select Column Names With Spaces
Apr 7, 2012I'm just a frustrated noob trying to get past my first DB Program. My goal is to get relational data from different tables all ordered by a certain field..Ive noticed early on that i cannot select a column when its name has a space.[code]Now the statement i want to use is sql = "SELECT [PT.Chart Number],[PT.Last Name],[CA.Case Number] FROM Table1 AS PT INNER JOIN Table2 AS CA ON PT.Chart Number = CA.Chart Number ORDER BY PT.Chart Number"..When i Debug i get the same type of error ("... Can't find column name PT.Chart... ")I'm new to sql so i dont know if my syntax is off.
View 4 RepliesDB/Reporting :: Column 'TYPE' Is Constrained To Be Unique?
Feb 20, 2009I'm using vb2005. I'm writing a little application which allows a person to type in a new value in a combobox (which I've bound to a field in a table) which can be updated to the database. I then refresh the dataAdapter by clearing it and re-filling it again when the user saves a new item. That part works fine. My problem occurs when the user selects a stationary item from the combobox. The first select works fine until they try to select another item. Then I get the following error: ConstraintException was unhandled: Column 'TYPE' is constrained to be unique. Value 'False' is already present.
View 2 RepliesDB/Reporting :: DataGrid - How To Change Column Alignment
Jul 15, 2010I have a datagrid that I am populating from an Access 2000 query in Visual Basic 2008.
This code works fine:
With dgvCollections
.Columns(0).Visible = False
.Columns(1).Width = 235
.Columns(2).Width = 230
.Columns(3).Width = 220
.Columns(4).Width = 70
.Columns(4).HeaderText = "Loan"
End With
The query works fine, except that I want to change the alignment for one of the columns. I tried to add this line before the "End With":
.Columns(4).DefaultCellStyle.Alignment.MiddleCenter()
Which causes the error:
"Access of shared member, constant member, enum member or nested type through an instance; qualifying expression will not be evaluated."
And this error:
"Expression is not a method."
DB/Reporting :: DGV Chkbox Column And Parameter Type?
Apr 30, 2008I have a datagridview with a checkbox column. I'm trying to update data in the dataset but I keep getting this error: Conversion from string "ExtendDate" to type 'Integer' is not valid.The parameter type for ExtendDate is boolean but i'm not sure if that's the correct type.
Code:
Dim Col11 As New DataGridViewCheckBoxColumn
With Col11
.DataPropertyName = "ExtendDate"
.HeaderText = "Extend Date"
[code]....
DB/Reporting :: Get Column Type From Access Database?
Sep 29, 2008How can I get information what data type a certain column is. (Integer, string, memo,...)
View 1 RepliesDB/Reporting :: Have A Combo Box With A List Of Everything In One Column Of Table?
May 5, 2009I have loaded my database into vb but now i was to have a combo box with a list of everything in one column of my table?
View 3 RepliesDB/Reporting :: How To Count The Number Of Rows In A Column
Apr 28, 2009I am having trouble Counting the number of rows in a specific column in a datatable.
View 2 RepliesDB/Reporting :: Seeking Item In Table Column?
Feb 19, 2012I am trying seek by looping thru a table for the closest match to a search item.
The following code works to a degree. It gets me within say 20 records of the target. I think it works somewhat but it may not be at all.
Code:
Private Sub Find_Item_In_Column(ByVal Search_Field As String)
'Pass a field name to do a string search on
Dim Find_Item As String = InputBox("Enter an Image File Name")
[Code]....
I used the data wizard to establish the connection and I am using VB 2008 Express.
In this case the data field will be a file name and it will be unique. Since the search for string will be a partial of what a file name might be. My expectation is that INCR will match the data row and can then be used to position the TrainImageBindingSource. So far it gets me close, but I am wondering if it is really working at all. I would like to arrive at the closest match (up or down one) found.
Can any one see any glaring errors or point me to an example(s) of similar code snippets?