I am creating a DataGridView in code, not dropping the object on a form in the visual environment, and the row header is ugly. I have been playing around with this for a while. I would like the row header to look "normal", and it does not. The row header is slightly larger than the column headers, and the border is not showing. I also am not seeing the "*" or arrow(pencil) for current row selected.
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in my application i created table called houseloading which has field called housename.which is inserted into the sqlserver database. my table will look like this
///column name house
values red
green
what i want now is i want to display the values red green as column header in datagridview
which will look exactly like this
red green
At runtime, I am adding a DataGridView to a windows form. The final column is a DataGridViewImageColumn:
Dim InfoIconColumn As New DataGridViewImageColumn
MyDataGridView.Columns.Insert(MyDataGridView.Columns.Count, InfoIconColumn)
Adding the following code will get my Information Icon (bitmap) to display in each of the column cells but NOT the column header:
Dim InfoIcon As New Bitmap("C:MyPathInfoIcon.bmp")
InfoIconColumn.Image = InfoIcon
Also, it is worth noting that the image displays 'perfectly' in the cells i.e. it is sized correctly to fit the cell.
However, I cannot find a way to add the same image to the column header cell. After some googling I used the following code which placed the image in the header cell but left me with two problems:
The image did not 'auto-size' to the column headercell in the same way it did when added to the column cells. The image was slightly larger and blurred.
By using the _CellPainting event slowed down performance i.e. when hovering over the DataGridView to highlight the selected row the highlighting lagged behind where my mouse was placed.
Here is the code:
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Does anybody know of a way to solve my problem and get a nicely sized, sharp image into a DataGridViewImageColumn headercell at runtime?
A datagridview is sorting numerical values (when clicking the datagridview column header text) in the wrong order based on the initial digit:
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I'm trying to add a title to the row header of a datagridview. I spent hours trying to get it to work to no avail. So finally I started a new project with only the very basic required code. It worked. I then copied the code from the basic project to my full project and the headers refused to show.
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I am reading a xml file and display all the data in datagrid view. But when I chose to display data of just one column only the data comes in the dgv but no column header. Same problem shows up, if I chose to display a particular row of a particular column. How can I fix this ??
Private Sub all_columns()
Try
ds.Tables.Clear()
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My app adds some custom metadata to files. I want to display it in Windows Explorer like this: or this: Is there a way to do this in .NET?
View 1 RepliesI have an application where a datagridview is used to display some data, a datatable is bounded to it, and I want to put some text in the front of some rows to indicate that they are different from others. My code checks the rows and used the following
mydatagridview.Rows.Item(iCnt).HeaderCell.Value = "A"
To set the row header values, it was fine when the data was first loaded. However, when I sort the datagridview by clicking the column header, these rowheadercell values disappear. How to keep the row header values after the sorting?
I am using the VB ReportViewer and report designer. I am not using the report wizard as I have had no success creating the report I want that way (I'm new to all this).
I have created a view holding all the columns I want to report on. Half the columns have values to be displayed in the body of the report in tabular form. The other half contain values on which I wish to group. Although there are several columns in this set, the values do not change except when the group value changes. Eg
Group col1
Group col2
Group col3
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I cannot discover how to achieve this using the tools provided with the report designer.
I am using vb.net 2005. I want one clarification for datagridview.I use the following property to set the alignment of header text:
DataGridView1.ColumnHeadersDefaultCellStyle.Alignment = DataGridViewContentAlignment.BottomCenter
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I am using following codes to format datagridview column headers, that works fine. My questions are
1) how to make all headings bold? (bold header row)
2) how to apply specific font to heading row
3) how to apply specific fontsize to heading row
4) how to apply specific fontstyle to heading row
With DataGridView1.ColumnHeadersDefaultCellStyle
.Alignment = DataGridViewContentAlignment.MiddleCenter
.BackColor = Color.CornflowerBlue
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How to add a Check Box in the header of a check box column? I need to add a check box in the header.
View 3 RepliesI have a DataGridView where I would like drawing custom glyph (let's suppose a triangle) on the column header when the user click on it.
I have the property EnableHeadersVisualStyles set to False.
how to reach the desired result? Do I need to inherit from DataGridView, or DataGridViewColumn?
Now the datagridView Header Background color is showing in Gray. I want to change to differenct
color.
I Changed the background color in ColumnHeaderDefaultCellStyle, but nothing changed.
How to do this.
Can I show checkboxes to the column headers in datagridview for each column in my dgv I Used [url] for help but it replaces the header cells one by one .Can I use any property of dgv which shows checkboxes for all column headers
View 3 RepliesI have a windows application with many forms. We use the DataGridView control on most of the forms, but on a new form that I designed I have four DataGridViews. All of the DataGridViews on this form do not dipaly the Column Header Text when the form is displayed when running in the IDE. I do not receive any errors or messages. The other DataGridVeiws on other forms display their column header text just fine. I am at a loss as to why this is happining on this form.
UPDATE: If I add the desired text to the column.HeaderText property at the end of the form load event it displays the column header text. For example AssignedAmountColumn.HeaderText = "Amount" it displays Amount in the column when run from the IDE.... However it dosn't display when the property is set though the Columns property at design time.
I have a datagrid and have added in some row headers:
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However the row header width is very small and you cant read the header without adjusting it. What is the formatting command to automatically size the header to fit the text?
I would like to have a header text above the row header.... Is that possible? "here " is the place where I want to have the text in ...
| here | Column 1 | Column 2
| | data 1
|-----------------
| > |
Basically, I need to be able to click a row header to sort a datagridview, similar to how clicking a column performs a sort.
View 7 RepliesI am wondering in row in the datagridview, How can i show the row index in the row header?
View 1 RepliesI'm trying to simulate a headerclick in datagridview column 1 with shortcut keys but I dont know how.
Private Sub frm_lista_KeyDown(ByVal sender As Object, ByVal e As KeyEventArgs) Handles Me.KeyDown
If e.KeyCode = Keys.S And e.Alt Then
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At runtime when the dgv is shown,then on clicking the header of a particular row of the dgv,i want to pop up a form...........how to do this?
View 8 RepliesI'm looping through rows in a datagridview, and selecting a cell from the 3rd column each time:
Dim customer_name as String
For Each dgvr As DataGridViewRow In myDataGridView.Rows
customer_name= dgvr.Cells(2).Value
'....
next dgvr
However, I'd really like to make it dynamic, in case a new column gets added to the grid, so that I need the 4th column, not the 3rd. I'd like to use the column's header text. So something like...
customer_name= dgvr.Cells("Customer").value
Can this be done?
I'm trying to render a checkbox in a datagridview column header so that when the checkbox is checked/unchecked all the cells in that column should be checked/unchecked accordingly.The datagridview is bound to a database table but the column containing the checkbox header cell is unbound. The problem is, whenever i click the header checkbox, all the cells in that column are checked but the header checkbox itself gets invisible. If I click the HEADER (though the checkbox is invisible, still I can click the header) again, all the cells in the column below are unchecked and the header checkbox becomes visible and unchecked. Everything is happening as expected except the visibility of the header checkbox. Why is it so?
''' <summary>
''' The custom class for checkbox header cell.
''' </summary>
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I'm trying to render a checkbox in a datagridview column header so that when the checkbox is hecked/unchecked all the cells in that column should be checked/unchecked accordingly. The datagridview is bound to a database table but the column containing the checkbox header cell is unbound.
The problem is, whenever i click the header checkbox, all the cells in that column are checked but the header checkbox itself gets invisible.If I click the HEADER (though the checkbox is invisible, still I can click the header) again, all the cells in the column below are unchecked and the header checkbox becomes visible and unchecked. Everything is happening as expected except the visibility of the header checkbox. Why is it so?
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I am trying to set the "ColumnHeadersDefaultCellStyle" property to the "GoudyHvyface BT" font and it will not change from the default. I am using Visual Basic 2008.
I have set the property properly with no success.
I have tried to set the property in code, using the suggestions in the MSDN and it kept throwing errors.
How can I determine if the user clicked on a cell in the grid, or on the column header? In both cases the CellDoubleClick Handler is called. I want to handle only the first case.
View 2 Replieshow to make database field as datagridviewheader For example,I have table called subject, and have one column named subjectName. This column will hold all the subjectName, there are more than 100 subject names. E.G
subjectName: math,physics,chemistry,history
Let say a student take those subject, then how to display in datagridview something like this. (field in the subjectName appear to be datagridview header in datagridview)
I want the output something like this
studentName |math |physics | chemistry
| history| etc... |<-datagridview header
student a |
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i am trying to learn how to change the first 10 rows of a datagridview to a header format. within these 10 rows several cells would be merged to show a large multiline label and row #11 s/b the row header that shows the col. names below it. rows 12 to 31 should show the actual rows numbered 1 to 20 that accept the data entered into the datagridview and if rows are added the top portion of header should stay in place and not move out of sight.please help if there is way to do this with datagridview.
View 16 RepliesCan i merge column header in datagridview (Winform) as below (Using VB language)
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