is my main form.and frmpayable is frmmain's child from.in the frmpayable my code is
Dim frmreleasing As frmPostap
frmreleasing = New frmPostap(Me, release_record)
frmreleasing.MdiParent = Me.MdiParent
[code].....
I am trying to add a checkbox column to a DataGridView in a simple window forms application.
I am pulling back some data from a database using ADO.NET, putting into a datatable, and then setting the datagridview datasource to the datatable. I then want to add a checkbox column as the second column. So far I have this code that seems to work:
' Code here to connect to database
Dim da As New SqlDataAdapter(cmd)
Dim dt As New DataTable
[Code].....
This code 'works' and I get MyDataGridView to show the data with the checkbox column in the correct position in the table.
However, for some reason, I cannot check any of the check boxes in the DataGridView? I have tried lots of things (e.g.altering the readonly state of the column) but cannot get it to work.
I have a DataGridViewCheckBoxColumn who's column name is "booReadyToReport want to hide all the checkboxes in this column if "bintAnalyteCodeID" doesn't equal the selected value in a combobox on my form. ut I run this bit of code the DataGridView DataError event fires currently, have nothing in the event except an comment. he code seems to work, but I'm new to VB.NET and I'm wondering if this is the correct way to handle thishould I use the CellPainting event?
highlight rows with RBF3
For Each dr As DataGridViewRow In Me.dgvCalculatedResults.Rows
f dr.Cells("bintAnalyteCodeID").Value = Me.cbxAnalyte.SelectedValue Then
[code].....
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 RepliesDim 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
I'm using vb.net (2008) with mySQL database.
View 3 RepliesI have a datagridview with 2 columns, one is text box and another one is check box column. My problem is that when i check or uncheck on cell of check box column i just want to show a value of this cell but it show opposit to it real value, it mean that when i check on this cell its value is false so this result is not correct .
View 3 RepliesI have a DataGridView with a checkbox column. I want to capture the value of the checkbox immediately when user changes it by clicking. I tried several events (CellValueChanged, CellClicked, CurrentCellDirtyStateChanged etc.) but nothing worked.
This is my code:
If dgvIDsTBC.CurrentRow.Cells(2).Value = True Then
MsgBox("True")
End If
i have a datagridview that loads three columns from a datatable. i want to add a fourth column that needs to be a checkbox column. if i add the checkbox column at design time it is always my first column. i want it to be my last column after my datatable columns. how can i accomplish this?
View 2 RepliesI have a datagridview that is bound to a binding source.I used the following code to add a checkbox column to the datagridview:
Imports System.Windows.Forms
...
Dim newcolumn as DataGridViewCheckBoxColumn
Datagridview1.Columns.Add(newcolumn)
The checkbox column shows up successfully, but when I try to click any of the checkboxes,nothing happens.The cell remains unchecked.It blinks, so I know that it is acknowledging the click, but the checkbox state does not change.
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'm populating a datagridview from a sql server db. so when i select an item from a combobox and then a date from a monthcalendar i populate my dgv based on the classid of the combo and the weeknumber of the monthcalendar like this:[code]
View 2 RepliesI use a code for place a CheckBox Column, into a DatagridView.This CheckBox column is the last Column of the DataGridView.Now i wants the CheckBox column at the first place of the datagridView.The DataGridView is filled from a database with several Columns.Can i place the Checkbox to the front?this is mij code, that place the CheckBox on the last place..[code]
View 4 Repliesi am developing an application in VB.net implies some datagridview operations. the appl contains one DGVW with columns fixed programatically, one such column is Datagridviewcheckbox column. the datasource for dgvw is bounded by a datatable. the user needs to enter the values in the GUI.
supposing the user enters the 2x2 matrix values, and the user checked the checkbox last cell in the dgvw. The problem - the last cell value is not updating inside. if ii debug through code, the "cell(2,2).value" reurns null value whereas the rest of them returns the value what i entered.
if i clicked the mouse some where in the dgvw after entering the last cell value, then it is returning the exact value as expected.
I have a datagridview on my windows form bound to field "STATUS" in SQL database with the default value of 0.What i want to acheive is that for each row in the datagridview, if user clicks the checkbox column only it should display a message " LOCK THE ROW?". If user chooses yes then the entire row should become readonly including the checkbox check "Greyed out" or disabled for that particular row and update value to 1 in the database field.I created checkbox by:
'on form Load_Event
Dim colCheckbox As New DataGridViewCheckBoxColumn()
colCheckbox.AutoSizeMode =DataGridViewAutoSizeColumnMode.ColumnHeader
[code].....
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>
[code].....
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?
[Code]...
I have a simple datagridview that I fill from a mysql database using the latest mysql connector.net.I configured my columns in the datagridview collection and the data displays fine.I don't want the user to edit data directly in the grid so my datagridview is not readonly but all my columns are except the checkbox one. If I set the datagridview readonly I can't check my checkboxes.I added a checkbox column to be able to delete multiple rows easily but I can't uncheck a checkbox.
Let's say I have 3 rows in my datagridview I check line 1 checkbox- I check line 2 checkbox- I uncheck line 1 checkbox- I check line 3 checkbox As soon as I check line 3 checkbox, line 1 checkbox becomes checked "automagically"
[Code]...
I have datagrid view i added a DataGridViewCheckBoxColumn here i want to set by default check after data loaded in datagridview
View 2 RepliesI have a userform which allows my users to go through numerous comboboxes to select a combination of items they want displayed in a datagridview. My datagridview is populated from sql queries to my database(s), depending on the choices made in the comboboxes. The first column has checkboxes so my user can pick which rows they want to keep. Once they've chosen what they want, they click a button to save those rows into a seperate sql table.
All this works well, but here's my problem. After they click the button to save to the table, or another button which simply clears the datagridview without saving to the table, I want to clear my datagridview. While it seems to work, after all my comboboxes are cleared, and I go through another iteration of choices, and I display all the rows again in the datagridview, I get a second column of checkboxes.
Right now the checkbox column is added right before the datagrid's datasource is set. I've tried adding this column outside the subroutine that populates the grid, but it doesn't work.And I've tried numerous ways to delete this column so it will be regenerated when the datagridview is repopulated. Different things either give me errors or bomb when I compile.how to remove a checkbox column from a datagridview for good?
I have 2 DatagridViewChecKboxColumn. What I want to happen is that a (Submit)button will be disabled until the checkbox2 will be checked. How will I do this if my checkboxes are DataGridViewCheckboxColumn? What loop will I do,because there's a possibility that I'll be checking the last checkbox?
CheckboxColumn1 is "Parent" and CheckboxColumn2 is "Child", they are related to each other. It's a requirement that the Parent has to have at least 1 Child meaning it can be One(P) is to ManyŠ or One(P) is to OneŠ. If the user didn't meet the said requirement, the system should not allow him to insert the selected records to the database. That's why I've decided to Disable the button unless the user checked the two checkboxcolumn. Meaning if the user only checked the checkbox/es in the Child column, the button will remain disabled, same concept with the Parent checkboxcolumn. The button that I'm talking about is what I call "Consolidate Button".
I tried this:
Private Function HasParentAndChild() As Boolean
Dim result As Boolean = False
Dim hasParentCode As Boolean = False
[code]....
I tried this, but still not working. It does disable the button but in random clicks/checks meaning after 3 clicks in anycheckboxes the button will be disabled and be enabled again after how many clicks. Dont know what the problem is. Tried to debug but I dont get it.
i am developing an application for generating xml file with some details inside and regenerating it whenever i need.Step1: In the user interface,i have placed a gridviewcontrol during run time. i used Datatable for building the table and assign this table as datasource to the datagridview control. last column("GHI") is a checkbox column and its is successfully viewable in the datagridview. the snippet is like this.
dim iDGVWCount as integer
iDGVWCount =1
Dim oDGVW As DataGridView
[code]....
Step 3: if i reopen this xml file and populate the celll details in datagridview, the column 'GHI' is not viewable as checkbox column. it is simply shown like an ordinary cell. the snippet for opening the xml file is shown here.
dim ds as dataset
ds = New DataSet
ds.ReadXml("C: estxml.xml")
[code]....
Question1 : is there any setting needs to be done for bring back this checkbox column automatically in the datagridview while reading from the xml file.
Question2 : how we can bring the value of unchecked column as false in the xml file. the node is included in the xml only if a checkbox is checked.
I'm facing a strange problem in my dgv, I have the dgv bounded to a datatable, now I had to add a new column to let the user checks the rows that he/she want to export to a text file. I had the checkbox column, but when I run the application I can't check any row, I try to add in the click event of the dgv to manually check the column but it still not works...
My
VB
da.SelectCommand = com_pfda.Fill(ds, "table_1")dgv_dados_obra.DataSource = ds.Tables("table_1")
Dim dgvColunaCheck As New DataGridViewCheckBoxColumnWith dgvColunaCheck
[Code] .....
The code in the click event, because the normal click in the checkbox doesn't worked:
VB If e.ColumnIndex = 7 Then
If dgv_dados_obra.Item(7, e.RowIndex).Value = 0 Then
dgv_dados_obra.Item(7, e.RowIndex).Selected = True
[Code] .....
I don't know why this doesn't work...
how do you find out which COLUMN has the control or is sected in a datagridview in vb .net.
View 4 RepliesI have a DataGridView containing a large number of columns. I want the users to be able to select multiple columns and then select a menu item to hide the selected columns. For example a user might selected columns 5 through 10 and I want the program to hide those columns. I know how to hide columns, one at a time. I can get the count of selected columns but I have not figured out how to get the index to the left-most selected column. Trial and error is such a slow process.
Considering the huge number of options offered by the DataGridView tool, it would be nice if this forum had a special category for the DataGridView (common to VB and C#).
Finally I got the desired results but it took a lot of coding, looping through the selected cells to find the one with the lowest column index, then a second loop to count previously-hidden columns, then a third loop for hiding the selected columns, stepping past previously-hidden columns and declining to hide frozen columns.
i would like to know how i get the selected value of a datagridview combobox column?
View 1 RepliesI'm hiding the "EmployeeID", my Primary key that is part of my datagridviews datasource. I need to get the value of that hidden column of the selected row of my datagridview. How do I go about doing that?
View 1 RepliesI am having datagridview in that I have datagridview combobox column and noraml textfield. I want to know that how can I load selected value in that combox box when I am loading all entered details in data grid view.
View 1 RepliesI'm trying to validate that a particular column in a datagridview has been selected.
I've created this code which transfers the value of the selected Customer ID cell in the datagridview to another form.
Private Sub mnuFileEdit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles mnuFileEdit.Click
'Define variable for the current selected cell value
[Code]....
It's working fine but at the moment any column in the datagridview can be selected and transferred which causes an error.
So I want to create an If Then statement which confirms that the selected column with the dgv is the PK_ID (customer ID) column before processing the rest of the code. I've tried playing around with "If dgvCustomerSearch.SelectedColumns("PK_ID") Then" but a "Value of type...cannot be converted to Integer" error occurs.
i have 2 datagridcomboboxcolumn (datagridcomboboxcolumn1 and datagridcomboboxcolumn2).
With datagridcomboboxcolumn1
.DataSource = ds.Tables(0)
.ValueMember = "column1"
.DisplayMember = "column2"
[Code]....
how i can set selected item in datagridcomboboxcolumn2 become to "a" when selected item in datagridcomboboxcolumn1 is "1"or otherwise set selected item in datagridcomboboxcolumn1 become to "1" when selected item in datagridcomboboxcolumn2 is "a"??