Datagridview Checkbox Column Won't Check?
Feb 11, 2010
I 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.
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Nov 22, 2011
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].....
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Apr 9, 2010
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"?
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May 14, 2010
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.
how can i change this in code at runtime
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May 21, 2007
How do I add a CheckBox Column to my DataGrid and set the Check box in a way that Depending on the value returned in my row, it is either Checked or not checked?
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May 7, 2009
I'm using vb.net (2008) with mySQL database.
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Mar 11, 2010
I 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 .
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Mar 16, 2011
I 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
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Apr 1, 2010
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?
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Sep 6, 2011
I have a form with a datagridview.This datagrid is getting populated from Database.Im able to fill the data in datagrid.I have added a column of checkbox type in the datagrid other than those columns which is getting populated from Database.I have added filters on the form,once the record is populated,my requirement is should be able to check and uncheck the record of corresponding checkbox column that i have added.For Example:In my datagridview RollNo,Name,Address,MobileNo are some fields that are populated from database.I have already added these columns in my Grid by click the smarttag available on Datagrid and then selecting Edit Columns option.Above mentioned fields are all textbox columns.Apart from these columns i have added one more column of type checkbox before my mobile number column.My requirement is after data is populated i should be able to check and uncheck my checkbox column in front of those mobile numbers to whom i want to send a message.
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Dec 27, 2010
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
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Dec 18, 2009
i'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]
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Dec 17, 2011
I 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]
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Oct 26, 2010
i 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.
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Sep 21, 2009
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].....
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Sep 13, 2011
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].....
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Sep 13, 2011
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]...
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Mar 2, 2009
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]...
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Aug 9, 2009
I have datagrid view i added a DataGridViewCheckBoxColumn here i want to set by default check after data loaded in datagridview
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Nov 10, 2009
I 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?
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Mar 2, 2010
On a click of a checkbox, I want all the rows to get checked. Is that possible?
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May 17, 2011
[code]I want users to be able to click on the checkbox in field4 and add all of the data plus the word Holiday to my database when they click on the box in that field, but right now it's not allowing me to click on the checkbox, can someone please assist? Also, I did have this working for that field but it would only allow me to add the first line of data, what in my code would not allow for the additional lines to not add their data as well?
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Mar 4, 2011
I have a form with 2 datagridviews on it, each connected to to table in a database: datagridview1 and datagridview2.Datagridview1 has a column called names and a column called recievers.Datagridview2 has a column called senders and a checkbox column in it.
The user will first select a row in datagridview1 and then click a check box in datagridview2.What i want to do is when the user clicks a check box in datagridview2, i want it to copy the value in the "names" column of the same row, to the receivers column of the selected row in datagridview1.
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Jun 23, 2009
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.
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Aug 21, 2011
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.
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Oct 6, 2010
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.
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Aug 31, 2010
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].....
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Mar 31, 2009
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...
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Dec 8, 2010
How i make a button visible or Un Visible using the DataGridView's Checkbox...
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Mar 7, 2011
how to check and uncheck all asp.net checkbox on single checkbox check ?I have 5 asp.net checkbox on webform i want when 1 single checkbox checked then all checkbox will be cchecked and if checkbox is unchecked then all checkb ox will be unchecked ..
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