I try to make grid columns during runtime, and one of column using repositorycheckedit, I tried several methods but none worked
here is my code
Dim dtSet As New DataSet()
Dim dtTable As New DataTable("menu")
Dim grCol As New DataColumn
Dim rpChk As New RepositoryItemCheckEdit
grCol.ColumnName = "smenu"
grCol.Caption = "Menu"
dtTable.Columns.Add("Menu")
dtTable.Columns(0).ColumnName = "smenu"
dtTable.Columns.Add("New")
dtTable.Columns(1).ColumnName = "snew"
dtTable.Rows.Add("Nama", 1)
dtSet.Tables.Add(dtTable)
gr.DataSource = dtSet
gr.DataMember = "menu"
rpChk.ValueChecked = 1
rpChk.ValueUnchecked = 0
grV.Columns("snew").ColumnEdit = rpChk
somehow, the column supposed to show checkbox always grayed out, if i try to mark the checkbox, it will become null after lost focus/change cell
pplease anyone.? thanks
Source #2 (After revised) and still no result as expected
Dim dtTable As New DataTable("menu")
Dim rpChk As New RepositoryItemCheckEdit
dtTable.Columns.Add("Menu")
dtTable.Columns(0).ColumnName = "smenu"
dtTable.Columns.Add("New")
dtTable.Columns(1).ColumnName = "snew"
dtTable.Rows.Add("Nama", CSByte(1))
dtTable.Rows.Add("Nama1", CSByte(0))
dtTable.Rows.Add("Nama2", CSByte(1))
dtTable.Rows.Add("Nama3", CSByte(0))
gr.DataSource = dtTable
rpChk.ValueChecked = 1
rpChk.ValueUnchecked = 0
grV.Columns("snew").ColumnEdit = rpChk
After tried several times, maybe someone needs answer
So finally I solved it. When create columns we need to define what type for the columns
dtTable.Columns.Add("Menu",GetType(String))
dtTable.Columns(0).ColumnName = "smenu"
dtTable.Columns.Add("New",GetType(Boolean))
dtTable.Columns(1).ColumnName = "snew"
And things finally worked.
Related
Search and display data in data grid view
Dim cmd As New OracleCommand("Select JV_CODE,JV_ACC_NAME,DEBIT,CREDIT From VOUCHER_DETAIL where VOUCHERNO =:Vno", sgcnn)
cmd.Parameters.Add("#Vno", OracleDbType.NVarchar2).Value = txtJVNo.Text.ToString.Trim
Dim daVD As New OracleDataAdapter(cmd)
Dim dtVD As New DataTable()
daVD.Fill(dtVD)
dgvAccDetail.AutoGenerateColumns = False
dgvAccDetail.DataSource = dtVD
dgvAccDetail.Rows(0).Cells(0).Value = dtVD.Rows(0).Item("JV_CODE").ToString.Trim
dgvAccDetail.Rows(0).Cells(1).Value = dtVD.Rows(0).Item("JV_ACC_NAME").ToString.Trim
dgvAccDetail.Rows(0).Cells(2).Value = dtVD.Rows(0).Item("DEBIT").ToString.Trim
dgvAccDetail.Rows(0).Cells(3).Value = dtVD.Rows(0).Item("CREDIT").ToString.Trim
Catch ex As Exception
MsgBox(ex.Message)
End Try
There are two rows in dtVD data table but result shows only one I stack with this some can tell what I'm doing wrong ?
The reason for this is that you are only assigning the one row. You have a couple options:
First, this code below here shouldn't really be necessary, of you setup the property binding on the grid. You'll get better performance that way if you use a bind. You don't have your GUI code here, but essentially your DataPropertyName field on the columns should be set.
dgvAccDetail.Rows(0).Cells(0).Value = dtVD.Rows(0).Item("JV_CODE").ToString.Trim
dgvAccDetail.Rows(0).Cells(1).Value = dtVD.Rows(0).Item("JV_ACC_NAME").ToString.Trim
dgvAccDetail.Rows(0).Cells(2).Value = dtVD.Rows(0).Item("DEBIT").ToString.Trim
dgvAccDetail.Rows(0).Cells(3).Value = dtVD.Rows(0).Item("CREDIT").ToString.Trim
If you insist on manually assigning the cell values, you cannot just do row 0 (that's the first row). You need to do all the rows in a loop.
For i as Integer = 0 to dtVD.Rows.Count - 1
dgvAccDetail.Rows(i).Cells(0).Value = dtVD.Rows(i).Item("JV_CODE").ToString.Trim
dgvAccDetail.Rows(i).Cells(1).Value = dtVD.Rows(i).Item("JV_ACC_NAME").ToString.Trim
dgvAccDetail.Rows(i).Cells(2).Value = dtVD.Rows(i).Item("DEBIT").ToString.Trim
dgvAccDetail.Rows(i).Cells(3).Value = dtVD.Rows(i).Item("CREDIT").ToString.Trim
Next
Update 5/21/17. Thank you for the suggestion of using a Table. That was helpful. I actually figured it out. I made myinputable a global variable by declaring the Dim statement at the top and making it a Datagridview type. Now I can turn it off in the other event that I needed to do it.
I am a novice. I have created a Datagridview in VB 2015 to capture a bunch of data from the use. When the user is finished with the data entry, I want to store the cell values in my variables. I do not know how to capture any event from my dynamically created datagridview "myinputable." My code is below. Please help.
Private Sub inputmodel()
Dim prompt As String
Dim k As Integer
'
' first get the problem title and the number of objectives and alternatives
'
prompt = "Enter problem title: "
title = InputBox(prompt)
prompt = "Enter number of criteria: "
nobj = InputBox(prompt)
prompt = "Enter number of alternatives: "
nalt = InputBox(prompt)
'
' now create the table
'
Dim Myinputable As New DataGridView
Dim combocol As New DataGridViewComboBoxColumn
combocol.Items.AddRange("Increasing", "Decreaing", "Threashold")
For k = 1 To 6
If k <> 2 Then
Dim nc As New DataGridViewTextBoxColumn
nc.Name = ""
Myinputable.Columns.Add(nc)
Else
Myinputable.Columns.AddRange(combocol)
End If
Next k
' now add the rows and place the spreadsheet on the form
Myinputable.Rows.Add(nobj - 1)
Myinputable.Location = New Point(25, 50)
Myinputable.AutoSize = True
Me.Controls.Add(Myinputable)
FlowLayoutPanel1.Visible = True
Myinputable.Columns(0).Name = "Name"
Myinputable.Columns(0).HeaderText = "Name"
Myinputable.Columns(1).Name = "Type"
Myinputable.Columns(1).HeaderText = "Type"
Myinputable.Columns(2).Name = "LThresh"
Myinputable.Columns(2).HeaderText = "Lower Threshold"
'Myinputable.Columns(2).ValueType = co
Myinputable.Columns(3).Name = "UThresh"
Myinputable.Columns(3).HeaderText = "Upper Threshold"
Myinputable.Columns(4).Name = "ABMin"
Myinputable.Columns(4).HeaderText = "Abs. Minimum"
Myinputable.Columns(5).Name = "ABMax"
Myinputable.Columns(5).HeaderText = "Abs. Maximum "
Myinputable.Rows(0).Cells(0).Value = "Help"
If Myinputable.Capture = True Then
MsgBox(" damn ")
End If
End Sub
As #Plutonix suggests, you should start by creating a DataTable. Add columns of the appropriate types to the DataTable and then bind it to the grid, i.e. assign it to the DataSource of your grid, e.g.
Dim table As New DataTable
With table.Columns
.Add("ID", GetType(Integer))
.Add("Name", GetType(String))
End With
DataGridView1.DataSource = table
That will automatically add the appropriate columns to the grid if it doesn't already have any, or you can add the columns in the designer and set their DataPropertyName to tell them which DataColumn to bind to. As the user makes changes in the grid, the data will be automatically pushed to the underlying DataTable.
When you're done, you can access the data via the DataTable and even save the lot to a database with a single call to the Update method of a data adapter if you wish.
I am not a c# developer and I found myself at work working with a huge C# application...hug..
Now I am trying to populate an existing DataGrid with some more data which has been 'created' in a different way...let me show you what I mean.
This is how the existing DataView is generated:
Dim lDataSet As System.Data.DataSet
Dim lSqlCommand As New System.Data.SqlClient.SqlCommand
Dim lConvert As New PeoplePlanner.Common.Data.Convert
lSqlCommand.CommandType = CommandType.StoredProcedure
lsqlCommand.CommandText = "AccessIntegrationEmployeeInboundSearch"
lDataSet = objDatabase.GetDataSet(lSqlCommand)
If Not IsNothing(lDataSet) Then
objDataView = lDataSet.Tables(0).DefaultView
End If
There is probably be stuff missing in that code but hopefully it is enough to get an overview. It uses Stored Procedure (SP) to get some data from the DB and it returns the result inside 'lDataSet' and then we do 'objDataView = lDataSet.Tables(0).DefaultView'.
Now the new data which I want to 'merge in' it has the same fields but it is not the response of a SP but of an operation I have created which returns back a List of OnBoardingEmployee(let's call it like that) and if I want to correctly show ONLY the data inside that list this is what I do:
Dim lDataView As System.Data.DataView
Dim op = CoreInjector.Inject(Of IGetAllDataHubIncomingMessagesToBeProcess).Execute()
lDataView = Common.Detail.DataGridOperationHelper.ConvertToDataTable(op.OnBoardingEmployee).DefaultView
objDataView = lDataView
Where:
op contains a list of OnBoardingEmployee which has the same fields as the existing table
lDataView basically is the same as objDataView that's why as last step I assign objDataView = lDataView
Now I would basically like to merge, join, add, whatever
The objDataView created for the first table:
objDataView = lDataSet.Tables(0).DefaultView
with the one I have created afterwards:
lDataView = Common.Detail.DataGridOperationHelper.ConvertToDataTable(x.OnBoardingEmployee).DefaultView
How do I do that? :'(
They have the same data structure or better say they use the same view.
Thanks for the help :)
I have got it working :) this is my implementation:
Dim employeeJSONTable As DataTable
Dim employeeExistingTable As DataTable
Dim myDataRow As DataRow
Dim employeeID As Integer
if Request.QueryString.Get("Function") = "HubInbound" then
Dim employeeJSONList = CoreInjector.Inject(Of IGetAllDataHubIncomingMessagesToBeProcess).Execute()
employeeJSONTable = Common.Detail.DataGridOperationHelper.ConvertToDataTable(employeeJSONList.OnBoardingEmployee)
employeeJSONTable.PrimaryKey = New DataColumn(){ employeeJSONTable.Columns("EmployeeID")}
End If
lDataSet = objDatabase.GetDataSet(lSqlCommand)
employeeExistingTable = lDataSet.Tables(0)
For Each row As DataRow In employeeExistingTable.Rows
employeeID = row.Item("EmployeeID")
myDataRow = employeeJSONTable.Rows.Find(employeeID)
if (myDataRow Is Nothing) then
employeeJSONTable.ImportRow(row)
End If
Next row
If Not IsNothing(employeeJSONTable.DefaultView) And Request.QueryString.Get("Function") = "HubInbound" Then
objDataView = employeeJSONTable.DefaultView
Elseif Not IsNothing(lDataSet) Then
objDataView = lDataSet.Tables(0).DefaultView
End if
I'm adding programatically some rows in a datagridview every certain time. I want to view in the datagridview the status of certain github repositories, such as if are online, how much commits are in the repos at certain time, etc.
So, when there is timeout, i clear the rows with DataGridView.Rows.Clear() and then i add again the repositories with the updated info.
My code is here:
Dim ok As Integer = 0
DataGridView1.Rows.Clear()
For Each r As RepoURL In _impControllerBpi.GetReposApi
DataGridView1.Rows.Add(DateTimeOffset.Now, "https://github.com/" + r.GetUsr + "/" + r.GetNomRep, "-", "-", "-")
Next
Dim counter = 1
For Each r As RepoURL In _impControllerBpi.GetReposApi
DataGridView1.Rows.Item(counter - 1).Cells.Item(0).Value = DateTimeOffset.Now
DataGridView1.Rows.Item(counter - 1).Cells.Item(2).Value = "Conectando con GitHub"
ok = Await _impController.getRepoGitHub(r, counter)
If ok = 1 Then
DataGridView1.Rows.Item(counter - 1).Cells.Item(0).Value = DateTimeOffset.Now
DataGridView1.Rows.Item(counter - 1).Cells.Item(2).Value = "Conectado"
Else
DataGridView1.Rows.Item(counter - 1).Cells.Item(0).Value = DateTimeOffset.Now
DataGridView1.Rows.Item(counter - 1).Cells.Item(2).Value = "Repositorio no disponible en GitHub"
End If
counter = counter + 1
Next
Dim wreturnCode As Integer = System.Threading.ThreadPool.QueueUserWorkItem(New System.Threading.WaitCallback(AddressOf RepeatAction), cancellation.Token)
ok = 0
All works fine without Clear(). But when i clear the rows, in some iteration, when i add the first row, the system throws me a
System.NullReferenceException
Some help? Clear() frees the memory allocated for the collection of rows?
There are serial ways for choice when you really want to clear the data of DataGridView Control.
1.Use for loop to clear the row data one by one.
for (int i = 0; i < dataGridView1.RowCount; i++)
{
dataGridView1.Rows.Remove(dataGridView1.Rows[0]);
}
2.Set DataSource property to NULL directly.
DataGridView.DataSource＝null;
If you want to bind DataSet to this control, you’d better setting DataSet to NULL first.
DataSet DataSet1＝new DataSet();
DataSet1.clear();
3.Above way may remove all of Tables inside in specified DataSet,so you'd better removing its Table separately.
DataSet ds = new DataSet();
DataTable dt = new DataTable();
dt.Columns.Add("val", typeof(int));
dt.Columns.Add("name", typeof(string));
dt.Rows.Add(1, "good");
ds.Tables.Add(dt);
dt.TableName = "test";
dataGridView1.DataSource = ds.Tables[0];
Hence, you can use following code to clear specified table.
ds.Tables[0].Clear();
I have list of columns in DataTable to be added in list view. I have specified to the listview of columns in the order to appear and Datas as well.
EmailAddress Subject RecievedDate
cd#cd.in Hello 02/06/2011 23:00
This the format to appear.Please anyone can help on this
EDIT:
Code so far:
For i = 0 To objDataTable.Rows.Count drow = objDataTable.Rows(i)
Dim lvwItem As ListViewItem = New lvwItem(drow("SenderEmail"))
'lvwItem.SubItems.Add(drow("SenderEmail"))
lvwItem.SubItems.Add(drow("EmailSubject"))
lvwItem.SubItems.Add(drow("RecievedDate").ToString())
lvwItem.SubItems.Add(drow("AssignedTo").ToString())
LOV.Items.Add(lvwItem)
Next
Your code sample looks almost correct. One error is this line:
Dim lvwItem As ListViewItem = New lvwItem(drow("SenderEmail"))
This should be:
Dim lvwItem As ListViewItem = New ListViewItem(drow("SenderEmail").ToString())
Apart from that you need to make sure your listview is in details view and you actually have the columns you require (otherwise nothing will be shown when in details view):
With listview1
.View = View.Details
.Columns.Add("Email Address")
.Columns.Add("Subject")
.Columns.Add("Recived Date")
'etc
End With
One other small issue is This line:
For i = 0 To objDataTable.Rows.Count
Should be
For i = 0 To objDataTable.Rows.Count - 1