Binding An Enum DataGridViewComboBoxColumn To A Datarow
Jun 23, 2009
Public Class Form5
Public Enum myStatus
Pending = 0
[Code]....
The above code assumes that you have a Form named Form5 with a DataGridView called DataGridView1. If you run the form and change a value in the new column then try to exit that column, you get an exception. Ultimately I was wanting to bind from a datatable from an SQL 2000 Server which is why I used an Integer column type for the datarow. It would seem that the Enum would evaluate to an integer. If you show the valuetype in the validated event which will fire if you remove the
col.DataPropertyName = "Status"
line, It return a numeric value.
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May 29, 2010
I use objectbinding to display client data in a datagridview. The datagridview also contains a counry-column allowing the user to choose the country of the client.Unfortunately, databinding of comboboxcolumn does not seem to work if an own business class is used. Using a simple collection instead works well.Copy the sample code into a new windows project and the programm runs fine. Then comment and uncomment the two lines with "XXX" and the code will fail. Why and does anybody know how to make the sample code work by using the business object class(variable named "newClientListVariable" in the sample)? [code]
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Dec 16, 2010
I have the following code where I'm trying to bind a datarow to a textbox.
Me.TierNameText.DataBindings.Add("Text", Me.m_TierRecord, "tier_name") Problem is, when the form is displayed no text is shown in the textbox.
This code runs before I call the form's ShowDialog method. I stepped through the code to make sure the datarow has data, and indeed it does.
I rarely use databinding but thought I'd try it this time.
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Apr 7, 2011
I tried to bind the following Enum to a ComboBox
Public Enum PossibleActions
ActionRead
ActionWrite
ActionVerify
End Enum
I can't change the Enum itself, but I do not want to display these strings. My intention is just to cut the prefix 'Action' and display 'Read', 'Write' and 'Verify' in the ComboBox.
Therefore I wrote a ValueConverter
Public Class PossibleActionsConverter
Implements IValueConverter
Public Function Convert(ByVal value As Object, ByVal targetType As System.Type, ByVal parameter As Object, ByVal culture As System.Globalization.CultureInfo) As Object Implements System.Windows.Data.IValueConverter.Convert
[Code] .....
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Dec 30, 2009
I have a URL lets say . some time i need to send HTTP and some time i need to send it to HTTPS for that i created a enum:
Private _protocol As Protocol
Enum Protocol
HTTP
HTTPS
[CODE]...
Now when i get value back from protocoltype it returns me integer value as enum do so tell me how to get string from enum or other substitute.
Dim targetUri As String = setting.protocolType & "://www.mysite.com"
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Apr 8, 2010
So I have the following
With Me.dgv
.AutoGenerateColumns = False
.DataSource = Info.PESList
[code]....
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Mar 25, 2011
I'm trying to declare an enumeration and one of the names I'd like to use for an item is not usable apparently. Where I am declaring 'STEP = 3', I get this error message in visual studio: "Statement cannot appear within an Enum body. End of statement expected." Is it possible to use STEP as an item name somehow? [Code]
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Jan 2, 2012
RE - FilesystemRights Enum
This Code:
Dim FSRS As Type = GetType(FileSystemRights)
For Each fsr As String In [Enum].GetNames(FSRS)
TextBox1.AppendText(fsr.ToString & vbCrLf)
Next
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May 26, 2010
Which is better, using a nullable enum or adding the value None=0 to your enum list?Using nullables requires more code, but I kind of like it since it forces me to think about the possibility. Otherwise I'm liable to forget about the None enum and fail to account for it being a special case.
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Aug 23, 2011
I've tried the code below but it always returns nothing, It should enter
Protected Function GetTotalDebitAmount(ByRef roEntryDetailRecordBaseList As List(Of PPDEntryDetailRecord)) As String
Dim iTotal As Integer = 0
[Code]....
I need some one who evaluate the part below:
If CBool(Array.IndexOf([Enum].GetValues(GetType(TransactionCodes.Debits)), CInt(oEntryDetailRecord.TransactionCode)) > 0) Then
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Apr 28, 2010
I have two datatables with similar structures that I want to make one existing row to be updated from another datatable.
For example, "tableA" has three columns: "one", "two", and "three"; with "one" being the primary key...
and "tableB" has three columns as well: "one", "two", and "three"; with "one" being the primary key.
Say there is a row on tableA that is different than a row on tableB (with a matching primary key). What I wanted to do, as efficiently as possible, is to take the that row from tableB and replace the one on tableA so it'll be modified.
I'm not sure if there's an easier way of doing that instead of using loops for setting the row's items.
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Oct 29, 2011
is there any way that i could link/bind multiple binding source to only one binding source navigator?
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Oct 18, 2010
binding navigators, datagrid view, binding source are all sql database parts.Will these parts still work if you havent got sql on you pc and your not using an database file (.log and .mfd) and your not coding to them, im using MS Jet/Oledb to code to Excel.What not to put on an Employee evaluation: This employee has hit rock bottom and shows signs of starting to dig.
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Jul 2, 2011
Binding Master Table to TextBox and DateTimePicker and Binding Details Tables to Datagridview then Add / Update / Delete in both
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Feb 4, 2009
i'm working in VB.net,i'm newto vb.net. i have Datagridviewcomboxcolumn in my project, i want open a form at run time it should open when i press F2 key onDatagridviewcomboxcolumn. but Datagridviewcomboxcolumn has no any events. how
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Mar 29, 2011
I have datagridview containing 4 columns with 2 combobox. With the initial loading of datagridview I could select an item with the combobox, but when I tried to select an item with other combobox I've got an error showing "System.ArgumentException: DataGridViewComboBoxCell Value is not valid. To replace this default dialog please handle the dataerror event" . When ever I click it's always shows this message.
[Code]...
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Oct 15, 2009
i add a datagridviewcomboboxcolumn to my datatagridview and fill it with data like this: 1:a 2:b now, when user select an item i want to display only the number for value?what can i do? this is the project:download
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Dec 7, 2011
I have a dataGridView control with a DataGridViewComboBoxColumn column, the question is Which event of the dataGridView I must use to detect when the user change the selected value of a particular DataGridViewComboBoxColumn?
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Mar 29, 2011
I have datagridview containing 4 columns with 2 combobox. With the initial loading of datagridview I could select an item with the combobox, but when I tried to select an item with other combobox I've got an error showing "System.ArgumentException: DataGridViewComboBoxCell Value is not valid. To replace this default dialog please handle the dataerror event" . When ever I click it's always shows this message.
[Code]...
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Feb 19, 2009
I have a datagridviewcomboboxcolumn which has its .DataPropertyName set to a int field, its .DisplayMember set to a nvarchar field and its .ValueMember set to a int field on a lookup table. I have captured a dataerror which states that the control is trying to push the .DisplayMember(nvarchar) to the .DataPropertyName(int) field. When I load existing data it works fine. When I try to leave the datagridviewcomboboxcolumn after selecting a different value in it or leave it when I add a new row, I get the error. What am I doing wrong?
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Nov 1, 2009
i want a datagridviewcomboboxcolumn with 2 column.see the name in colum1 and choose code in column2 or something like this:see the name and code but on select just show code?!
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Jun 24, 2011
I need to get the selected value of a ComboBox in a DataGridView. I have it partially working, but I get a Null Reference Exception if I change a another ComboBox in the grid.[code]...
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Jan 18, 2010
i have a bound dgv. i populate a datagridviewcomboboxcolumn like this and add it to my dgv:
With comboboxcolumn
.DataPropertyName = "JobID"
.DataSource = RetrieveAllJobs()
.ValueMember = "JobID"
.DisplayMember = "Description"
[Code]...
I have one record in my Job table stored as <None>. How can i set that record to be a default value for each row?
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Apr 14, 2009
i have a datagridviewcomboboxcolumn that i am trying to populate. i set up the DataSource property using the wizard, there after i selected the DisplayMember from a corresponding drop down of fields from the table set up in the DataSource and then lastly i selected a field to be the ValueMember. problem is when i run my program datagridviewcomboboxcolumn is not populated.there is no drop down at all. what should i do to see my drop down or perhaps i need to set up in code.
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Apr 7, 2009
I read a lot topic in this forum about how to set a SelectedValue in aDataGridViewComboBoxColumn but nothing was useful for me. I dont know why, maaybe I dont know understand the problem.ets see: I have a DataGridView where one column is a DataGridViewComboboxColum. filled it. know read the selectedIndex with a EventHandelr and one Delegate created in the DataGridView EditingControlShowing event.This is the class with I Fill the DataSet for the ComboBox.
Public Class Expample1
Private code As String
Private name As String
[code].....
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Feb 15, 2012
Before I get started let me tell you guys that I have googled and read the documentation from the codebank. Especially jmcilhinney's post. Here is my problem. I have a nicely working datagridview on my form.
[Code]....
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Dec 9, 2010
how to get selected DataGridViewComboBoxColumn values in vb.net?
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Feb 15, 2012
I try to add now value to DataGridViewComboBoxColumn is already bound is there any way to do this at
its like add "AddNewItem" at the bottom of my dropdown list
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Jun 21, 2012
I'm trying to set the ValueMember property on a ComboBox column of a DataGridView, from the designer in VS2010.Every time I set the value, at the moment of leaving the cell, it revert to (none).Same thing happens with the DisplayMember property.
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Aug 15, 2011
My application is in VS2008 coded in Vb.net I have a datagridView on one of my form.This is filled from the database at the load event of the form.The datagridView also has a column of type DatagridViewComboboxcolumn. This DatagridViewComboboxcolumn already has 4 values added to it in its collection during design time.My requirement is when the data is loaded in the datagridview, the corresponding record which is supposed to be loaded in DatagridViewComboboxcolumn should compare its value with the value of DatagridViewComboboxcolumn.And if the value matches than that value should get selected in DatagridViewComboboxcolumn. The database will have the any of the 4 values that are already in DatagridViewComboboxcolumn.It just has to compare both values and select the matching value. Below is my Code
query= "Select Record1,Record2,Record3 from TableName"
cmd = New SqlCommand(query, connection)
dr = cmd.ExecuteReader()
[Code].....
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