VS 2008 - User Control With DataSource, DisplayMember And ValueMember Property
Nov 19, 2009
I need to create a user control which can be used in my all projects. I have created a user control with a TextBox Control and a ListBox Control. My goal is that as soon as any character is pressed in the textbox, Listbox's item which starts from that character should be selected. I have done all the coding needed for the functionality but my problem is that when I add this usercontrol to my form, I should be able to change the DataSource, displaymember and valuemember properties at designtime. But I cannot see these properties when I add the control on the form.
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Oct 27, 2009
How can I create the property... type the combobox? for now I found alone this that it goes in mistake
[Code]....
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Jun 11, 2009
Is there any way to get the ComboBox SelectedIndex based on SelectedValue when Datasource property is set with DisplayMember and ValueMember?
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Jul 7, 2008
I have binded a datatable to a combobox, using DataSource, DisplayMember and ValueMember properties. Now I try to set the combobox to a preset value using comboBox.SelectedValue = value. Nothing happens however.
[Code]...
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Apr 9, 2010
Is there any control like this? I want it to be just like a textbox but I can bind it and be able to set its DisplayMember and ValueMember.
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Sep 1, 2011
I have DataGridViewCombobox column in my winform. i have bound that comboboxcolumn from database by setting its DataSource, DisplayMember and ValueMember property.
i want to set DisplayMember based on ValueMember. just like we do in normal combobox like
Combobox.SelectedValue = "12"
I tried following
gridAttendance.Rows[0].cells[2].value = dsAttendance.Tables[0].Rows[0]["Id"].ToString();
but it doesn't work...
"It throws an error saying datagridviewcomboboxcell value is not value"
i also tried handling DataError event of GridView, but still it doesn't work
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Jun 24, 2010
using vb.net 2010 and WPF
I've got an Access 2007 table with names of people and the unique ID # of their sponsoring agencies. There is a second table in the accdb with the sponsoring agencies and their unique ID #. How do I display the actual agency name, and not the ID #, in a combobox?
What I want to see is this:
John Doe ABC Corporation (John Doe in textbox, ABC in combo)
The results I'm getting is this however:
John Doe 10
I'm using the code below to display the agency and name. I know this is not the right code but don't know what other code to use.
DirectCast(e.DataRepeaterItem.Controls("cboSponsoringAgency"),
ComboBox).Text
= currItem("SponsoringAgencyID").ToString
[Code]....
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May 16, 2012
I have 2 tables in a Access 2010 database. tblA that stores speciesID and weight and tblB has SpeciesID and SpeciesName.Now I want a Combobox that shows SpeciesName and a textbox that shows weight.A have one query that select everyting from tblB, qryB.I have created a form frmA:
in this I have
Combobox1
txt1[code]......
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Jun 10, 2009
i have a form contains DataGridView and one of its components is a ComboBox, the problem is i wanna save the ValueMember instead of the DisplayMember in the database.
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Mar 14, 2009
I have a database that is connected with my form. There is a combobox on top of the form and with that I can select the category I want.
Now when I search or I do something else it selects records that aren't from the category I selected, so this category should change when I do such things. Nothing happens when I do something. It should select the right category that belong to the record that is selected now.
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Mar 14, 2009
I have a database that is connected with my form. There is a combobox on top of the form and with that I can select the category I want. Now when I search or I do something else it selects records that aren't from the category I selected, so this category should change when I do such things. Nothing happens when I do something. It should select the right category that belong to the record that is selected now.
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Apr 12, 2009
My question: i have a combobox which i would like to populate with data from a database. The table looks like this: pkIntCompany (the pk) & chrCompanyName You see nothing special.
I would like all the records in a combobox. When a user selects one of the value, i would like to show the pk and the combobox in a textbox (seperate). Is there someone who has some example code?
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Jun 2, 2011
I can create a combobox with autocomplete and it works fine. However I want to return a code value instead of the description much the same as a normal combobox where there is a displaymember and a valuemember. Is this possible?
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Mar 19, 2011
i have a dataset that return 3 column ID as integer Picture as Image and Name as string.i have a combobox that i need to databind it and i need this combobox show Picture and than Name as DisplayMember and ID as ValueMember.i find something in internet that show how add image in combobox but i don't know how can i databind the combobox with image.
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Apr 23, 2009
I have a couple of combo boxes, one that I have hand coded the query to load and another that uses the databinding feature. My problem is (well one of them!) that when the form loads, it displays the data stored in the table (ValueMember) and not the display member, the display members are shown in drop down once selected. Basically, I have a table that feeds the combo box with two columns both strings "Code" and "Reason" I want to display the reason when the form loads, not the code...
[Code]...
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Oct 12, 2011
I have an editable ComboBox with a validation on the Text property to make sure manually entered info is valid.EDIT: All I want to do is populate the .Text property with the ValueMember of a selection rather than the DisplayMember I also have the .Items populated with valid entries having the DisplayMember and ValueMember set.My DisplayMember is a caption along with the data, and the ValueMember is the data itself.So Items might be:
(DisplayMember, ValueMember)
"Foo - 1ab2" , "1ab2"
"Bar - 3cd4" , "3cd4"
I had a validation on the text which can also validate manual user input like "5ef6" The problem I'm having is that if the user selects an item from the combobox it populates the text field with the DisplayMember property (ex: "Foo - 1ab2") which will fail validation.I have tried to manually set the .Text property with the SelectedValue or the SelectedItem.Value on each of the three relevant combobox events to no avail.I would like that the .Text of the ComboBox get populated with the .ValueMember of the item when selected rather than the .DisplayMember
EDIT: I cannot validate by trying to extrapolate the value from the caption. I send the Text off to a service to be validated.
void FillMyCombo
{
KeyValuePair<string, string> listValue1 = new KeyValuePair<string, string>("Foo - 1ab2" , "1ab2")
KeyValuePair<string, string> listValue2 = new KeyValuePair<string, string>("Bar - 3cd4" , "3cd4")
[code].....
The user can manually enter something like "5ef6" which will pass validation.But when they select an item from the list, rather than manually entering it, the .Text property gets filled with the caption and not the value ... so it will contain "Foo - 1ab2" and that will fail validation. I cannot change the validation method to "infer" the value from the caption. I have no control over that service. All I'm after is the displayed value EDIT: Say a user selects "Foo - 1ab2" from the dropdown list, I want the text in the box to say "1ab2" EDIT: I have also tried to set the .Text property in code but I can't seem to make it work in any of the ComboBox events. how to programmaticly set the .Text property (and make it commit!) on a selection event they will also answer this question.
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Jan 19, 2010
I am trying to get the valuemember of my combobox but it just won't work. I have tried a lot of things (won't post them all here) can somebody just show me how to do this?
Private Sub cmbGroup_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles cmbGroup.SelectedIndexChanged ' Get valuemember here End Sub
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Jan 4, 2011
I have a function that changes the text in the DisplayMember of a ListBox by first changing the DataTable DataSource and then reloading the datasource.Trouble is, editing any value under the first item causes the DisplayMember values to 'vanish' from sight - they are still there as you can click on them, they just can't be viewed!
RevenueDT.Select("ID = " & SelectedDTID)(0)("Name") = NewValue
With RevenueListBox
.DataSource = Nothing
.DataSource = RevenueDT
[code]...
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Dec 30, 2009
I want a listview has above properties. Is it possible ? In fact i have a database which have a field is image ( binary array) I want a listview displaymember is name and value member is image.
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Apr 14, 2010
During Loading a form, I bind a datasource property of the DGV to the bindingsource, and then set the fillweight property of the DGV columns. But, after form being shown, earlier set properties are being reseted to default = 100.
The procedure is like:
1. TestForm.Show()
2. TestForm_Load(...) Hnadles MyBase.Load
DGV.DataSource = bindingsource
DGV.columns(0).fillweight = 80
DGV.columns(1).fillweight = 120
3. Me.close() (Closing the form which called TestForm.Show()
And now I have visible a TestForm with well binded datasouce seeing all the columns, but their fillweith property was beeing reseted...
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Feb 13, 2010
I have two tables "Person" and "Alias" in a one to many relationship. I have a DGV for "Person" and want to use a combobox for the Aliases. I also have a textbox and a button for the user to type the alias name and click the button to add the alias name to the combobox and update the dataset. I keep getting the "Items collection cannot be modified when the DataSource property is set." Error. But if i use a DGV instead of a combobox for aliases, I have no errors and everything works fine. If I remove the datasource property for the combobox it will not get populated with the data already entered, so how, or can I, set it up where the combobox gets populated when the form loads and able to add items to the combobox????
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Dec 30, 2011
If I need access to the value of a user control's property BEFORE PreRender, would I need to base the custom control off of one of the preexisting data controls (repeater, listview,etc.)?One of my user controls features a gridview control that is configured based on the user control's properties on which it resides. Several of the key properties alter the SQL Statement for the underlying recordsource. I'm now in a situation where the property that sets the WHERE statement for the SQL Statement needs to tied to a value in the user control's parent FormView. Think of the formview as displaying a customer detail record. The user control takes the customer's account number and then displays data from a related table such as Customer Contact Names. Since the gridview is created before the control's prerender event, working within the prerender event doesn't seem efficient.
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Jan 30, 2009
I have created a form dynamically. On this from I have added two user controls. The first user control(Mylabel) is inherated from label and the second one(Mybotton) from button. On my Label control I have added a method as follows:
Public ReadOnly Property ctlStatus()
Get
Return (m_Selected)
End Get
[code]....
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Jul 10, 2010
I created one web user control with property named "ReadonlyField" with boolean datatype. I am able to use in my web pages and now i wanted to add a description to that property so that i dont need to explain each time to my team member what is that property's intention.
I got following snippet in c# but didnt find any equivalent in vb.net and also not sure whether it will work or not.
[Description("My Description")]
public int MyIntProperty
{
get {..}
[Code].....
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Feb 4, 2011
I built a VB ASP.NET 1.1 Web User Control that contains several properties. I want these properties to display in the VS2003 IDE Properties window, for easy manipulation. However, none of the properties appear! How do I make them show in the IDE?I am a C# guy, and not very familiar with VB, so this is probably a no-brainer. Here's a property, including attributes:
Private _priceHigh As String = "2000"
<Browsable(True), Category("SearchProperties"), Description("Foo"), DefaultValue("2000")> _
Public Property PriceHigh() As String
[code].....
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Feb 9, 2009
I'd want a text box that at design time the developer can set a datatype property so only a value matching that datatype can be entered at runtime (e.g. If we made the datatype property of a textbox an integer then the user could only enter numbers into that textbox)In additiion I need a further property to replace ".Text". .Text always holds the entered value as a string, I want the new property to contain what has been written into the textbox but as the datatype that has been selected at design time.
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Nov 15, 2009
Nothing binds to my user control. It will bind to other controls. code for UC property:
#Region "IsOn"
'Public Sub IsOnValue_Changed Handles
Public Sub Me_IsOnChanged() Handles Me.IsOnChanged
[Code].....
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Dec 18, 2009
I have created a control inherited from a label.I want to add some items to the control at design-time and use a property TypeEditor to set those properties. I have no problems creating my properties for values for the custom control itself, but how do I best get access to the items (in this case more controls) that I want to add to the control?Explained another way; take the ribbon control toolbar in Office 2007. It appears to be a "label" that hosts buttons as members of its controls collection.
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Feb 25, 2012
I develped custom DateTimepicker in vb.net that users can pick date in persian lanquege with it.in my main contrl class i have bindable property with name "Value". here is the property code :
<Editor(GetType(TypeEditor), GetType(UITypeEditor)), Browsable(True), _
Bindable(True)> _
Public Property Value As String
[code].....
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Jul 12, 2010
I created one web user control with property named "ReadonlyField" with boolean datatype. I am able to use in my web pages and now i wanted to add a description to that property so that i dont need to explain each time to my team member what is that property's intention.[code]...
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