A Combobox Population issue

A Combobox Population issue

By : Miroslav Kaděra
Date : November 22 2020, 11:12 AM
To fix this issue Put your code in SelectionChangeCommitted Instead of SelectedIndexChanged
code :
private void comboBox1_SelectionChangeCommitted(object sender, EventArgs e)
    FillDropDownList("select StateCode,StateName from States Where CountryCode = '" + comboBox1.SelectedValue + "'", comboBox2, "StateCode", "StateName");

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vb.net combobox population getting index of the 1st combobox

vb.net combobox population getting index of the 1st combobox

By : John
Date : March 29 2020, 07:55 AM
may help you . You should set the ValueMember of Combobox1 to be the ID you retrieved from the database and the use the SelectedValue property to retrieve the ID of the selected item.
I don't think it's gonna work unless you specify the ValueMember property when you databind Combobox1, so don't forget to do that first.
code :
Public Sub New()

    ' This call is required by the designer.

    ' Add any initialization after the InitializeComponent() call.

    Dim ds As New DataSet()
    Dim test As New OleDbDataAdapter("SELECT [ID], [名前] FROM [Tレイヤ管理]", DBConnections.PrimaryAccessDBConnection)
    Call test.Fill(ds, "testTable")

    Me.ComboBox1.DataSource = ds.Tables("testTable")
    Me.ComboBox1.ValueMember = "ID"
    Me.ComboBox1.DisplayMember = "名前"

    AddHandler Me.ComboBox1.SelectedValueChanged, AddressOf Something

End Sub

Private Sub Something(sender As Object, e As EventArgs)

    Call MessageBox.Show(String.Format("ID {0}", Me.ComboBox1.SelectedValue))

End Sub
    Dim selectedItem As DataRowView = CType(Me.ComboBox1.SelectedItem, DataRowView)

    Call MessageBox.Show(String.Format("ID {0} Name {1}", New Object() {selectedItem("ID"), selectedItem("名前")}))

End Sub
combobox population based on each other sql c#

combobox population based on each other sql c#

By : user6271055
Date : March 29 2020, 07:55 AM
I hope this helps you . i have 2 boxes, i'd like to populate the 1st from sql and the 2nd based on the first (querying sql too)
code :
SELECT DISTINCT CityName FROM City where CountryName =@CountryName 
Typescript - Combobox Population

Typescript - Combobox Population

By : danati
Date : March 29 2020, 07:55 AM
like below fixes the issue I have an app that contains a component called week-selector, it contains just a div with a heading and a
Combobox population

Combobox population

By : Viktors Jenovs
Date : March 29 2020, 07:55 AM
Any of those help I need help regarding combobox population (i have already made this for other application and it's working perfectly, don't know why this time is not working) , Try following ajax call,
code :
   url: 'justificacoes.php?Descricao='+$(this).val(),
   type: 'GET',
   success: function(result){
Combobox population problem

Combobox population problem

By : Tamás Katona
Date : March 29 2020, 07:55 AM
should help you out So I have a combobox - the designer code: , If you want to replace the current contents then you'll need to call
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