MultiColumnCombo Filtering

[Mukesh Kapoor]

Hi,

Is there any way we can have multiple columns based filtering in MultiColumnCombo...

Example:

RadMultiColumnComboBoxElement

 

multiColumnComboElement = this.mcboSample.MultiColumnComboBoxElement;

 

multiColumnComboElement.EditorControl.MasterGridViewTemplate.AutoGenerateColumns =

false;

 

multiColumnComboElement.Columns.Add(

new GridViewTextBoxColumn("Code"));

 

multiColumnComboElement.Columns.Add(

new GridViewTextBoxColumn("RealName"));

 

multiColumnComboElement.Columns.Add(

new GridViewTextBoxColumn("NickName"));

 

multiColumnComboElement.Rows.Add(

"1011", "Paul Wight, Jr.", "Big Show");

 

multiColumnComboElement.Rows.Add(

"1022", "Carlos Colón, Jr.", "Carlito");

 

multiColumnComboElement.Rows.Add(

"2031", "Matthew Korklan", "Evan Bourne");

 

multiColumnComboElement.Rows.Add(

"2032", "Mike Mizanin", "The Miz");

 

multiColumnComboElement.Rows.Add(

"4101", "Paul Levesque", "Triple H");

 

 

 

this.mcboSample.AutoFilter = true;

 

 

this.mcboSample.DisplayMember = "NickName";

 

 

 

FilterExpression filter = new FilterExpression(this.mcboSample.DisplayMember, FilterExpression.BinaryOperation.AND,

 

 

GridKnownFunction.Contains, GridFilterCellElement.ParameterName);

 

filter.Parameters.Add(

GridFilterCellElement.ParameterName, true);

 

 

this.mcboSample.EditorControl.MasterGridViewTemplate.FilterExpressions.Add(filter);

The above works fine based on NickName but I would have like have one more filter option based on RealName as well.

Thanks

Br,
MKK

 

[Svett]

Hi Mukesh Kapoor,

Thank you for contacting us. You may find more information regarding filter expressions here. You can create a second filter expression as follows:

FilterExpression filterRealName = new FilterExpression("RealName", FilterExpression.BinaryOperation.AND, GridKnownFunction.Contains, GridFilterCellElement.ParameterName);
filterRealName.Parameters.Add(GridFilterCellElement.ParameterName, "Your value 1");

this.mcboSample.EditorControl.MasterGridViewTemplate.FilterExpressions.Add(filterRealName);

FilterExpression filterNickName = new FilterExpression("NickName", FilterExpression.BinaryOperation.AND, GridKnownFunction.Contains, GridFilterCellElement.ParameterName);
filterNickName.Parameters.Add(GridFilterCellElement.ParameterName, "Your Value 2");

this.mcboSample.EditorControl.MasterGridViewTemplate.FilterExpressions.Add(filterNickName);

Please provide the reason that the type of the parameter value is Boolean when the filtered columns is a string type?

Best wishes,
Svett
the Telerik team

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[dinesh kumar]

Hello,
still am having some problem while selecting the values from the GridViewMultiComboBoxColumn.

For Example:

In TextChanged event while filter the values it throws an exeception "The collection already contains a FilterExpresion for the field 'RealName'.

 

using

 

System.Windows.Forms; 
using Telerik.WinControls.UI;

 

 

 

using Telerik.WinControls.Data;

 

 

 

using System.Data;

 

 

 

using Telerik.WinControls;

 

 

using System.Threading;

 

 

 

 

namespace

 

 

MultiComboApp

 

{

 

 

public partial class Form3 : Form

 

 

 

 

{

 

 

public Form3()

 

{

InitializeComponent();

}

 

 

FilterExpression filterRealName;

 

 

 

FilterExpression filterNickName;

 

 

 

FilterExpression filterCode;

 

 

 

DataTable dtData;

 

 

 

private void LoadTable()

 

{

dtData =

 

new DataTable();

 

dtData.Columns.Add(

 

"Code");

 

dtData.Columns.Add(

 

"RealName");

 

dtData.Columns.Add(

 

"NickName");

 

dtData.Rows.Add(

 

new object[] { "1011", "dinesh", "din13" });

 

dtData.Rows.Add(

 

new object[] { "1022", "dineshkumar", "Guru23" });

 

dtData.Rows.Add(

 

new object[] { "2031", "Vijay", "Vin31" });

 

dtData.Rows.Add(

 

new object[] { "2032", "Vignesh", "Vick32" });

 

dtData.Rows.Add(

 

new object[] { "4101", "Senthil", "sen01" });

 

}

 

 

private void FillGrid()

 

{

 

 

 

GridViewMultiComboBoxColumn gvmcTest = new GridViewMultiComboBoxColumn();

 

gvmcTest.DataSource = dtData;

gvmcTest.AutoCompleteMode =

 

AutoCompleteMode.SuggestAppend;

 

gvmcTest.DropDownStyle =

 

RadDropDownStyle.DropDown;

 

gvTest.Columns.Add(gvmcTest);

gvTest.Columns[0].Width = 300;

filterRealName =

 

new FilterExpression("RealName", FilterExpression.BinaryOperation.OR,

 

 

 

GridKnownFunction.StartsWith, GridFilterCellElement.ParameterName);

 

filterNickName =

 

new FilterExpression("NickName", FilterExpression.BinaryOperation.OR,

 

 

 

GridKnownFunction.StartsWith, GridFilterCellElement.ParameterName);

 

filterCode =

 

new FilterExpression("Code", FilterExpression.BinaryOperation.OR,

 

 

 

GridKnownFunction.StartsWith, GridFilterCellElement.ParameterName);

 

}

 

 

 

private void Form1_Load(object sender, System.EventArgs e)

 

{

LoadTable();

FillGrid();

}

 

 

 

private void gvTest_CellEditorInitialized(object sender, GridViewCellEventArgs e)

 

{

 

 

RadMultiColumnComboBoxElement comboColumn = (RadMultiColumnComboBoxElement)this.gvTest.ActiveEditor;

 

comboColumn.AutoSizeDropDownToBestFit =

 

true;

 

comboColumn.AutoFilter =

 

true;

 

comboColumn.TextChanged +=

 

new System.EventHandler(editor_TextChanged);

 

}

 

 

void editor_TextChanged(object sender, System.EventArgs e)

 

{

 

 

RadMultiColumnComboBoxElement editor = (RadMultiColumnComboBoxElement)this.gvTest.ActiveEditor;

 

 

 

string sText = editor.Text.Trim();

 

 

 

// When the lock is obtained, add an element.

 

 

 

 

 

 

editor.EditorControl.MasterGridViewTemplate.FilterExpressions.Remove(filterRealName);

editor.EditorControl.MasterGridViewTemplate.FilterExpressions.Remove(filterNickName);

editor.EditorControl.MasterGridViewTemplate.FilterExpressions.Remove(filterCode);

filterRealName.Parameters.Clear();

filterNickName.Parameters.Clear();

filterCode.Parameters.Clear();

filterRealName.Parameters.Add(

 

GridFilterCellElement.ParameterName, sText);

 

filterNickName.Parameters.Add(

 

GridFilterCellElement.ParameterName, sText);

 

filterCode.Parameters.Add(

 

GridFilterCellElement.ParameterName, sText);

 

editor.EditorControl.MasterGridViewTemplate.FilterExpressions.Add(filterRealName);

editor.EditorControl.MasterGridViewTemplate.FilterExpressions.Add(filterNickName);

editor.EditorControl.MasterGridViewTemplate.FilterExpressions.Add(filterCode);

editor.EditorControl.GridElement.Update(

 

GridUINotifyAction.FilteringChanged);

 

}

 

}

}

 

[Julian Benkov]

Hello dinesh kumar,

Thank you for contacting us. You can try to Clear the FilterExpresionCollection before adding the new filter expressions:

void editor_TextChanged(object sender, System.EventArgs e)
{
    RadMultiColumnComboBoxElement editor = (RadMultiColumnComboBoxElement)this.gvTest.ActiveEditor;
    string sText = editor.Text.Trim();
    // When the lock is obtained, add an element.
    editor.EditorControl.MasterGridViewTemplate.FilterExpressions.Clear();

    filterRealName.Parameters.Clear();
    filterNickName.Parameters.Clear();
    filterCode.Parameters.Clear();

    filterRealName.Parameters.Add(GridFilterCellElement.ParameterName, sText);
    filterNickName.Parameters.Add(GridFilterCellElement.ParameterName, sText);
    filterCode.Parameters.Add(GridFilterCellElement.ParameterName, sText);

    editor.EditorControl.MasterGridViewTemplate.FilterExpressions.Add(filterRealName);
    editor.EditorControl.MasterGridViewTemplate.FilterExpressions.Add(filterNickName);
    editor.EditorControl.MasterGridViewTemplate.FilterExpressions.Add(filterCode);

    editor.EditorControl.GridElement.Update(GridUINotifyAction.FilteringChanged);
}

Sincerely yours,
Julian Benkov
the Telerik team

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[Dzimitry Kul]

Hi there,
I was actually using the same code snippet in the TextChanged event handler but still that does not work properly. It does filtering but when trying to select value from the filtered drop down list(in my example typing 'C' filters the list and displays 3 items in the drop down list: Cabbage, Carrot, Corn). But when I try to select any of them the first value from the DataSource(in my case it is List<string>) is picked up and displayed in the drop down automatically. Any ideas?

Thanks,
Dima

[Deyan]

Hello Dzimitry,

Although it is possible to define multiple filter expressions based on different columns in the grid view of the RadMultiColumnComboBox, this control is not particularly designed to handle this case. Each time a row is selected in the gridview the value of the current display member is considered and displayed in the text box part of the control. Currently, we do not recommend inserting multiple filter expressions in the grid view of the RadMultiColumnComboBox since undesired behavior will occur.

I would also like to inform you that we have plans to rewrite this control and extend its functionality (also addressing the limitations of the filtering functionality), but I cannot give you an exact estimation when this will happen.

Thanks for the understanding and do not hesitate to write back in case you have further questions.

Kind regards,
Deyan
the Telerik team

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[Levente Mihály]

The FilterExpression method seems to be obsoulted in Q2. Do you have an example code for FilterDescriptor?
Also in the documentation the obsoluted FilterExpression method is described only.

thanks,
Levente

[Deyan]

Hi Levente Mihály,

Thanks for contacting us and for your question.

Please take a look at the source code of the RadMultiColumnComboBox example in our Examples Application where you can find sample code demonstrating how to use the FilterDescriptor class to implement AutoFilter in the control:

FilterDescriptor descriptor = new FilterDescriptor(this.radMultiColumnComboBox1.DisplayMember, FilterOperator.StartsWith, string.Empty);            this.radMultiColumnComboBox1.EditorControl.FilterDescriptors.Add(descriptor);

I hope this helps.

Kind regards,
Deyan
the Telerik team

[Levente Mihály]

Thanks!

[John Seifert]

I am also trying to use multi column filtering.

in my case the code looks like:

public MainForm()
{

RadMultiColumnComboBoxElement

 

multiColumnComboElement = cbSecurity.MultiColumnComboBoxElement;

 

multiColumnComboElement.EditorControl.MasterGridViewTemplate.AutoGenerateColumns =

false;

 

multiColumnComboElement.Columns.Add(

new GridViewTextBoxColumn("SecurityId"));

 

multiColumnComboElement.Columns.Add(

new GridViewTextBoxColumn("Symbol"));

 

multiColumnComboElement.Columns.Add(

new GridViewTextBoxColumn("SymbolDescription"));
}

 

protected

 

override void OnLoad(EventArgs e)

 

{

 

base.OnLoad(e);

cbSecurity.AutoFilter =

true;

 

cbSecurity.DataSource = securities;

cbSecurity.DisplayMember =

"Symbol";

 

 

FilterDescriptor symbolDescriptor = new FilterDescriptor("Symbol", FilterOperator.StartsWith, string.Empty);

 

 

FilterDescriptor nameDescriptor = new FilterDescriptor("SymbolDescription", FilterOperator.StartsWith, string.Empty);

 

cbSecurity.EditorControl.FilterDescriptors.Add(symbolDescriptor);

cbSecurity.EditorControl.FilterDescriptors.Add(nameDescriptor);

cbSecurity.DropDownStyle =

RadDropDownStyle.DropDown;
}

The problem is that the filter only seems to work on "Symbol".  I would like to have it filter based on either column.  Is this possible?

 

[Martin Vasilev]

Hi John Seifert,

Thank you for writing.

RadMultiColumnComboBox does not supports auto-filtering based on more than one field. That is why adding two or more FilterDescriptors does not work as expected. We will consider including this feature in one of the next releases.

Let me know if you have any other questions.

Greetings,
Martin Vasilev
the Telerik team

[Georg]

Dear Telerik-Team,

I am using RadMultiColumnComboBox in combination with an FilterExpression. Now I want to change the the filter for the RadMultiColumnComboBox.

multiColumnComboBox .EditorControl.MasterGridViewTemplate.FilterExpressions.Clear();
FilterExpression myFilter = new FilterExpression("ScenarioID", FilterExpression.BinaryOperation.AND, GridKnownFunction.Contains, GridFilterCellElement.ParameterName);
filterSupplier.Parameters.Add(GridFilterCellElement.ParameterName, "txt");
multiColumnComboBox .EditorControl.MasterGridViewTemplate.FilterExpressions.Add(myFilter );

multiColumnComboBox .EditorControl.GridElement.Update(GridUINotifyAction.FilteringChanged);

Initially the filter is applier correctly, but when i am using the code shown, the filter is not correctly applied on the content.

Could you please give me some hints how to fix the problem?

Thx,
Georg

[Georg]

Dear Telerik-Team,

it seems that i had a problem with my code. It work now like a charm. But I've got an other problem. How can I programmatically select an item in the MultiColumnCombo and show the displayMember-Value correct in the MultiColumnCombo (so the value shoud be in the Text member of the Combo element).

Thanks,
Georg

[Martin Vasilev]

Hello Georg,

Thank you for writing.

I am not sure if I understand correctly your requirement. Do you want to set the selected item? If yes, then you can use one of the RadMultiColumnComboBox's SelectedIndex, SelectedItem or SelectedValue properties.

Let me know if you have any additional questions.

Best wishes,
Martin Vasilev
the Telerik team

[agung]

Hello...

Please help me. Can't filter by Kode. but filter by nama is work. 

For reference, here is my example again which is now working correctly

Imports Telerik.WinControls.UI
Imports Telerik.WinControls.Data
Imports Telerik.WinControls

Public Class RadForm2
#Region "WindowsGenerateForm"
    Inherits Telerik.WinControls.UI.RadForm

    'Form overrides dispose to clean up the component list.
    <System.Diagnostics.DebuggerNonUserCode()> _
    Protected Overrides Sub Dispose(ByVal disposing As Boolean)
        Try
            If disposing AndAlso components IsNot Nothing Then
                components.Dispose()
            End If
        Finally
            MyBase.Dispose(disposing)
        End Try
    End Sub

    'Required by the Windows Form Designer
    Private components As System.ComponentModel.IContainer

    'NOTE: The following procedure is required by the Windows Form Designer
    'It can be modified using the Windows Form Designer.
    'Do not modify it using the code editor.
    <System.Diagnostics.DebuggerStepThrough()> _
    Private Sub InitializeComponent()
        Me.RadGridView1 = New Telerik.WinControls.UI.RadGridView()
        Me.RadLabel1 = New Telerik.WinControls.UI.RadLabel()
        CType(Me.RadGridView1, System.ComponentModel.ISupportInitialize).BeginInit()
        CType(Me.RadGridView1.MasterTemplate, System.ComponentModel.ISupportInitialize).BeginInit()
        CType(Me.RadLabel1, System.ComponentModel.ISupportInitialize).BeginInit()
        CType(Me, System.ComponentModel.ISupportInitialize).BeginInit()
        Me.SuspendLayout()
        '
        'RadGridView1
        '
        Me.RadGridView1.BackColor = System.Drawing.Color.FromArgb(CType(CType(191, Byte), Integer), CType(CType(219, Byte), Integer), CType(CType(255, Byte), Integer))
        Me.RadGridView1.Cursor = System.Windows.Forms.Cursors.Default
        Me.RadGridView1.EnableHotTracking = False
        Me.RadGridView1.Font = New System.Drawing.Font("Segoe UI", 8.25!)
        Me.RadGridView1.ForeColor = System.Drawing.Color.Black
        Me.RadGridView1.ImeMode = System.Windows.Forms.ImeMode.NoControl
        Me.RadGridView1.Location = New System.Drawing.Point(17, 32)
        '
        'RadGridView1
        '
        Me.RadGridView1.MasterTemplate.AllowAddNewRow = False
        Me.RadGridView1.MasterTemplate.EnableGrouping = False
        Me.RadGridView1.MasterTemplate.EnableSorting = False
        Me.RadGridView1.Name = "RadGridView1"
        Me.RadGridView1.RightToLeft = System.Windows.Forms.RightToLeft.No
        Me.RadGridView1.ShowGroupPanel = False
        Me.RadGridView1.Size = New System.Drawing.Size(629, 236)
        Me.RadGridView1.TabIndex = 0
        Me.RadGridView1.Text = "RadGridView1"
        '
        'RadLabel1
        '
        Me.RadLabel1.Location = New System.Drawing.Point(110, 8)
        Me.RadLabel1.Name = "RadLabel1"
        Me.RadLabel1.Size = New System.Drawing.Size(58, 18)
        Me.RadLabel1.TabIndex = 1
        Me.RadLabel1.Text = "RadLabel1"
        '
        'RadForm2
        '
        Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
        Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
        Me.ClientSize = New System.Drawing.Size(669, 292)
        Me.Controls.Add(Me.RadLabel1)
        Me.Controls.Add(Me.RadGridView1)
        Me.Name = "RadForm2"
        '
        '
        '
        Me.RootElement.ApplyShapeToControl = True
        Me.Text = "RadForm2"
        CType(Me.RadGridView1.MasterTemplate, System.ComponentModel.ISupportInitialize).EndInit()
        CType(Me.RadGridView1, System.ComponentModel.ISupportInitialize).EndInit()
        CType(Me.RadLabel1, System.ComponentModel.ISupportInitialize).EndInit()
        CType(Me, System.ComponentModel.ISupportInitialize).EndInit()
        Me.ResumeLayout(False)
        Me.PerformLayout()

    End Sub
    Friend WithEvents RadGridView1 As Telerik.WinControls.UI.RadGridView
    Friend WithEvents RadLabel1 As Telerik.WinControls.UI.RadLabel
#End Region

    Sub New()
        InitializeComponent()
    End Sub

    Private KontakList As List(Of clsModel)
    Private tbSubscribed As Boolean = False
    Private Sub RadForm2_Load1(sender As Object, e As EventArgs) Handles Me.Load

        KontakList = GetAllKontak()
        With RadGridView1
            .Columns.Add("Nama")
            .Columns.Add("Alamat")
            .MultiSelect = True
            .AllowRowResize = False
            .AutoSizeColumnsMode = GridViewAutoSizeColumnsMode.Fill
        End With

        Dim Kode As New GridViewMultiComboBoxColumn()
        With Kode
            .Name = "Kode"
            .HeaderText = "Kode"
            .DisplayMember = "kode"
            .ValueMember = "kode"
            '.DataSource = KontakList
        End With

        RadGridView1.Columns.Insert(0, Kode)

        RadGridView1.Rows.AddNew()
    End Sub

    Private Sub RadGridView1_CellEditorInitialized(sender As Object, e As GridViewCellEventArgs) Handles RadGridView1.CellEditorInitialized


        Dim multiComboElement As RadMultiColumnComboBoxElement = TryCast(RadGridView1.ActiveEditor, RadMultiColumnComboBoxElement)

        If multiComboElement IsNot Nothing Then
            With multiComboElement
                .DataSource = KontakList
                .DropDownStyle = RadDropDownStyle.DropDown
                .EditorControl.MasterTemplate.BestFitColumns()
                .AutoSizeDropDownToBestFit = True
                .DisplayMember = "kode"
                .ValueMember = "kode"
                .Text = ""

                Dim fkode As FilterDescriptor = New FilterDescriptor("Kode", FilterOperator.StartsWith, String.Empty) ' FilterOperator.Contains, "")
                fkode.IsFilterEditor = False
                .EditorControl.FilterDescriptors.Add(fkode)

                Dim fnama As FilterDescriptor = New FilterDescriptor("Nama", FilterOperator.StartsWith, String.Empty) ' FilterOperator.Contains, "")
                fnama.IsFilterEditor = False
                .EditorControl.FilterDescriptors.Add(fnama)


                .EditorControl.FilterDescriptors.LogicalOperator = FilterLogicalOperator.[Or]
                .AutoCompleteMode = AutoCompleteMode.SuggestAppend
                .AutoFilter = True

                '.EditorControl.GridBehavior = New MyMultiColumnComboGridBehavior()


                If .EditorControl.FilterDescriptors.Count = 0 Then
                    .EditorControl.FilterDescriptors.Add(.DisplayMember, FilterOperator.StartsWith, [String].Empty)
                End If

                AddHandler .TextBoxElement.TextBoxItem.HostedControl.KeyDown, AddressOf TextBox_KeyDown

                'AddHandler .EditorControl.SelectionChanged, AddressOf cKontak_SelectedIndexChanged

            End With
        End If

        Dim tbEditor As RadTextBoxEditor = TryCast(RadGridView1.ActiveEditor, RadTextBoxEditor)
        If Not tbEditor Is Nothing Then
            If (Not tbSubscribed) Then
                tbSubscribed = True
                Dim tbElement As RadTextBoxEditorElement = CType(tbEditor.EditorElement, RadTextBoxEditorElement)
                AddHandler tbElement.KeyDown, AddressOf CellEditor_KeyDown
            End If
        End If
    End Sub

    Private Sub TextBox_KeyDown(ByVal sender As Object, ByVal e As KeyEventArgs)

        Select Case RadGridView1.Columns(RadGridView1.CurrentColumn.Index).Name
            Case "Kode"
                If e.KeyCode = Keys.Enter Then

                    Dim element As RadMultiColumnComboBoxElement = TryCast(RadGridView1.ActiveEditor, RadMultiColumnComboBoxElement)
                    If element.EditorControl.CurrentRow IsNot Nothing AndAlso element.EditorControl.CurrentRow.DataBoundItem IsNot Nothing Then
                        Dim kontak As clsModel = TryCast(element.EditorControl.CurrentRow.DataBoundItem, clsModel)

                        If kontak Is Nothing Then
                            Return
                        End If

                        Dim index As Integer = Me.KontakList.IndexOf(kontak)
                        element.SelectedIndex = index

                        RadGridView1.CurrentRow.Cells("Kode").Value = kontak.Kode
                        RadGridView1.CurrentRow.Cells("Nama").Value = kontak.Nama
                        RadGridView1.CurrentRow.Cells("Alamat").Value = kontak.Alamat

                        element.Invalidate(True)
                    End If

                    Dim currentCell = RadGridView1.Rows(RadGridView1.Rows.Count - 1).Cells(2)
                    currentCell.IsSelected = True
                    currentCell.BeginEdit()

                End If
                If e.KeyCode = Keys.Down Then
                    Dim element As RadMultiColumnComboBoxElement = TryCast(RadGridView1.ActiveEditor, RadMultiColumnComboBoxElement)
                    element.ShowPopup()
                End If
        End Select
    End Sub
    Private Sub CellEditor_KeyDown(ByVal sender As Object, ByVal e As KeyEventArgs)
        If e.KeyCode = Keys.Enter Then
            Select Case RadGridView1.Columns(RadGridView1.CurrentColumn.Index).Name
                Case "Alamat"
                    Dim rowInfo As New GridViewDataRowInfo(RadGridView1.MasterView)
                    Dim editor As RadTextBoxEditorElement = TryCast(sender, RadTextBoxEditorElement)

                    rowInfo.Cells("Kode").Value = ""
                    rowInfo.Cells("Nama").Value = ""
                    rowInfo.Cells("Alamat").Value = ""
                    RadGridView1.Rows.Add(rowInfo)

                    Dim currentCell = RadGridView1.Rows(RadGridView1.Rows.Count - 1).Cells(0)
                    currentCell.IsSelected = True
                    currentCell.BeginEdit()
            End Select
        End If
    End Sub

    'Private Sub cKontak_SelectedIndexChanged(sender As Object, e As EventArgs)
    '    Dim multiComboElement As RadMultiColumnComboBoxElement = TryCast(RadGridView1.ActiveEditor, RadMultiColumnComboBoxElement)
    '    Dim text As String
    '    text = multiComboElement.EditorControl.Rows(multiComboElement.SelectedIndex).Cells("Nama").Value
    '    RadLabel1.Text = text
    'End Sub

    Public Shared Function GetAllKontak() As IList(Of clsModel)
        Dim daftarKontak = New List(Of clsModel)()

        daftarKontak.Add(New clsModel() With {.Kode = "110001", .Nama = "AGUNG", .Alamat = "Jl. Bandung"})
        daftarKontak.Add(New clsModel() With {.Kode = "110002", .Nama = "BUDI", .Alamat = "Jl. Jakarta"})
        daftarKontak.Add(New clsModel() With {.Kode = "110003", .Nama = "ADI AGUNG", .Alamat = "Jl. Bumi Mondoroko"})
        daftarKontak.Add(New clsModel() With {.Kode = "110004", .Nama = "AHMAD BAJURI", .Alamat = "Jl. Gajayana"})
        daftarKontak.Add(New clsModel() With {.Kode = "110005", .Nama = "SAHARA IRA", .Alamat = "Jl. Sumbersari"})
        daftarKontak.Add(New clsModel() With {.Kode = "110006", .Nama = "JULIUS", .Alamat = "Jl. Puncak Joyo"})
        daftarKontak.Add(New clsModel() With {.Kode = "110007", .Nama = "IKAWATI", .Alamat = "Jl. Pahlawan"})
        daftarKontak.Add(New clsModel() With {.Kode = "110008", .Nama = "RONI STIAWAN", .Alamat = "Jl. Selorejo"})
        daftarKontak.Add(New clsModel() With {.Kode = "110009", .Nama = "JAKA SEMBUNG", .Alamat = "Jl. Sarangan"})
        daftarKontak.Add(New clsModel() With {.Kode = "110010", .Nama = "BRAHMA KUMBARA", .Alamat = "Jl. Bendungan Sutami"})
        daftarKontak.Add(New clsModel() With {.Kode = "110011", .Nama = "JAKA SENA", .Alamat = "Jl. Veteran"})
        daftarKontak.Add(New clsModel() With {.Kode = "110012", .Nama = "PRAMA ANGGANA", .Alamat = "Jl. Surabaya"})
        daftarKontak.Add(New clsModel() With {.Kode = "110013", .Nama = "WIRO SABLENG", .Alamat = "Jl. Kayu Tangan"})

        Return daftarKontak

    End Function


End Class

Imports System.ComponentModel

Public Class clsModel
    Private _kode As String
    Private _nama As String
    Private _alamat As String

    Public Event PropertyChanged As PropertyChangedEventHandler


    Public Property Kode() As String
        Get
            Return Me._kode
        End Get
        Set(value As String)
            If Me._kode <> value Then
                Me._kode = value
                OnPropertyChanged("Kode")
            End If
        End Set
    End Property
    Public Property Nama() As String
        Get
            Return Me._nama
        End Get
        Set(value As String)
            If Me._nama <> value Then
                Me._nama = value
                OnPropertyChanged("Nama")
            End If
        End Set
    End Property

    Public Property Alamat() As String
        Get
            Return Me._alamat
        End Get
        Set(value As String)
            If Me._alamat <> value Then
                Me._alamat = value
                OnPropertyChanged("Alamat")
            End If
        End Set
    End Property

    Protected Overridable Sub OnPropertyChanged(propertyName As String)
        RaiseEvent PropertyChanged(Me, New PropertyChangedEventArgs(propertyName))
    End Sub

End Class

[Hristo]

Hello Agung,

Thank you for writing.

I managed to use all of your code and build an example project. On my side the data is filtered correctly either by "Kode" or by "Nama".  In your last message you also mention that your example is now working correctly, this is what I also observed on my end.

Just in case I am sending you a sample project as well as a gif file showing the result on my side.

I hope this helps. Should you have further questions please do not hesitate to write back.

Regards,
Hristo Merdjanov
Telerik

[agung]

Yeah right, fix problem when I do update telerik in 2015 version. Code can't work in 2014 version.

Thx Hristo Merdjanov

[Veton]

Hello Project downalod 

[Dess | Tech Support Engineer, Principal]

Hello ,

Thank you for writing. 

Do you have any question related to this forum thread? I would be glad to help. 

Regards,
Dess
Telerik by Progress