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Problem with RadGrid

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Grid
This is a migrated thread and some comments may be shown as answers.
Sasha
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Sasha asked on 18 Apr 2019, 02:06 PM

Hello!
I have a grid with frozen columns and grouping. When the grid loads without horizontal scrolling and has hidden columns, I discovered two problems:
1) after displaying hidden columns manually and when horizontal scrolling becomes available - we can scroll the grid data, but the grid headers do not scroll
2) the “colspan” parameter is incorrectly calculated if some columns were hidden when the page was loaded.

it is my .aspx code:

01.<%@ Page Language="VB" AutoEventWireup="false" CodeBehind="Default.aspx.vb" Inherits="TelerikWebApp1._Default" %>
02. 
03.<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
04. 
06.<head runat="server">
07.    <title></title>
08.    <telerik:RadStyleSheetManager id="RadStyleSheetManager1" runat="server" />
09.</head>
10.<body>
11.    <form id="form1" runat="server">
12.    <telerik:RadScriptManager ID="RadScriptManager1" runat="server">
13.        <Scripts>
14.            <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.Core.js" />
15.            <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQuery.js" />
16.            <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQueryInclude.js" />
17.        </Scripts>
18.    </telerik:RadScriptManager>
19.    <telerik:RadGrid RenderMode="Lightweight" ID="RadGrid1" runat="server" EnableHeaderContextMenu="true"
20.        ClientSettings-ClientEvents-OnColumnShown="ColumnShown" ClientSettings-ClientEvents-OnColumnHidden="ColumnHidden">
21.        <ClientSettings>
22.            <Scrolling AllowScroll="True" UseStaticHeaders="True" FrozenColumnsCount="4"></Scrolling>
23.        </ClientSettings>
24.        <MasterTableView ></MasterTableView>
25.        <HeaderStyle Width="200px" />
26.    </telerik:RadGrid>
27.    <script type="text/javascript">
28.        //Put your JavaScript code here.
29.        function ColumnHidden(sender, eventArgs) {}
30.        function ColumnShown(sender, eventArgs) {}
31.    </script>
32.    <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">
33.    </telerik:RadAjaxManager>
34.    <div>
35. 
36.    </div>
37.    </form>
38.</body>
39.</html>

and it is my .vb code

001.Imports Telerik.Web.Data
002.Imports Telerik.Web.UI
003. 
004.Partial Class _Default
005.    Inherits System.Web.UI.Page
006. 
007.    Private Sub _Default_LoadComplete(sender As Object, e As EventArgs) Handles Me.LoadComplete
008.        RadGrid1.MasterTableView.GetColumnSafe("Custom1").Display = False
009.        RadGrid1.MasterTableView.GetColumnSafe("Custom2").Display = False
010.        RadGrid1.MasterTableView.GetColumnSafe("Custom3").Display = False
011.        RadGrid1.MasterTableView.GetColumnSafe("Custom4").Display = False
012.        RadGrid1.MasterTableView.GetColumnSafe("Custom5").Display = False
013.        RadGrid1.MasterTableView.GetColumnSafe("Custom6").Display = False
014.        RadGrid1.MasterTableView.GetColumnSafe("Custom7").Display = False
015.        RadGrid1.MasterTableView.GetColumnSafe("Custom8").Display = False
016.        RadGrid1.MasterTableView.GetColumnSafe("Custom9").Display = False
017.        'RadGrid1.MasterTableView.GetColumnSafe("MainMaterial").Display = False
018.        RadGrid1.MasterTableView.GetColumnSafe("ComponentOrder").Display = False
019.    End Sub
020. 
021.    Private Sub _Default_PreRender(sender As Object, e As EventArgs) Handles Me.PreRender
022. 
023.    End Sub
024. 
025.    Private Sub RadGrid1_NeedDataSource(sender As Object, e As GridNeedDataSourceEventArgs) Handles RadGrid1.NeedDataSource
026.        Dim list As List(Of PersonData) = New List(Of PersonData)
027.        list.Add(New PersonData(1, "Name1", 11, "", "", "", "", "", "", "", "", "", "1", "Test", 1))
028.        list.Add(New PersonData(2, "Name2", 12, "", "", "", "", "", "", "", "", "", "1", "Test", 1))
029.        list.Add(New PersonData(3, "Name3", 13, "", "", "", "", "", "", "", "", "", "1", "Test", 0))
030.        list.Add(New PersonData(4, "Name4", 14, "", "", "", "", "", "", "", "", "", "1", "Test", 0))
031.        RadGrid1.DataSource = list
032. 
033.        RadGrid1.GroupingEnabled = True
034.        RadGrid1.GroupingSettings.ShowUnGroupButton = False
035.        RadGrid1.ShowGroupPanel = False
036.        RadGrid1.GroupingSettings.GroupContinuesFormatString = ""
037. 
038.        RadGrid1.MasterTableView.GroupByExpressions.Clear()
039.        Dim selfield As GridGroupByField = New GridGroupByField()
040.        selfield.FieldName = "MainMaterial"
041.        'Do not use GetsystemText here its defined in Itemdatabound.
042.        selfield.HeaderText = "Main Material"
043.        Dim grpfield As GridGroupByField = New GridGroupByField()
044.        grpfield.FieldName = "MainMaterial"
045.        grpfield.SortOrder = GridSortOrder.Descending
046.        Dim expression3 As GridGroupByExpression = New GridGroupByExpression()
047.        expression3.GroupByFields.Add(grpfield)
048.        expression3.SelectFields.Add(selfield)
049.        RadGrid1.MasterTableView.GroupByExpressions.Add(expression3)
050.        Dim selfield2 As GridGroupByField = New GridGroupByField()
051.        selfield2.FieldName = "ComponentDescription"
052.        selfield2.HeaderText = "Material Type"
053.        Dim grpfield2 As GridGroupByField = New GridGroupByField() With {.FieldName = "ComponentOrder"}
054.        Dim grpfield3 As GridGroupByField = New GridGroupByField() With {.FieldName = "ComponentDescription"}
055.        Dim expression4 As GridGroupByExpression = New GridGroupByExpression()
056.        expression4.GroupByFields.Add(grpfield2)
057.        expression4.GroupByFields.Add(grpfield3)
058.        expression4.SelectFields.Add(selfield2)
059.        RadGrid1.MasterTableView.GroupByExpressions.Add(expression4)
060. 
061.    End Sub
062. 
063.    Public Class PersonData
064.        Private _ID As Int16
065.        Private _Name As String
066.        Private _Age As Int16
067.        Private _Custom1 As String
068.        Private _Custom2 As String
069.        Private _Custom3 As String
070.        Private _Custom4 As String
071.        Private _Custom5 As String
072.        Private _Custom6 As String
073.        Private _Custom7 As String
074.        Private _Custom8 As String
075.        Private _Custom9 As String
076. 
077.        Private _MainMaterial As Int16
078.        Private _ComponentOrder As String
079.        Private _ComponentDescription As String
080. 
081.        Public Sub New(ByVal id As Int16, ByVal name As String, ByVal age As Int16,
082.                       ByVal custom1 As String,
083.                       ByVal custom2 As String,
084.                       ByVal custom3 As String,
085.                       ByVal custom4 As String,
086.                       ByVal custom5 As String,
087.                       ByVal custom6 As String,
088.                       ByVal custom7 As String,
089.                       ByVal custom8 As String,
090.                       ByVal custom9 As String,
091.                       ByVal componentOrder As String,
092.                       ByVal componentDescription As String,
093.                       ByVal mainMaterial As Int16)
094. 
095.            _ID = id
096.            _Name = name
097.            _Age = age
098. 
099.            _ComponentOrder = componentOrder
100.            _ComponentDescription = componentDescription
101.            _MainMaterial = mainMaterial
102. 
103.        End Sub
104. 
105.        Public Property ID() As Int16
106.            Get
107.                Return _ID
108.            End Get
109.            Set(ByVal Value As Int16)
110.                _ID = Value
111.            End Set
112.        End Property
113. 
114.        Public Property MainMaterial() As Int16
115.            Get
116.                Return _MainMaterial
117.            End Get
118.            Set(ByVal Value As Int16)
119.                _MainMaterial = Value
120.            End Set
121.        End Property
122. 
123.        Public Property ComponentOrder() As String
124.            Get
125.                Return _ComponentOrder
126.            End Get
127.            Set(ByVal Value As String)
128.                _ComponentOrder = Value
129.            End Set
130.        End Property
131. 
132.        Public Property ComponentDescription() As String
133.            Get
134.                Return _ComponentDescription
135.            End Get
136.            Set(ByVal Value As String)
137.                _ComponentDescription = Value
138.            End Set
139.        End Property
140. 
141.        Public Property Name() As String
142.            Get
143.                Return _Name
144.            End Get
145.            Set(ByVal Value As String)
146.                _Name = Value
147.            End Set
148.        End Property
149. 
150.        Public Property Custom1() As String
151.            Get
152.                Return _Custom1
153.            End Get
154.            Set(ByVal Value As String)
155.                _Custom1 = Value
156.            End Set
157.        End Property
158. 
159.        Public Property Custom2() As String
160.            Get
161.                Return _Custom2
162.            End Get
163.            Set(ByVal Value As String)
164.                _Custom2 = Value
165.            End Set
166.        End Property
167. 
168.        Public Property Custom3() As String
169.            Get
170.                Return _Custom3
171.            End Get
172.            Set(ByVal Value As String)
173.                _Custom3 = Value
174.            End Set
175.        End Property
176. 
177.        Public Property Custom4() As String
178.            Get
179.                Return _Custom4
180.            End Get
181.            Set(ByVal Value As String)
182.                _Custom4 = Value
183.            End Set
184.        End Property
185. 
186.        Public Property Custom5() As String
187.            Get
188.                Return _Custom5
189.            End Get
190.            Set(ByVal Value As String)
191.                _Custom5 = Value
192.            End Set
193.        End Property
194. 
195.        Public Property Custom6() As String
196.            Get
197.                Return _Custom6
198.            End Get
199.            Set(ByVal Value As String)
200.                _Custom6 = Value
201.            End Set
202.        End Property
203. 
204.        Public Property Custom7() As String
205.            Get
206.                Return _Custom7
207.            End Get
208.            Set(ByVal Value As String)
209.                _Custom7 = Value
210.            End Set
211.        End Property
212. 
213.        Public Property Custom8() As String
214.            Get
215.                Return _Custom8
216.            End Get
217.            Set(ByVal Value As String)
218.                _Custom8 = Value
219.            End Set
220.        End Property
221. 
222.        Public Property Custom9() As String
223.            Get
224.                Return _Custom9
225.            End Get
226.            Set(ByVal Value As String)
227.                _Custom9 = Value
228.            End Set
229.        End Property
230. 
231.        Public Property Age() As Int16
232.            Get
233.                Return _Age
234.            End Get
235.            Set(ByVal Value As Int16)
236.                _Age = Value
237.            End Set
238.        End Property
239. 
240.    End Class
241. 
242.End Class



And also I have a question about the work of the grouping. In our project we have a lot of grids, and all of them have the same markup(it is example https://prnt.sc/ndptj5), but the two grids have a different markup to grouping the rows(it is different example https://prnt.sc/ndpw3r). I do not know which parameter makes these changes, can you help me?

I am using the latest version of Telerik - 2019.1.215.45

No answers yet. Maybe you can help?

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