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conditional Alternating Item Style

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Grid
This is a migrated thread and some comments may be shown as answers.
DANA
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DANA asked on 01 Feb 2012, 08:35 AM

hi,

just like james in this thread, I need to mark certain rows according to a condition.
every time the user opens and watch an idea, the row of the watched idea should be in lightblue.
that for itself works great.
My problem is, that when I click a row it gets lightblue, but then- when I  click another row, the previous row change color to white.
How can I keep the condition working for alternating item style too?

that my code :

<telerik:RadGrid Skin="innovation" EnableEmbeddedSkins="false" ID="RadGrid1" 
              dir="rtl" HeaderStyle-ForeColor="White" AllowFilteringByColumn="True"  
    AllowSorting="True" AllowPaging="True"  BorderColor="#74ABAE" BackColor="White"
    BorderWidth="2px" runat="server" HeaderStyle-Font-Size="Small"  ItemStyle-Font-Size="Small"
    AlternatingItemStyle-Font-Size="Small" ItemStyle-BackColor="White" ItemStyle-ForeColor="Black"
     PageSize="7" AutoGenerateColumns="False" PagerStyle-Font-Size="Small" 
     AlternatingItemStyle-ForeColor="Black"
   Culture="Hebrew" GridLines="Vertical" Width="666px" 
      style="margin-right: 30px">
    <HeaderContextMenu CssClass="GridContextMenu GridContextMenu_Black">
    </HeaderContextMenu>
        <ItemStyle BackColor="White" Font-Size="Small" ForeColor="Black" />
    <PagerStyle mode="NumericPages" ShowPagerText="false"></PagerStyle>
    <MasterTableView>
    <CommandItemSettings ExportToPdfText="Export to Pdf"></CommandItemSettings>
           <Columns>
                 <telerik:GridBoundColumn CurrentFilterFunction="Contains"
                     DataField="IDEA_CODE" UniqueName="IDEA_CODE" HeaderText="ideanum"
                      AutoPostBackOnFilter="true" DataType="System.Int32"
                    </telerik:GridBoundColumn>
                   <telerik:GridBoundColumn UniqueName="LINK" DataField="LINK" HeaderText="" 
                    DataType="System.String" Display="false"
                    </telerik:GridBoundColumn>
                 <telerik:GridBoundColumn DataField="ROWNUM" HeaderText="#" Visible="false"
                 AutoPostBackOnFilter="true" CurrentFilterFunction="Contains"
                    DataType="System.Int32">
                </telerik:GridBoundColumn>
                <telerik:GridBoundColumn DataField="SENDER_ID" HeaderText="id"
                UniqueName="SENDER_ID" AutoPostBackOnFilter="true" CurrentFilterFunction="Contains"
                    DataType="System.String">
                </telerik:GridBoundColumn>
                <telerik:GridBoundColumn DataField="FULLNAME" HeaderText="namef"
                AutoPostBackOnFilter="true" CurrentFilterFunction="Contains"
                    DataType="System.String">
                </telerik:GridBoundColumn>
                <telerik:GridBoundColumn DataField="SUBJECT" HeaderText="sub"
                AutoPostBackOnFilter="true" CurrentFilterFunction="Contains"
                    DataType="System.String">
                </telerik:GridBoundColumn>
                 <telerik:GridBoundColumn DataField="DESCRIPTION" HeaderText="status"
                 AutoPostBackOnFilter="true" CurrentFilterFunction="Contains"
                    DataType="System.String">
                </telerik:GridBoundColumn>
                <telerik:GridBoundColumn DataField="SEND_DATE" HeaderText="sdate"
                AutoPostBackOnFilter="true" CurrentFilterFunction="Contains"
                    DataType="System.DateTime" DataFormatString="{0:dd/MM/yy}">
                </telerik:GridBoundColumn>                 
                  <telerik:GridImageColumn HeaderText="comments" UniqueName="FBIMG">
                </telerik:GridImageColumn>    
         
     </Columns>
        <RowIndicatorColumn FilterControlAltText="Filter RowIndicator column">
        <HeaderStyle Width="20px">
        </HeaderStyle>
        </RowIndicatorColumn>
        <ExpandCollapseColumn FilterControlAltText="Filter ExpandColumn column">
        <HeaderStyle Width="20px"></HeaderStyle>
        </ExpandCollapseColumn>
        <EditFormSettings>
        <EditColumn FilterControlAltText="Filter EditCommandColumn column"></EditColumn>
        </EditFormSettings>
        </MasterTableView>
              <SelectedItemStyle BackColor="LightBlue" />
        <HeaderStyle ForeColor="White"></HeaderStyle>
               <ClientSettings>
               <Selecting AllowRowSelect="true" />
               <ClientEvents OnRowSelected="OpenIdea" />                   
                </ClientSettings>
        <FilterMenu EnableImageSprites="False"></FilterMenu>
    </telerik:RadGrid>
Protected Sub RadGrid1_ItemDataBound(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridItemEventArgs) Handles RadGrid1.ItemDataBound
        Try
            If TypeOf e.Item Is GridDataItem Then
                Dim item As GridDataItem = CType(e.Item, GridDataItem)
                Dim idea_code As Integer = CInt(item("IDEA_CODE").Text)
                If (StoredProcedures.Is_Watched_Idea(idea_code, userID) = True) Then 'if the ideas was watched then
                    item.BackColor = Drawing.Color.LightBlue 'color the row
                     End If
….
End sub

by the way- I tried disable alternating row in client settings but all I got is a transparent back color for the alternative rows.

can anyone help with that?
kind regards, Dana

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Shinu
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answered on 01 Feb 2012, 09:07 AM
Hello Dana,

RadGrid loses its current selection when the data is sorted, a new group or filter is added, or when the current page changes. Check the following help documentation which explains more about this.
Persisting the Selected Rows Server-side on Sorting/Paging/Filtering/Grouping.

-Shinu.
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DANA
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answered on 01 Feb 2012, 10:05 AM
Hi ,
I still don't get it- I'm not sorting or changing anything, I simply click on an other row, and I want to keep the previous style for rows that are watched.
there's no postback or anything and I'm not
example:
if I load the grid and my first 3 rows are blue (meaning I watched these ideas before according to my condition) and than the next 3 are white, by clicking a blue row and then a white row, the blue row - as an alternate row- becomes white (and the white becomes blue because of the condition I added)
Is there a way to store my style for each row? or maybe there's an event I can use that I can rebind my grid after every row click so it'll check my condition everytime?

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Maria Ilieva
Telerik team
answered on 06 Feb 2012, 10:12 AM
Hi Dana,

Possible approach in your scenario is to loop through all rows in the RadGrid PreREnder event , change the item values and set the needed colors there.
This should keep the row color even after the postback of the selection.
Give it a try and let me know if this helps.

Greetings,
Maria Ilieva
the Telerik team
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yasmin Ahmad
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answered on 05 Mar 2019, 08:17 AM

you can remove the alternative row style from your grid 

adding this code 

  <ClientSettings EnableAlternatingItems="false">

that what i was  did .

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Shinu
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DANA
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Maria Ilieva
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