Refresh grid and groups

[Mattia]

Hi,
I'm trying to refresh my grid and groups

<telerik:RadGrid ID="HomeRadGrid" runat="server" OnNeedDataSource="HomeRadGrid_NeedDataSource"
          EnableEmbeddedSkins="False" AllowPaging="True" AllowAutomaticUpdates="false"
          AllowAutomaticInserts="false" AllowAutomaticDeletes="false" AllowSorting="True"
          AllowFilteringByColumn="True" CellSpacing="0" Culture="it-IT" GridLines="None"
          OnItemCommand = "HomeRadGrid_ItemCommand" OnGroupsChanging="HomeRadGrid_GroupsChanging"
          OnItemDataBound = "HomeRadGrid_ItemDataBound"
          Skin="MySkin" ShowGroupPanel="True">
          <PagerStyle Mode="NextPrevAndNumeric" />
          <MasterTableView AutoGenerateColumns="False"  CommandItemDisplay="Top" DataKeyNames="Id">
           <ColumnGroups>
                      <telerik:GridColumnGroup Name="GeneralInformation" HeaderText="General Information"
                          HeaderStyle-HorizontalAlign="Center" />
                      <telerik:GridColumnGroup Name="WarningsIcon" HeaderText="Warnings"
                          HeaderStyle-HorizontalAlign="Center" />
                  </ColumnGroups>
          <CommandItemSettings RefreshText="" ShowAddNewRecordButton="false" />
              <GroupByExpressions>
                  <telerik:GridGroupByExpression>
                      <SelectFields>
                          <telerik:GridGroupByField FieldAlias="Company" FieldName="Cdc.CompanyCode"></telerik:GridGroupByField>
                      </SelectFields>
                      <GroupByFields>
                          <telerik:GridGroupByField FieldName="Cdc.CompanyCode" SortOrder="Descending"></telerik:GridGroupByField>
                      </GroupByFields>
                  </telerik:GridGroupByExpression>
                  <telerik:GridGroupByExpression>
                      <SelectFields>
                          <telerik:GridGroupByField FieldAlias="Project" FieldName="Cdc.Code" ></telerik:GridGroupByField>
                      </SelectFields>
                      <GroupByFields>
                          <telerik:GridGroupByField FieldName="Cdc.Code"></telerik:GridGroupByField>
                      </GroupByFields>
                  </telerik:GridGroupByExpression>
              </GroupByExpressions>
              <Columns>
                  <telerik:GridBoundColumn DataField="Cdc.CompanyCode" HeaderText="Company Code" SortExpression="Cdc.CompanyCode"
                      UniqueName="Cdc.CompanyCode" Visible="false" ColumnGroupName="GeneralInformation" >
                  </telerik:GridBoundColumn>
                  <telerik:GridBoundColumn DataField="Cdc.Code" HeaderText="Project" SortExpression="Cdc.Code"
                      UniqueName="Cdc.Code" Visible="false" ColumnGroupName="GeneralInformation" >
                  </telerik:GridBoundColumn>

                 ...
              </Columns>
                <NestedViewTemplate>
                     ...
                  </NestedViewTemplate>
          </MasterTableView>
          <ClientSettings ReorderColumnsOnClient="True" AllowDragToGroup="True" AllowColumnsReorder="True">
          <ClientEvents OnRowDblClick="RowDblClick"></ClientEvents>
              <Selecting AllowRowSelect="False"></Selecting>
              <Resizing AllowRowResize="True" AllowColumnResize="True" EnableRealTimeResize="True"
                  ResizeGridOnColumnResize="False"></Resizing>
          </ClientSettings>
          <GroupingSettings ShowUnGroupButton="true"></GroupingSettings>
      </telerik:RadGrid>

C#

/// <summary>
       /// Eventi sul grid
       /// </summary>
       /// <param name="sender"></param>
       /// <param name="e"></param>
       protected void HomeRadGrid_ItemCommand(object sender, GridCommandEventArgs e)
       {
           switch (e.CommandName)
           {
               case "RebindGrid":

                   //tolgo i filtri
                   foreach (GridColumn column in HomeRadGrid.MasterTableView.OwnerGrid.Columns)
                   {
                       column.CurrentFilterFunction = GridKnownFunction.NoFilter;
                       column.CurrentFilterValue = string.Empty;
                   }
                   HomeRadGrid.MasterTableView.FilterExpression = string.Empty;

                   //tolgo i gruppi
                   HomeRadGrid.MasterTableView.GroupByExpressions.Clear();
                   //Refresh datagrid
                   HomeRadGrid.Rebind();
                   break;


       }

[Deyan Enchev]

Hi Stefania,

Thank you for contacting Telerik support and sharing you code.

It seems that the logic you were executing on ItemCommand could be optimized for achieving the desired result. Could you review the attached sample project I have created, based on your code, and verify does it meet your requirements? I have also recorded a video showing my actions, in case I am missing something let me know.

In addition please note that when executing server logic within the RadGrid using ItemCommand handler the initiator should be a command coming from the RadGrid itself. In this scenario this would be the Refresh button, part of the default set that our RadGrid’s command item feature has.

Looking forward to your reply.


Regards,
Deyan Enchev
Telerik