Adding dynamic data behavior to gridviewewo[Answered] RSS

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  karang

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  Adding dynamic data behavior to gridviewewo

  Mar 23, 2014 07:27 AM|karang|LINK

  Hi All 

  I want to add dynamic data behavior in grid view. For that I have followed these steps

  1. Create an entity framework.

  2. Bind grid view with entity framework using following code

  protected void Page_Load(object sender, EventArgs e)
      {
          if (!IsPostBack)
          {
              MyDDExampleEntities entities = new MyDDExampleEntities();
              gvTest.DataSource = (from element in entities.Classes select element);
              gvTest.DataBind();
  
          }
      }

  Then added the code on page_init event

  protected void Page_Init(object sender, EventArgs e)
      {
          gvTest.EnableDynamicData(typeof(Class));        
      }

  In aspx page I have added following code

  <asp:GridView ID="gvTest" runat="server" AutoGenerateColumns="false">
      <Columns>
          <asp:TemplateField>
              <ItemTemplate>
                  <asp:DynamicControl ID="ctrlClassId" DataField="ClassId" runat="server" />
              </ItemTemplate>
          </asp:TemplateField>
          <asp:TemplateField>
              <ItemTemplate>
                  <asp:DynamicControl ID="ctrlClassCode" DataField="ClassCode" runat="server" />
              </ItemTemplate>
          </asp:TemplateField>
          <asp:TemplateField>
              <ItemTemplate>
                  <asp:DynamicControl ID="ctrlClassDisplayName" DataField="ClassDisplayName" runat="server" />
              </ItemTemplate>
          </asp:TemplateField>
      </Columns>
  </asp:GridView>    

  But I could see the records but I could not see the dynamic behavior. Am I missing anything?

  Regards
  Karan Gupta
  
  http://gyansangrah.com
  
  Please click "Mark as Answer" if this helped you.
• • Reply
  karang

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  Re: Adding dynamic data behavior to gridviewewo

  Mar 23, 2014 01:14 PM|karang|LINK

  Hi

  I have moved a little ahead now I have bound the grid view with entity framework instead of code behind (so I have removed Page load event). Now my aspx page looks like

  <asp:DynamicDataManager ID="src1" runat="server">
          <DataControls>
              <asp:DataControlReference ControlID="gvTest" />
          </DataControls>
      </asp:DynamicDataManager>
      <asp:GridView ID="gvTest" runat="server" AutoGenerateColumns="false" DataSourceID="EntityDataSource1">
          <Columns>
              <asp:TemplateField>
                  <ItemTemplate>
                      <asp:DynamicControl ID="ctrlClassId" DataField="ClassId" runat="server" />
                  </ItemTemplate>
              </asp:TemplateField>
              <asp:TemplateField>
                  <ItemTemplate>
                      <asp:DynamicControl ID="ctrlClassCode" DataField="ClassCode" runat="server" />
                  </ItemTemplate>
              </asp:TemplateField>
              <asp:TemplateField>
                  <ItemTemplate>
                      <asp:DynamicControl ID="ctrlClassDisplayName" DataField="ClassDisplayName" runat="server" />
                  </ItemTemplate>
              </asp:TemplateField>
          </Columns>
      </asp:GridView>
      <asp:EntityDataSource ID="EntityDataSource1" runat="server" ConnectionString="name=MyDDExampleEntities"
          DefaultContainerName="MyDDExampleEntities" EntitySetName="Classes">
      </asp:EntityDataSource>

  But now I am getting following error - "Specified method is not supported." and here is the stack trace

  [NotSupportedException: Specified method is not supported.]
  System.Web.DynamicData.ModelProviders.SimpleDataModelProvider.CreateContext() +29
  System.Web.DynamicData.MetaTable.CreateContext() +16
  System.Web.DynamicData.MetaTable.System.Web.DynamicData.IMetaTable.CreateContext() +10
  System.Web.DynamicData.<>c__DisplayClass4.<RegisterControlInternal>b__1(Object sender, EntityDataSourceContextCreatingEventArgs e) +14
  System.Web.UI.WebControls.EntityDataSourceView.OnContextCreating(EntityDataSourceContextCreatingEventArgs e) +112
  System.Web.UI.WebControls.EntityDataSourceView.ConstructContext() +62
  System.Web.UI.WebControls.EntityDataSourceView.ExecuteSelect(DataSourceSelectArguments arguments) +76
  System.Web.UI.DataSourceView.Select(DataSourceSelectArguments arguments, DataSourceViewSelectCallback callback) +21
  System.Web.UI.WebControls.DataBoundControl.PerformSelect() +143
  System.Web.UI.WebControls.BaseDataBoundControl.DataBind() +74
  System.Web.UI.WebControls.GridView.DataBind() +4
  System.Web.UI.WebControls.BaseDataBoundControl.EnsureDataBound() +66
  System.Web.UI.WebControls.CompositeDataBoundControl.CreateChildControls() +75
  System.Web.UI.Control.EnsureChildControls() +102
  System.Web.UI.Control.PreRenderRecursiveInternal() +42
  System.Web.UI.Control.PreRenderRecursiveInternal() +175
  System.Web.UI.Control.PreRenderRecursiveInternal() +175
  System.Web.UI.Control.PreRenderRecursiveInternal() +175
  System.Web.UI.Control.PreRenderRecursiveInternal() +175
  System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2496

  I have searched but didn't find anything. Please help me on this.

  Regards
  Karan Gupta
  
  http://gyansangrah.com
  
  Please click "Mark as Answer" if this helped you.
• • Reply
  sjnaughton

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  Re: Adding dynamic data behavior to gridviewewo

  Mar 23, 2014 03:12 PM|sjnaughton|LINK

  I think you are missing the set metatable.

  gvTest.SetMetaTable(table);

  See my blog C# Bits | Twitter @sjnaughton
  Always seeking an elegant solution.
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  karang

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  Re: Adding dynamic data behavior to gridviewewo

  Mar 23, 2014 09:41 PM|karang|LINK

  Hi

  Gridview doesn't contain the definition of SetMetaTable method.

  Regards
  Karan Gupta
  
  http://gyansangrah.com
  
  Please click "Mark as Answer" if this helped you.
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  karang

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  Re: Adding dynamic data behavior to gridviewewo

  Mar 24, 2014 01:57 PM|karang|LINK

  Hi

  One more step :). I have inherited the class with INamingContainer and found the method SetMetaData(). So I have changed the code to the following

  public partial class _Default : System.Web.UI.Page, INamingContainer
  {
      protected void Page_Init(object sender, EventArgs e)
      {
          gvTest.EnableDynamicData(typeof(Class));
          gvTest.SetMetaTable(EntityDataSource1.GetTable());
      }
  
  }
  

  But still I am getting the same error.

  Regards
  Karan Gupta
  
  http://gyansangrah.com
  
  Please click "Mark as Answer" if this helped you.
• • Reply
  sjnaughton

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  Re: Adding dynamic data behavior to gridviewewo

  Mar 24, 2014 06:42 PM|sjnaughton|LINK

  the ASP.Net GridView already implements INamingContainer, is you grid the asp.net Gridview if not I woudl not expect it to work.

  See my blog C# Bits | Twitter @sjnaughton
  Always seeking an elegant solution.
• • Reply
  karang

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  Re: Adding dynamic data behavior to gridviewewo

  Mar 24, 2014 09:44 PM|karang|LINK

  Hi

  I have tried using SetMetaTable method without using INamingContainer but I didn't find the method. But once I have inherited the class I can use the method. In the sample project I am using asp.net grid view.

  Regards
  Karan Gupta
  
  http://gyansangrah.com
  
  Please click "Mark as Answer" if this helped you.
• • Reply
  sjnaughton

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  Re: Adding dynamic data behavior to gridviewewo

  Mar 25, 2014 09:42 AM|sjnaughton|LINK

  try watching this Create rich, data-driven Web apps with ASP.NET 4.5 Web Forms from Build 2011 where i think Damien Edward demonstrates Model Binding with GridView.

  See my blog C# Bits | Twitter @sjnaughton
  Always seeking an elegant solution.