First gridview's selected row doesn't update second gridview's objectdatasource


I got 2 gridviews on a page, each with its own ObjectDataSource. The first gridview fills itself just normally, no problem there. The second gridview needs to fill itself with other data, where the primary key is the primary key of the selected row of the first gridview.


row: IDfield, x, y, z
row: IDfield, x, y, z (-> this row is selected)
row: IDfield, x, y, z


row:IDfield_of_selected_row_in_gridview1, a, b, c


I tried to do this by configuring the ObjectDataSource behind gridview2 with a parameter pointing to gridview1.selectedValue. (by using the configuration 'wizard')
This doesn't work, probably because the ObjectDataSource only gets filled once, when the page loads, but there is no row selected then so gridview2 remains empty. All the time.
When I select a row from my first gridview, nothing happens to gridview2.

I know that I can do this manually, the databinding (via the codebehind, GridView1_SelectedIndexChanged) and this works, it shows me the data. But then I get the problem that I can't edit it.

So, how do I make it so that whenever I select a row from my first gridview, the second ObjectDataSource refreshes itself and gets the data from my database where the primary key is the primary key of my selected gridview1 row?


I don't know if it helps, but i'll add my sourcecode.






1    <%@ Page Language="C#" MasterPageFile="~/admin/admin.master" AutoEventWireup="true" CodeFile="VoegBestellingToe.aspx.cs" Inherits="admin_VoegDataToe_VoegBestellingToe" Title="Untitled Page" %>
2    <asp:Content ID="Content1" ContentPlaceHolderID="cphMain" Runat="Server">
3        <table style="width: 100%">
4            <tr>
5                <td style="text-align: left; vertical-align: top; width: 500px;">
6                    <h2>Bestellingen</h2>
7                    <asp:GridView ID="GridView1" runat="server" AllowPaging="True" AllowSorting="True"
8                        AutoGenerateColumns="False" CellPadding="4" DataKeyNames="BestellingID" DataSourceID="ObjectDataSourceBestellingen"
9                        ForeColor="#333333" GridLines="None" 
10                       onselectedindexchanged="GridView1_SelectedIndexChanged">
11                       <FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
12                       <RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
13                       <Columns>
14                           <asp:CommandField ShowDeleteButton="True" ShowEditButton="True" 
15                               ValidationGroup="editBestelling" ShowSelectButton="True" />
16                           <asp:BoundField DataField="BestellingID" HeaderText="BestellingID" InsertVisible="False"
17                               ReadOnly="True" SortExpression="BestellingID" />
18                           <asp:TemplateField HeaderText="KlantID" SortExpression="KlantID">
19                               <EditItemTemplate>
20                                   <asp:DropDownList ID="DropDownList2" runat="server" DataSourceID="ObjectDataSourceKlantNaam"
21                                       DataTextField="Naam" DataValueField="KlantID" SelectedValue='<%# Bind("KlantID") %>'>
22                                   </asp:DropDownList>
23                               </EditItemTemplate>
24                               <ItemTemplate>
25                                   <asp:Label ID="Label1" runat="server" Text='<%# Bind("KlantID") %>'></asp:Label>
26                               </ItemTemplate>
27                           </asp:TemplateField>
28                           <asp:TemplateField HeaderText="Besteldatum" SortExpression="Besteldatum">
29                               <EditItemTemplate>
30                                   <asp:TextBox ID="TextBox2" runat="server" 
31                                       Text='<%# Bind("Besteldatum", "{0:d}") %>' ValidationGroup="editBestelling"></asp:TextBox>
32                                   <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" 
33                                       ControlToValidate="TextBox2" CssClass="error" 
34                                       ErrorMessage="Vul een datum in aub." ValidationGroup="editBestelling">*</asp:RequiredFieldValidator>
35                                   <asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" 
36                                       ControlToValidate="TextBox2" CssClass="error" 
37                                       ErrorMessage="Geef een correcte datum in aub." 
38                                       ValidationExpression="\d{1,2}\/\d{2}\/\d{4}" ValidationGroup="editBestelling">*</asp:RegularExpressionValidator>
39                               </EditItemTemplate>
40                               <ItemTemplate>
41                                   <asp:Label ID="Label2" runat="server" Text='<%# Bind("Besteldatum", "{0:d}") %>'></asp:Label>
42                               </ItemTemplate>
43                           </asp:TemplateField>
44                       </Columns>
45                       <PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
46                       <SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
47                       <HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
48                       <EditRowStyle BackColor="#999999" />
49                       <AlternatingRowStyle BackColor="White" ForeColor="#284775" />
50                   </asp:GridView>
51                   <br />
52                   <asp:ValidationSummary ID="ValidationSummary1" runat="server" CssClass="error" 
53                       ValidationGroup="editBestelling" />
54                   <br />
55                   <asp:DetailsView ID="DetailsView1" runat="server" AutoGenerateRows="False" CellPadding="4"
56                       DataKeyNames="BestellingID" DataSourceID="ObjectDataSourceBestellingen" DefaultMode="Insert"
57                       ForeColor="#333333" GridLines="None" Height="50px" Width="125px" >
58                       <FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
59                       <CommandRowStyle BackColor="#E2DED6" Font-Bold="True" />
60                       <RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
61                       <FieldHeaderStyle BackColor="#E9ECF1" Font-Bold="True" />
62                       <PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
63                       <Fields>
64                           <asp:BoundField DataField="BestellingID" HeaderText="BestellingID" InsertVisible="False"
65                               ReadOnly="True" SortExpression="BestellingID" />
66                           <asp:TemplateField HeaderText="KlantID" SortExpression="KlantID">
67                               <EditItemTemplate>
68                                   <asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("KlantID") %>'></asp:TextBox>
69                               </EditItemTemplate>
70                               <InsertItemTemplate>
71                                   <asp:DropDownList ID="DropDownList1" runat="server" DataSourceID="ObjectDataSourceKlantNaam"
72                                       DataTextField="Naam" DataValueField="KlantID" SelectedValue='<%# Bind("KlantID") %>'>
73                                   </asp:DropDownList>
74                               </InsertItemTemplate>
75                               <ItemTemplate>
76                                   <asp:Label ID="Label1" runat="server" Text='<%# Bind("KlantID") %>'></asp:Label>
77                               </ItemTemplate>
78                           </asp:TemplateField>
79                           <asp:TemplateField HeaderText="Besteldatum" SortExpression="Besteldatum">
80                               <EditItemTemplate>
81                                   <asp:TextBox ID="TextBox2" runat="server" Text='<%# Bind("Besteldatum") %>'></asp:TextBox>
82                               </EditItemTemplate>
83                               <InsertItemTemplate>
84                                    <asp:Calendar ID="Calendar1" runat="server" BackColor="White" BorderColor="White"
85                                       BorderWidth="1px" Font-Names="Verdana" Font-Size="9pt" ForeColor="Black" Height="190px"
86                                       NextPrevFormat="FullMonth" SelectedDate='<%# Bind("Besteldatum") %>' Width="350px">
87                                       <SelectedDayStyle BackColor="#333399" ForeColor="White" />
88                                       <TodayDayStyle BackColor="#CCCCCC" />
89                                       <OtherMonthDayStyle ForeColor="#999999" />
90                                       <NextPrevStyle Font-Bold="True" Font-Size="8pt" ForeColor="#333333" VerticalAlign="Bottom" />
91                                       <DayHeaderStyle Font-Bold="True" Font-Size="8pt" />
92                                       <TitleStyle BackColor="White" BorderColor="Black" BorderWidth="4px" Font-Bold="True"
93                                           Font-Size="12pt" ForeColor="#333399" />
94                                   </asp:Calendar>
95                               </InsertItemTemplate>
96                               <ItemTemplate>
97                                   <asp:Label ID="Label2" runat="server" Text='<%# Bind("Besteldatum") %>'></asp:Label>
98                               </ItemTemplate>
99                           </asp:TemplateField>
100                          <asp:CommandField ShowInsertButton="True" ValidationGroup="AddBestelling" />
101                      </Fields>
102                      <HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
103                      <EditRowStyle BackColor="#999999" />
104                      <AlternatingRowStyle BackColor="White" ForeColor="#284775" />
105                  </asp:DetailsView>
106                  <br />
107                  <asp:ValidationSummary ID="ValidationSummary2" runat="server" ValidationGroup="AddBestelling" />
108                  <br />
109                  <asp:ObjectDataSource ID="ObjectDataSourceBestellingen" runat="server" DeleteMethod="Delete"
110                      InsertMethod="Insert" OldValuesParameterFormatString="original_{0}" SelectMethod="GetBestellingen"
111                      TypeName="webshopTableAdapters.BestellingTableAdapter" UpdateMethod="Update">
112                      <DeleteParameters>
113                          <asp:Parameter Name="Original_BestellingID" Type="Int32" />
114                      </DeleteParameters>
115                      <UpdateParameters>
116                          <asp:Parameter Name="KlantID" Type="Int32" />
117                          <asp:Parameter Name="Besteldatum" Type="DateTime" />
118                          <asp:Parameter Name="Original_BestellingID" Type="Int32" />
119                      </UpdateParameters>
120                      <InsertParameters>
121                          <asp:Parameter Name="KlantID" Type="Int32" />
122                          <asp:Parameter Name="Besteldatum" Type="DateTime" />
123                      </InsertParameters>
124                  </asp:ObjectDataSource>
125                  <asp:ObjectDataSource ID="ObjectDataSourceKlantNaam" runat="server" DeleteMethod="Delete"
126                      InsertMethod="Insert" OldValuesParameterFormatString="original_{0}" SelectMethod="GetKlantnaam"
127                      TypeName="webshopTableAdapters.KlantTableAdapter" UpdateMethod="Update">
128                      <DeleteParameters>
129                          <asp:Parameter Name="Original_KlantID" Type="Int32" />
130                          <asp:Parameter Name="Original_Voornaam" Type="String" />
131                          <asp:Parameter Name="Original_Achternaam" Type="String" />
132                          <asp:Parameter Name="Original_Geslacht" Type="String" />
133                          <asp:Parameter Name="Original_Straat" Type="String" />
134                          <asp:Parameter Name="Original_Nr" Type="Int16" />
135                          <asp:Parameter Name="Original_Bus" Type="String" />
136                          <asp:Parameter Name="Original_Postcode" Type="String" />
137                          <asp:Parameter Name="Original_Plaats" Type="String" />
138                          <asp:Parameter Name="Original_Telefoon_privé" Type="String" />
139                          <asp:Parameter Name="Original_Telefoon_mobiel" Type="String" />
140                          <asp:Parameter Name="Original_Telefoon_werk" Type="String" />
141                          <asp:Parameter Name="Original_Email" Type="String" />
142                      </DeleteParameters>
143                      <UpdateParameters>
144                          <asp:Parameter Name="Voornaam" Type="String" />
145                          <asp:Parameter Name="Achternaam" Type="String" />
146                          <asp:Parameter Name="Geslacht" Type="String" />
147                          <asp:Parameter Name="Straat" Type="String" />
148                          <asp:Parameter Name="Nr" Type="Int16" />
149                          <asp:Parameter Name="Bus" Type="String" />
150                          <asp:Parameter Name="Postcode" Type="String" />
151                          <asp:Parameter Name="Plaats" Type="String" />
152                          <asp:Parameter Name="Telefoon_privé" Type="String" />
153                          <asp:Parameter Name="Telefoon_mobiel" Type="String" />
154                          <asp:Parameter Name="Telefoon_werk" Type="String" />
155                          <asp:Parameter Name="Email" Type="String" />
156                          <asp:Parameter Name="Original_KlantID" Type="Int32" />
157                          <asp:Parameter Name="Original_Voornaam" Type="String" />
158                          <asp:Parameter Name="Original_Achternaam" Type="String" />
159                          <asp:Parameter Name="Original_Geslacht" Type="String" />
160                          <asp:Parameter Name="Original_Straat" Type="String" />
161                          <asp:Parameter Name="Original_Nr" Type="Int16" />
162                          <asp:Parameter Name="Original_Bus" Type="String" />
163                          <asp:Parameter Name="Original_Postcode" Type="String" />
164                          <asp:Parameter Name="Original_Plaats" Type="String" />
165                          <asp:Parameter Name="Original_Telefoon_privé" Type="String" />
166                          <asp:Parameter Name="Original_Telefoon_mobiel" Type="String" />
167                          <asp:Parameter Name="Original_Telefoon_werk" Type="String" />
168                          <asp:Parameter Name="Original_Email" Type="String" />
169                      </UpdateParameters>
170                      <InsertParameters>
171                          <asp:Parameter Name="Voornaam" Type="String" />
172                          <asp:Parameter Name="Achternaam" Type="String" />
173                          <asp:Parameter Name="Geslacht" Type="String" />
174                          <asp:Parameter Name="Straat" Type="String" />
175                          <asp:Parameter Name="Nr" Type="Int16" />
176                          <asp:Parameter Name="Bus" Type="String" />
177                          <asp:Parameter Name="Postcode" Type="String" />
178                          <asp:Parameter Name="Plaats" Type="String" />
179                          <asp:Parameter Name="Telefoon_privé" Type="String" />
180                          <asp:Parameter Name="Telefoon_mobiel" Type="String" />
181                          <asp:Parameter Name="Telefoon_werk" Type="String" />
182                          <asp:Parameter Name="Email" Type="String" />
183                      </InsertParameters>
184                  </asp:ObjectDataSource>
185              </td>
186              <td style="text-align: left; vertical-align: top; padding-left: 50px;">
187                  <h2>Bestelinhoud</h2>
188                  <asp:GridView ID="GridView2" runat="server" AllowPaging="True" 
189                      AllowSorting="True" AutoGenerateColumns="False" CellPadding="4" 
190                      DataKeyNames="BestellingID,ArtikelID" 
191                      DataSourceID="ObjectDataSourceBestellingInhoud" ForeColor="#333333" 
192                      GridLines="None" onrowediting="GridView2_RowEditing" Visible="False">
193                      <FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
194                      <RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
195                      <Columns>
196                          <asp:CommandField ShowDeleteButton="True" ShowEditButton="True" />
197                          <asp:BoundField DataField="BestellingID" HeaderText="BestellingID" 
198                              ReadOnly="True" SortExpression="BestellingID" />
199                          <asp:BoundField DataField="ArtikelID" HeaderText="ArtikelID" ReadOnly="True" 
200                              SortExpression="ArtikelID" />
201                          <asp:BoundField DataField="Aantal" HeaderText="Aantal" 
202                              SortExpression="Aantal" />
203                      </Columns>
204                      <PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
205                      <SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
206                      <HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
207                      <EditRowStyle BackColor="#999999" />
208                      <AlternatingRowStyle BackColor="White" ForeColor="#284775" />
209                  </asp:GridView>
210                  <asp:ObjectDataSource ID="ObjectDataSourceBestellingInhoud" runat="server" 
211                      DeleteMethod="Delete" InsertMethod="Insert" 
212                      OldValuesParameterFormatString="original_{0}" 
213                      SelectMethod="GetBestellingInhoudByBestellingID" 
214                      TypeName="webshopTableAdapters.BestellingInhoudTableAdapter" 
215                      UpdateMethod="Update">
216                      <DeleteParameters>
217                          <asp:Parameter Name="Original_BestellingID" Type="Int32" />
218                          <asp:Parameter Name="Original_ArtikelID" Type="Int32" />
219                          <asp:Parameter Name="Original_Aantal" Type="Int32" />
220                      </DeleteParameters>
221                      <UpdateParameters>
222                          <asp:Parameter Name="Aantal" Type="Int32" />
223                          <asp:Parameter Name="Original_BestellingID" Type="Int32" />
224                          <asp:Parameter Name="Original_ArtikelID" Type="Int32" />
225                          <asp:Parameter Name="Original_Aantal" Type="Int32" />
226                      </UpdateParameters>
227                      <SelectParameters>
228                          <asp:ControlParameter ControlID="GridView1" Name="BestellingID" 
229                              PropertyName="SelectedValue" Type="Int32" />
230                      </SelectParameters>
231                      <InsertParameters>
232                          <asp:Parameter Name="BestellingID" Type="Int32" />
233                          <asp:Parameter Name="ArtikelID" Type="Int32" />
234                          <asp:Parameter Name="Aantal" Type="Int32" />
235                      </InsertParameters>
236                  </asp:ObjectDataSource>
237              </td>
238          </tr>
239      </table>
241  </asp:Content>
11/4/2008 12:49:05 PM 72751 articles. 3 followers. Follow

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You should be doing this via the code-behind. What happens when you try to edit?

Thanks, Ed

Microsoft MVP - ASP/ASP.NET

11/4/2008 1:22:11 PM
I don't know how to do this, I don't have any code in my "GridView2_RowEditing" method yet... 
What I have so far is that I can show data in my GridView2 using following code:
1    protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)
2    {
3      GridView gridview = (GridView) sender;
4      int ID = (int) gridview.SelectedValue;
6      webshopTableAdapters.OrderContentTableAdapter OrderContentTableAdapter = new webshopTableAdapters.OrderContentTableAdapter();
7      DataTable dt = OrderContentTableAdapter.GetOrderContentByID(ID);
9      if (dt.Rows.Count != 0){
10       GridView2.DataBind();
11       GridView2.Visible = true;
12     }
13     else
14       GridView2.Visible = false;
15   }
Also, I still have my ObjectDataSource like in my previous post. With the code behind my "GridView1_SelectedIndexChanged" and my ObjectDataSource, GridView2 gets populated and when I select 'edit' it gets editable.
When I click update however, it doesn't save the data. It just keeps the value it had before I started updating.
11/5/2008 11:57:29 AM

All you should have to do within your SelectedIndexChanged handler is to call the DataBind method of GridView2. The ObjectDataSource will handle the rest. If you need to be able to hide the GridView, then do this within the ObjectDataSource.Selected event handler.

Thanks, Ed

Microsoft MVP - ASP/ASP.NET

11/5/2008 1:03:55 PM

 When I remove all my code out of the GridView1_SelectedIndexChanged method and just leave in "Gridview2.DataBind", nothing happens when I select a row from my gridview1.
The ObjectDataSource bound to my gridview2 is still set up the same as in my first post.

Any idea's why this doesn't work?

11/5/2008 4:28:27 PM

My apologies, I was a bit to hasty. Smile I forgot to turn on the gridview2 's visibility, so obviously I didn't see any results. Smile

Like you said, only the databind() method is needed for gridview2 to show what I want.

The fields also get editable when I click "edit" on my gridview2, but when I say "update" it doesn't update. The edited field just reverts to its old value.
I tried putting the databind() method in the GridView2_RowEditing method, but that doens't cut it.

Any suggestions?




11/5/2008 4:52:12 PM

Hi Grizly ,

I don't think you need to write any code when you connect GridView with objectdatasource.

You said you forget to turn on the gridview2's visibility, so try to remove the databind() method.

If you put one break point in Update( int Aantal,int Original_BestellingID, int Original_ArtikelID, int Original_Aantal ) method , does it retrieve the correct value ? I think it should work , these parameters begin with Original will get original value and the Aantal parameter will retrieve new value !



Samu Zhang
Microsoft Online Community Support

Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question.
11/6/2008 7:22:54 AM

 Hi Samu Zhang

You're right about the fact that I can just leave out the databind() method in my gridview1_selectedIndexChanged() method.  I thought this was necessary because when I load my page, there is no row selected and so the objectdatasource bound to my detailsview2 doesn't get any data making it necessary to databind everytime a row got selected in my gridview1.

Which Update method do you mean? The "Updated" / "Updating" method of my ObjectDataSource2 or the "RowUpdating" / "RowUpdated" method of my GridView2?

Right now I thought I needed to write "databind();" in my gridview2_rowEDITING method, but this isn't the case then I guess.




11/8/2008 7:43:53 AM

I fixed it Smile Don't ask me how... But it just checked everything in my DataSet and ObjectDataSource and it just works now... Really bizarre... But nevertheless, great Stick out tongue




11/8/2008 8:29:56 PM

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second update panel's hidden field data loses when first update panel's procedure clicked
I am using v2.0 - my ajax enable web site have 2 update panels 1st Update panel updates a hidden field placed in the 2nd update panel - ok hiden fild is get updated edit procedure associated with in the first update panel then again try to read the value from the hidden field (it is database editing procedure, the hidden filed contain the Primary key). but when the edit procedure is clicked, hidden filed looses the data, the following event is get called when edit_procedure() is clicked Protected Sub hfTenantId_ValueChanged(ByVal sender As Object, ByV...

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