Populate DetailsView From GridView Select DataKeyNames

Here i'm explaining how to Populate DetailsView From GridView In Asp.Net based on selection of a record in GridView using Multiple DataKeyNames

In this example GridView is populated from a table called Website using SqlDataSource.

I have defined multiple(3) comma separated DataKeyNames Property in GridView source.

These DataKeyNames properties will be used to fetch the record related to respective DataKey from 3 tables to populate 3 DetailsViews.

HTML SOURCE OF THE PAGE

   1:  <form id="form1" runat="server">

   2:  <div>

   3:  <asp:GridView ID="GridView1" runat="server" 

   4:                DataKeyNames="Record,ResponseID,Source_id"  

   5:                AutoGenerateColumns="False" 

   6:                DataSourceID="SqlDataSource1" 

   7:                OnSelectedIndexChanged="GridView1_SelectedIndexChanged">

   8:  <Columns>

   9:  <asp:CommandField ShowSelectButton="True" />

  10:  <asp:BoundField DataField="Record" HeaderText="Record"/>

  11:  <asp:BoundField DataField="ResponseID" HeaderText="ResponseID"/>

  12:  <asp:BoundField DataField="Source_id" HeaderText="Source_id"/>

  13:  <asp:BoundField DataField="Remarks" HeaderText="Remarks"/>

  14:  </Columns>

  15:  </asp:GridView>

  16:   

  17:  <asp:SqlDataSource ID="SqlDataSource1" runat="server" 

  18:  ConnectionString="<%$ ConnectionStrings:ConnectionString %>"

  19:  SelectCommand="Select Record, App_id as ResponseID, 

  20:                 Source_id,Remarks from Website">

  21:  </asp:SqlDataSource>

  22:   

  23:  <table><tr><td>

  24:  <asp:DetailsView ID="DetailsView1" runat="server" 

  25:                   DataKeyNames="Record" AutoGenerateRows="False"

  26:                   DataSourceID="SqlDataSource2">

  27:  <Fields>

  28:  <asp:BoundField DataField="Record" HeaderText="Record"/>

  29:  <asp:BoundField DataField="Name" HeaderText="Name"/>

  30:  </Fields>

  31:  </asp:DetailsView>

  32:   

  33:  <asp:SqlDataSource ID="SqlDataSource2" runat="server" 

  34:  ConnectionString="<%$ ConnectionStrings:ConnectionString %>"

  35:  SelectCommand="SELECT [Record], [Name] FROM 

  36:                 [Applications] WHERE ([Record] = @Record)">

  37:  <SelectParameters>

  38:  <asp:ControlParameter ControlID="GridView1" Name="Record" 

  39:                        PropertyName="SelectedValue"

  40:                        Type="String" />

  41:  </SelectParameters>

  42:  </asp:SqlDataSource></td>

  43:   

  44:  <td>

  45:  <asp:DetailsView ID="DetailsView2" runat="server" 

  46:                   DataKeyNames="App_id" AutoGenerateRows="False" 

  47:                   DataSourceID="SqlDataSource3">

  48:  <Fields>

  49:  <asp:BoundField DataField="App_id" HeaderText="App_id"/>

  50:  <asp:BoundField DataField="Details" HeaderText="Details"/>

  51:  </Fields>

  52:  </asp:DetailsView>

  53:   

  54:  <asp:SqlDataSource ID="SqlDataSource3" runat="server" 

  55:  ConnectionString="<%$ ConnectionStrings:ConnectionString %>"

  56:  SelectCommand="SELECT [App_id], [Details] FROM [Response] 

  57:                 WHERE ([App_id] = @ResponseID)">

  58:  <SelectParameters>

  59:  <asp:ControlParameter ControlID="GridView1" 

  60:                        Name="ResponseID" 

  61:                        PropertyName="SelectedValue"

  62:                        Type="String" />

  63:  </SelectParameters>

  64:  </asp:SqlDataSource></td>

  65:          

  66:  <td>

  67:  <asp:DetailsView ID="DetailsView3" runat="server" 

  68:                   DataKeyNames="Source_id" 

  69:                   AutoGenerateRows="False" 

  70:                   DataSourceID="SqlDataSource4">

  71:  <Fields>

  72:  <asp:BoundField DataField="Source_ID" HeaderText="Source_ID"/>

  73:  <asp:BoundField DataField="LastName" HeaderText="LastName"/>

  74:  </Fields>

  75:  </asp:DetailsView>

  76:   

  77:  <asp:SqlDataSource ID="SqlDataSource4" runat="server" 

  78:  ConnectionString="<%$ ConnectionStrings:ConnectionString %>"

  79:  SelectCommand="SELECT [Source_ID], [LastName] FROM [advt] 

  80:                 WHERE ([Source_ID] = @Source_ID)">

  81:  <SelectParameters>

  82:  <asp:ControlParameter ControlID="GridView1" 

  83:                        Name="Source_ID" 

  84:                        PropertyName="SelectedValue"

  85:                        Type="String" />

  86:  </SelectParameters>

  87:  </asp:SqlDataSource></td>

  88:  </tr></table>

  89:  </div>

  90:  </form>

Write below mentioned code in SelectedIndexChanged Event of Gridveiw.

C# CODE

protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)
    {
        string App_id = GridView1.DataKeys[GridView1.SelectedIndex]["ResponseID"].ToString();
        SqlDataSource3.SelectParameters.Clear();
        SqlDataSource3.SelectParameters.Add("ResponseID", App_id);
        DetailsView2.DataBind();

        string Source_id = GridView1.DataKeys[GridView1.SelectedIndex]["Source_id"].ToString();
        SqlDataSource4.SelectParameters.Clear();
        SqlDataSource4.SelectParameters.Add("Source_id", Source_id);
        DetailsView3.DataBind();
    }

VB.NET CODE

Protected Sub GridView1_SelectedIndexChanged(sender As Object, e As EventArgs)
 Dim App_id As String = GridView1.DataKeys(GridView1.SelectedIndex)("ResponseID").ToString()
 SqlDataSource3.SelectParameters.Clear()
 SqlDataSource3.SelectParameters.Add("ResponseID", App_id)
 DetailsView2.DataBind()

 Dim Source_id As String = GridView1.DataKeys(GridView1.SelectedIndex)("Source_id").ToString()
 SqlDataSource4.SelectParameters.Clear()
 SqlDataSource4.SelectParameters.Add("Source_id", Source_id)
 DetailsView3.DataBind()
End Sub

Build and run the code.

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