Solved

How to update a dataset row when user update a template field in  gridview

Posted on 2007-11-22
6
359 Views
Last Modified: 2012-06-21
Hello Experts,

I have a gridview with template fields(Dropdown) which is bound to a column in dataset. ... on a button click the record get added to a gridview... once the record is displayed in the gridview the user should be able to change the Method : to either Rnd or Pror.

How do I update my dataset based on user changes.

please guide.

I add the code... the first shows the gridview and its column

and the other one is click event of abutton that adds row to the dataset and then displayed in the gridview.


<asp:Panel ID="Panel1" runat="server" Height="136px" ScrollBars="Vertical" Style="z-index: 118;
                        left: 440px; position: absolute; top: 96px" Width="472px" BorderColor="Blue" BorderWidth="1px">
                        <asp:GridView ID="GridView1" runat="server"
                            Font-Names="Arial" Font-Size="7pt" Style="z-index: 100; left: 0px; position: absolute;
                            top: 0px" Width="456px" ShowHeader="False" AutoGenerateColumns="False" >
                                  <Columns>
                                  <asp:TemplateField>
                                    <ItemTemplate>
                                     &nbsp;<asp:Button ID="btnRowButton1" runat="server"   CommandName="Exclude" Text="x" Width="12px" Font-Names="Arial" Font-Size="7pt" Height="16px" style="text-align: center" />
                                        
                                    </ItemTemplate>
                                </asp:TemplateField>
                
                <asp:BoundField DataField="SrNo" SortExpression="Rank" ControlStyle-BorderWidth ="6px" >
                    <ControlStyle BorderWidth="6px" />
                </asp:BoundField>
                <asp:BoundField DataField="FSName" SortExpression="Rank" ControlStyle-BorderWidth ="20px">
                    <ControlStyle BorderWidth="20px" />
                </asp:BoundField>
                <asp:BoundField DataField="EffDt" SortExpression="Rank" ControlStyle-BorderWidth ="10px">
                    <ControlStyle BorderWidth="10px" />
                </asp:BoundField>
                <asp:TemplateField>
               <ItemTemplate>
               <asp:TextBox ID="txtPOC" runat="server" text='<%#DataBinder.Eval(Container.DataItem, "POC") %>'
Font-Names="Arial" Font-Size="7pt" Width="32px"></asp:TextBox>
               </ItemTemplate>
               </asp:TemplateField>
                                      <asp:TemplateField>
                                          <ItemTemplate>
                                              <asp:DropDownList ID="ddnPOS24" runat="server" SelectedValue='<%#DataBinder.Eval(Container.DataItem, "POS24") %>' Font-Names="Arial" Font-Size="7pt"
                                                  Width="48px">
                                                  <asp:ListItem Selected="True">Fac</asp:ListItem>
                                                  <asp:ListItem>NonFac</asp:ListItem>
                                              </asp:DropDownList>
                                          </ItemTemplate>
                                      </asp:TemplateField>
                                      <asp:TemplateField>
                                          <ItemTemplate>
                                              <asp:TextBox ID="txtAnesCF" runat="server" text='<%#DataBinder.Eval(Container.DataItem, "AnesCF") %>' Font-Names="Arial" Font-Size="7pt" Width="24px"></asp:TextBox>
                                          </ItemTemplate>
                                      </asp:TemplateField>
               <asp:TemplateField>
               <ItemTemplate>
               <asp:DropDownList ID="ddnAMethod" runat="server"  SelectedValue='<%#DataBinder.Eval(Container.DataItem, "AnesMethod") %>' Font-Names="Arial" Font-Size="7pt"
                Width="48px">
                <asp:ListItem Selected="True">Rnd</asp:ListItem>
               <asp:ListItem>Pror</asp:ListItem>
                   <asp:ListItem></asp:ListItem>
               </asp:DropDownList>
               </ItemTemplate>
                </asp:TemplateField>
                
            </Columns>
                        </asp:GridView>
                    </asp:Panel>
 
 
 
 
 
 
Protected Sub btnAdd1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnAdd1.Click
        Dim dr As Data.DataRow
 
        i = i + 1
        dr = ds.Tables(0).NewRow
        dr("srno") = i
 
        If lstFS.SelectedValue <> "" Then
            Call FS_Detail(lstFS.SelectedValue)
            dr("FSName") = lstFS.SelectedValue
            dr("Type") = "NonOption"
            dr("effDT") = txtDate.Text
            dr("POC") = Session("POC")
            dr("POS24") = Session("POS24")
            dr("AnesCF") = Session("ACF")
            dr("AnesMethod") = "Pror"
        Else
            Call FS_Detail(getMKTID(lstMyFS.SelectedValue))
            dr("FSName") = lstMyFS.SelectedValue
            dr("Type") = "NonOption"
            dr("effDT") = txtDate.Text
            dr("POC") = Session("POC")
            dr("POS24") = Session("POS24")
            dr("AnesCF") = Session("ACF")
            dr("AnesMethod") = "Rnd"
        End If
 
        ds.Tables(0).Rows.Add(dr)
        dv = New DataView(ds.Tables(0))
        dv.RowFilter = "Type='NonOption'"
        Me.GridView1.DataSource = dv
        Me.GridView1.DataBind()
 
        For i = 0 To (lstFS.Items.Count - 1)
            lstFS.Items(i).Selected = False
        Next
        For i = 0 To (lstMyFS.Items.Count - 1)
            lstMyFS.Items(i).Selected = False
        Next
 
    End Sub

Open in new window

0
Comment
Question by:sanjaypandey
  • 4
  • 2
6 Comments
 
LVL 12

Expert Comment

by:Mortaza Doulaty
ID: 20343188
Change "Eval" in your code to Bind

For example for a text box you will have:
<asp:TextBox ID="txtPOC" runat="server" text='<%#DataBinder.Bind(Container.DataItem, "POC") %>'
Font-Names="Arial" Font-Size="7pt" Width="32px"></asp:TextBox>

Open in new window

0
 

Author Comment

by:sanjaypandey
ID: 20343860
Hello,

I get a error saying that bind is not a member of 'System.web.UI.DataBinder', Am I missing something?

0
 
LVL 12

Expert Comment

by:Mortaza Doulaty
ID: 20343943
This sample code may help:
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="BlackListID"
            DataSourceID="AccessDataSource1">
            <Columns>
                <asp:BoundField DataField="BlackListID" HeaderText="BlackListID" InsertVisible="False"
                    ReadOnly="True" SortExpression="BlackListID" />
                <asp:BoundField DataField="Tel_vc" HeaderText="Tel_vc" SortExpression="Tel_vc" />
                <asp:BoundField DataField="Comments_vc" HeaderText="Comments_vc" SortExpression="Comments_vc" />
                <asp:TemplateField HeaderText="mrt">
                    <ItemTemplate>
                        <asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("Tel_vc") %>'></asp:TextBox>
                    </ItemTemplate>
                </asp:TemplateField>
            </Columns>
        </asp:GridView>

Open in new window

0
PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

 
LVL 12

Expert Comment

by:Mortaza Doulaty
ID: 20343954
Note that the last column is a template column that have a text box that binded to a filed using:
Text='<%# Bind("Tel_vc") %>'
0
 

Author Comment

by:sanjaypandey
ID: 20344063
will this automatically update the DataSet... ?  It does help in that on autopostback , the dropdown retains the value that it was changed to ... but when I submit the dataset to a table ..it shows the original value and not the one to which it was changed to..

    <asp:TemplateField>
                                          <ItemTemplate>
                                              <asp:DropDownList ID="ddnPOS24" runat="server" SelectedValue='<%#Bind("POS24") %>' Font-Names="Arial" Font-Size="7pt"
                                                  Width="40px"  AutoPostBack="True">
                                                  <asp:ListItem Selected="True">Fac</asp:ListItem>
                                                  <asp:ListItem>NonFac</asp:ListItem>
                                              </asp:DropDownList>
                                          </ItemTemplate>
                                      </asp:TemplateField>




This is how I read the dataset:


 For i = 97 To ds.Tables(0).Rows.Count - 1
            varstrSQL = varstrSQL + " Insert into " & varSelectedFSTblName & "(Fsname,Eff_DT, DEFPOC,POS, AnesCF,AnesMethod,SelectionType,ModelType)"
            varstrSQL = varstrSQL + "values( '" & ds.Tables(0).Rows(i).Item(2) & "','" & ds.Tables(0).Rows(i).Item(3) & "','" & ds.Tables(0).Rows(i).Item(4) & "','" & ds.Tables(0).Rows(i).Item(5) & "',"
            varstrSQL = varstrSQL + "'" & ds.Tables(0).Rows(i).Item(6) & "','" & ds.Tables(0).Rows(i).Item(7) & "','" & ds.Tables(0).Rows(i).Item(9) & "','" & ds.Tables(0).Rows(i).Item(8) & "')"
            cm.CommandText = varstrSQL
            cm.CommandType = CommandType.Text
            cm.ExecuteNonQuery()
            varstrSQL = ""
        Next
0
 
LVL 12

Accepted Solution

by:
Mortaza Doulaty earned 500 total points
ID: 20344950
You should set the update query of your datasource to that your changes in dataset take effect in database.
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Lots of people ask this question on how to extend the “MembershipProvider” to make use of custom authentication like using existing database or make use of some other way of authentication. Many blogs show you how to extend the membership provider c…
IntroductionWhile developing web applications, a single page might contain many regions and each region might contain many number of controls with the capability to perform  postback. Many times you might need to perform some action on an ASP.NET po…
Microsoft Active Directory, the widely used IT infrastructure, is known for its high risk of credential theft. The best way to test your Active Directory’s vulnerabilities to pass-the-ticket, pass-the-hash, privilege escalation, and malware attacks …

821 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question