Solved

Edit GridView (ASP.NET 20 / C#)

Posted on 2006-11-29
4
71,913 Views
Last Modified: 2011-08-18
I have a gridview with one column called "Advertiser". When the "Edit" button is clicked, the litteral-control shall be replaced with an textbox control, and the "Edit button shall be replaced with "Save" and "Cancel" buttons.

The datagrid is filled correctly with data, but I dont know how to write the "Update" or "Cancel" command.
Here is my code so far:


--------------
ASPX
--------------

<asp:GridView runat="server" id="grdAdvertisers" AutoGenerateColumns="false" ShowHeader="false" OnRowEditing="grdAdvertisers_RowEditing">
    <EditRowStyle BackColor="yellow" />
    <Columns>
        <asp:TemplateField>
            <ItemTemplate>
                <asp:LinkButton CommandName="Edit" Text="Edit" Width="45px" runat="server" />
            </ItemTemplate>
            <EditItemTemplate>
                <asp:LinkButton CommandName="Update" Text="Update" Width="45px" runat="server" />
                <asp:LinkButton CommandName="Cancel" Text="Cancel" Width="45px" runat="server" />
            </EditItemTemplate>                  
        </asp:TemplateField>
        <asp:TemplateField>
             <ItemTemplate>
               <%# DataBinder.Eval(Container.DataItem,"AdvertiserName") %>
            </ItemTemplate>
            <EditItemTemplate>
                <asp:TextBox runat="server" ID="txtAdvertiser" Text='<%# DataBinder.Eval(Container.DataItem,"AdvertiserName") %>' />
            </EditItemTemplate>
        </asp:TemplateField>
    </Columns>
</asp:GridView>


------------------
ASPX.CS
------------------

    private void bindAdvertisers()
    {
        SqlConnection Conn = new SqlConnection(Variables.ConnString);
        SqlCommand cmd = new SqlCommand("usp_AdvertiserNames", Conn);
        cmd.CommandType = CommandType.StoredProcedure;
        cmd.Connection.Open();
        SqlDataReader dr = cmd.ExecuteReader();
        this.grdAdvertisers.DataSource = dr;
        this.grdAdvertisers.DataBind();
        cmd.Connection.Close();
        cmd.Dispose();
        Conn.Dispose();
    }


    protected void grdAdvertisers_RowEditing(object sender, GridViewEditEventArgs e)
    {
        //Response.Write(e.NewEditIndex);
    }
0
Comment
Question by:webressurs
  • 2
  • 2
4 Comments
 
LVL 96

Expert Comment

by:Bob Learned
ID: 18037294
In order to get the buttons that you need, you should add CommandField columns through the designer:

                    <asp:CommandField ShowDeleteButton="True" />

Bob
0
 
LVL 1

Author Comment

by:webressurs
ID: 18038820
Ok, but how do I change the button-name from "edit" to ex "edit this"...? How do I write the codebehind to actually execute a Stored Procedure with a parameter (ID)?
0
 
LVL 96

Accepted Solution

by:
Bob Learned earned 500 total points
ID: 18039304
If you need to stick to that kind of layout, then I would suggest something like this example:

      <asp:GridView ID="GridView2" runat="server" Style="z-index: 103; left: 144px; position: absolute;
        top: 212px" AutoGenerateColumns="False" OnRowCancelingEdit="GridView2_RowCancelingEdit"
        OnRowEditing="GridView2_RowEditing" OnRowUpdating="GridView2_RowUpdating">
        <Columns>
          <asp:BoundField DataField="name" HeaderText="Name" />
          <asp:BoundField DataField="number" HeaderText="Number" />
          <asp:TemplateField>
            <ItemTemplate>
              <asp:LinkButton ID="linkEdit" CommandName="Edit" Text="Edit" Width="45px" runat="server"
                OnClick="EditClick" />
            </ItemTemplate>
            <EditItemTemplate>
              <asp:LinkButton ID="linkUpdate" CommandName="Update" Text="Update" Width="45px" OnClick="UpdateClick"
                runat="server" />
              <asp:LinkButton ID="linkCancel" CommandName="Cancel" Text="Cancel" Width="45px" OnClick="CancelClick"
                runat="server" />
            </EditItemTemplate>
          </asp:TemplateField>
        </Columns>
      </asp:GridView>

    protected void EditClick(object sender, EventArgs e)
    {
        LinkButton button = (LinkButton)sender;
        GridView grid = (GridView)this.FindParent(button, typeof(GridView));

        int index = GetItemIndex(button.UniqueID);
        grid.EditIndex = index;
        grid.DataBind();
    }

    protected void UpdateClick(object sender, EventArgs e)
    {
        LinkButton button = (LinkButton)sender;
    }

    protected void CancelClick(object sender, EventArgs e)
    {
        LinkButton button = (LinkButton)sender;
    }

    private int GetItemIndex(string input)
    {
        string pattern = @"ctl(?<index>\d+)";
        Match match = Regex.Match(input, pattern);

        if (match.Success)
            return int.Parse(match.Groups["index"].Value) - 2;
        return -1;
    }

    private Control FindParent(Control ctrl, Type type)
    {
        while (ctrl.GetType() != type)
            ctrl = ctrl.Parent;

        return ctrl;
    }

    protected void GridView2_RowEditing(object sender, GridViewEditEventArgs e)
    {

    }
    protected void GridView2_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
    {
        GridView grid = (GridView)sender;
        grid.EditIndex = -1;
        grid.DataBind();
    }
    protected void GridView2_RowUpdating(object sender, GridViewUpdateEventArgs e)
    {
        // Execute update SQL.
    }

Bob
0
 
LVL 1

Author Comment

by:webressurs
ID: 18044490
Thank you :)
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

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

Today is the age of broadband.  More and more people are going this route determined to experience the web and it’s multitude of services as quickly and painlessly as possible. Coupled with the move to broadband, people are experiencing the web via …
ASP.Net to Oracle Connectivity Recently I had to develop an ASP.NET application connecting to an Oracle database.As I am doing it first time ,I had to solve several problems. This article will help to such developers  to develop an ASP.NET client…
In this video I am going to show you how to back up and restore Office 365 mailboxes using CodeTwo Backup for Office 365. Learn more about the tool used in this video here: http://www.codetwo.com/backup-for-office-365/ (http://www.codetwo.com/ba…
Hi friends,  in this video  I'll show you how new windows 10 user can learn the using of windows 10. Thank you.

912 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

Need Help in Real-Time?

Connect with top rated Experts

19 Experts available now in Live!

Get 1:1 Help Now