CODEWITHSUNDEEP
c#asp.netasp.net-ajaxupdatepanel
vml19
vml19

Reputation: 3864

Using GridView inside UpdatePanel

I have an Updatepanel and Gridview inside it. 

<asp:UpdatePanel ID="uplPanel" UpdateMode="Conditional" runat="server" OnLoad="uplPanel_Load">
<ContentTemplate>
 <asp:GridView ID="gvPrList" runat="server" AutoGenerateColumns="false" AllowPaging="false"
       AllowSorting="false" CssClass="list-table" HeaderStyle-CssClass="header">
       <Columns>
     <ItemTemplate>
               <asp:Button ID="btnEdit" runat="server" Text="Edit" CssClass="button save" OnCommand="onPrItemCmd"
                   CommandName="editRow" CommandArgument='<%#Bind("ID") %>' Style="width: 80px" />
               <asp:Button ID="btnDelete" runat="server" Text="Delete" CssClass="button save" OnCommand="onPrItemCmd"
                   CommandName="deleteRow" CommandArgument='<%#Bind("ID") %>' Style="width: 80px" />
           </ItemTemplate>
       </asp:TemplateField>
   </Columns>

When I click on my buttons inside the Griview, it does not fire the events. Any idea?

Upvotes: 10

Views: 61242

Answers (9)

esims
esims

Reputation: 420

It should work as expected, but I forgot that you don't get an error message like normal. In my case the update command was invalid, and then it seems that the update button doesn't work.

Upvotes: 0

code-it
code-it

Reputation: 119

This helped me. In my case I was changing a value in a asp:DropDownList control and then going back to the server to update my asp:GridView which is in a different asp:UpdatePanel. I just forgot to add code to refresh the Update Panel with the list. Once I did that everything worked fine.

Server side

System.Data.DataSet ds = MySQL.DAL.GetRecord(sql);
GV_View.DataSource = ds;
GV_View.DataBind();
UP_MainList.Update(); //refresh the update panel

Aspx code

            <asp:UpdatePanel runat="server" ID="UP_ListChange" UpdateMode="Conditional">
                <ContentTemplate>
                    <asp:DropDownList runat="server" ID="ddFilter" DataTextField="Desc" AutoPostBack="true" DataValueField="Detail" OnSelectedIndexChanged="GV_CodeView_RefreshScreen" ></asp:DropDownList>
                </ContentTemplate>
             </asp:UpdatePanel>
            <div class="medium">Select Filter to view database codes</div>
        </div>
        <div class="div-row-header" runat="server" id="divList">
        <asp:UpdatePanel runat="server" ID="UP_MainList" UpdateMode="Conditional">
        <ContentTemplate>
            <asp:GridView ID="GV_View" runat="server" AllowSorting="True" AutoGenerateColumns="false" DataKeyNames="id">
                <Columns>
                    <asp:BoundField DataField="Id" HeaderText="Id" Visible="false" />
                    <asp:BoundField DataField="Type_Cd" HeaderText="Code" />
                    <asp:BoundField DataField="Short_Desc" HeaderText=" Description" />
                    <asp:TemplateField HeaderText="">
                        <ItemTemplate>
                            <asp:Button ID="Code_Edit" runat="server" Text="Edit" onClick="GV_Code_Edit_Click" class="button" />
                        </ItemTemplate>
                    </asp:TemplateField>
                </Columns>             
        </ContentTemplate>

        </asp:UpdatePanel>
        </div>

Upvotes: 0

user2784648
user2784648

Reputation: 72

I had a similar issue.

Depending on your situation, as in mine...All of the clickable controls inside of the update panel I will want to be triggers; So i was simply able to use the UpdatePanel property 'ChildrenAsTriggers="true"' so solve the issue.

    <asp:UpdatePanel runat="server" ID="UPCommunicationlogForm" ChildrenAsTriggers="true" >

This solved my issue, now my edit and delete buttons that are generated from the ItemTemplate inside my gridview call their respective methods on the server.

Upvotes: 1

Filipe Leal
Filipe Leal

Reputation: 11

I added an OnRowCommand Event and add this trigger to the UpdatePanel:

<Triggers>
    <asp:AsyncPostBackTrigger ControlID="gvPrList" EventName="RowCommand" />
</Triggers>

Note that it's an Async trigger.

Upvotes: 0

John
John

Reputation: 1890

I had the same issue where column buttons with a OnClick were causing a postback but the OnClick method was not being hit. When I commented out the update panel and it all worked.

I resolved this issue by adding a postback trigger for the grid within the update panel:

</ContentTemplate>
   <Triggers>
       <asp:PostBackTrigger ControlID="uxWebDataGrid" />
   </Triggers>
</asp:UpdatePanel>

Hope this helps someone else!

Upvotes: 3

vml19
vml19

Reputation: 3864

I did the following and it works

I replace asp button with html button and call javascript method to fire Update Panal Load event.

<input id="btnDelete1" type="button" onclick="javascript:DeletePrItem('<%# Eval("ID") %>');" value="Delete" class="button save" style="width: 80px" />

My Js : 

    function DeletePrItem(_Id) {
        __doPostBack('<%= uplPanel.ClientID %>', _Id);
    }

My Code behind :

    protected void uplPanel_Load(object sender, EventArgs e)
    {
        var arg = Request.Params.Get("__EVENTARGUMENT");

        if (arg != null)
        {
            if (arg != "")
            {
                string recordId = arg.ToString();
                //Do deletetion and rebind data grid

    }
     }
}

Upvotes: 2

aleafonso
aleafonso

Reputation: 2256

This would be the Event Handler for your command in the codebehind:

protected void onPrItemCmd(object sender, CommandEventArgs e)
    {
        //do whatever you want
        //probably you will need the "ID" or "CommandArgument":
        string myArgumentID = e.CommandArgument.ToString();

        uplPanel.Update(); //since the UpdatePanel is set *UpdateMode="Conditional"*
    }

UPDATE:

Probably, you might be doing some validation when you click on buttons. If so, you need to add CausesValidation="false" in your buttons or links properties

Upvotes: 1

Ruruboy
Ruruboy

Reputation: 662

Please add this code into the UpdatePanel.

</ContentTemplate> 
 <Triggers>
   <asp:PostBackTrigger ControlID="gvPrList" EventName="Click" />
 </Triggers>
 </asp:UpdatePanel>

Upvotes: 0

Naveed Butt
Naveed Butt

Reputation: 2901

You need to add OnCommand event of GridView and then handle that inside that event like this:

OnRowCommand="gvPrList_OnRowCommand"

or alternatively add a click event for the individual button and then handle in the code behind file:

<asp:Button ID="btnEdit" runat="server" OnClick="btnEdit_Click" Text="Edit" CssClass="button save"
                   OnCommand="onPrItemCmd" CommandName="editRow" CommandArgument='<%#Bind("ID") %>' Style="width: 80px" />

Upvotes: 4

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