C#, jquery : how do I get the row key from gridview to display certain information in a dialog modal?

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I have this GridView:

<asp:GridView DataKeyNames="IdActivitate" ID="gvActivitati" runat="server"
                AutoGenerateColumns="false" CssClass="gvActivitati" HeaderStyle-CssClass="headerGrid" RowStyle-CssClass="rowsGrid">
<Columns>  
<pre><asp:BoundField DataField="Titlu" HeaderText="Activitate" />
                    <asp:BoundField DataField="IdActivity" HeaderText="ID" ReadOnly="true" />
                    <asp:BoundField DataField="Activity" HeaderText="Activity" />
<asp:TemplateField>
  <ItemTemplate>
    <asp:Button ID="btnpopup" CssClass="popUp" runat="server" Text="LoadBugs">         </asp:Button>
  </ItemTemplate>
</asp:TemplateField>
</Columns>

On button click it opens a dialog in which i show a table with some information from database. This is my script:

$(document).ready(function () {
    $(".popUp").click(function () {
        $("#divModal").dialog({
            dialogClass: "no-close",
            modal: true,
            title: "Bug",
            width: 450,
            height: 440,
            buttons:{
                Close: function () {
                    $(this).dialog('close');
                }
            },
            open: LoadData()
        });
        $("#bug").empty();
        return false;
    });
});
function LoadData() {
    $.ajax({
        type: "POST",
        contentType: "application/json; charset=utf-8",
        url: "Default.aspx/GetBugs",
        data: "{}",
        dataType: "json",
        success: function (data) {
            var table = $("#tblBugs");
            for (var i = 0; i < data.d.length; i++) {
                table.append("<tr><td>" + data.d[i].IdBug + "</td><td>" + data.d[i].Bug + "</td><td>" + data.d[i].IdActivity+ "</td></tr>");
            }
        },
        error: function (result) {
            alert("fail");
        }
    });
}

And i call the ajax through a WebMethod:

public class BugDetails
   {
       public string IdBug { get; set; }
       public string Bug { get; set; }
       public string IdActivity { get; set; }

   }
   [WebMethod]
   public static BugDetails[] GetBugs()
   {
       DataTable dt = new DataTable();
       List<BugDetails> bugs = new List<BugDetails>();
       using (MySqlConnection conn = new MySqlConnection(WebConfigurationManager.ConnectionStrings["myConnectionString"].ConnectionString))
       {
           using (MySqlCommand cmd = new MySqlCommand("select * from bugs" , conn)) // here in the where clause i should somehow add the Id from the row i clicked on in the gridview
           {
               conn.Open();
               MySqlDataAdapter adp = new MySqlDataAdapter(cmd);
               adp.Fill(dt);
               conn.Close();
               foreach(DataRow dtrow in dt.Rows)
               {
                   BugDetails bug = new BugDetails();
                   bug.IdBug = dtrow["IdBug"].ToString();
                   bug.Bug = dtrow["Bug"].ToString();
                   bug.Status = dtrow["IdActivity"].ToString();
                   bugs.Add(bug);
               }
           }
       }
       return bugs.ToArray();
   }

So to better explain myself i have the two tables, the Activities table who populates the grid, and the Bugs Table who populates the dialog. What i want is when i click the button to show information only for the activity in that row. Currently it shows all the information. Can you help? Thank you

What I have tried:

i tried to do it without a webmethod but it doesn't work or i don't know how to make it work otherwise :)

Posted 26-Jan-17 4:03am

Member 12869977

Updated 26-Jan-17 21:55pm

v3

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2 solutions

Solution 2

//Put an hidden field conntaining the KEY value

<ItemTemplate>
  <asp:HiddenField ID="id_name" class="hChanged" runat="server" Value='<%# Eval("IdActivity") %>' />
    <asp:Button ID="btnpopup" CssClass="popUp" runat="server" Text="LoadBugs">     </asp:Button>
</ItemTemplate>

//Access the KEY from the button click event in jQuery click event

$(this).siblings(".hChanged").val()

Posted 26-Jan-17 6:09am

sonymon mishra

Updated 26-Jan-17 17:24pm

v2

Comments

Richard Deeming 26-Jan-17 12:39pm

Except .closest only finds ancestors of the given element. The hidden input is a sibling, so it won't be found.
.closest() | jQuery API Documentation[^]

You've also forgotten to set the value of the hidden input, so it will always have the value 0.

sonymon mishra 26-Jan-17 23:25pm

Thanks for citing. I was posting on go. Tried to share the idea, the code might not be a plug and play. Good Day

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Richard Deeming · Accepted Answer · 2017-01-26T04:51:00

Add the key as a data- attribute on your button:

<asp:TemplateField>
  <ItemTemplate>
    <asp:Button ID="btnpopup" runat="server" 
        Text="LoadBugs" CssClass="popUp"
        data-activity-id='<%# Eval("IdActivity") %>' />
  </ItemTemplate>
</asp:TemplateField>

You can then retrieve the ID from your Javascript, and pass it to the server:

$(document).ready(function () {
    $(".popUp").click(function () {
        var activityId = $(this).data("activityId");
        
        $("#bug").empty();
        
        $("#divModal").dialog({
            ...
            open: LoadData(activityId)
        });
        
        return false;
    });
});

function LoadData(activityId) {
    $.ajax({
        ...
        data: JSON.stringify({ activityId: activityId }),
        ...
    });
}

And then use the ID on the server to filter the list:

[WebMethod]
public static BugDetails[] GetBugs(int activityId)
{
    using (MySqlConnection conn = new MySqlConnection(WebConfigurationManager.ConnectionStrings["myConnectionString"].ConnectionString))
    using (MySqlCommand cmd = new MySqlCommand("select * from bugs where IdActivity = @ActivityId" , conn))
    { 
        cmd.Parameters.AddWithValue("@ActivityId", activityId);
        
        DataTable dt = new DataTable();
        MySqlDataAdapter adp = new MySqlDataAdapter(cmd);
        adp.Fill(dt);
        
        List<BugDetails> bugs = new List<BugDetails>(dt.Rows.Count);
        
        foreach(DataRow dtrow in dt.Rows)
        {
            bugs.Add(new BugDetails
            {
                IdBug = dtrow["IdBug"].ToString(),
                Bug = dtrow["Bug"].ToString(),
                Status = dtrow["Status"].ToString(),
            });
        }
        
        return bugs.ToArray();
    }
}