datagrid doubleclick

Manu xaml

17y16.5k

I have this grid and on doubleclick I'd like to capture the CorrectionID, values to pass on to a new window. Can anyone guide me>

   private void dgCorrectionHistory_MouseDoubleClick(object sender, MouseButtonEventArgs e)
        {
            MessageBox.Show("You have just selected " + DataGridTextColumn.HeaderStringFormatProperty.ToString() + row);
        }

                      SelectionMode="Single" GridLinesVisibility="None" HeadersVisibility="Column"
RowDetailsVisibilityMode="VisibleWhenSelected" SelectedIndex="0" Grid.IsSharedSizeScope="False" HorizontalAlignment="Stretch" IsTabStop="True" TabIndex="1"
CanUserAddRows="False" CanUserResizeColumns="False" CanUserResizeRows="False" IsTextSearchEnabled="True"
Loaded="dgCorrectionHistory_Loaded" EnableRowVirtualization="False" Focusable="False" PreviewKeyDown="dgCorrectionHistory_PreviewKeyDown" PreparingCellForEdit="dgCorrectionHistory_PreparingCellForEdit"
CellEditEnding="dgCorrectionHistory_CellEditEnding" BeginningEdit="dgCorrectionHistory_BeginningEdit" MouseDown="dgCorrectionHistory_MouseDown" LostFocus="dgCorrectionHistory_LostFocus" MouseLeave="dgCorrectionHistory_MouseLeave"
MouseDoubleClick="dgCorrectionHistory_MouseDoubleClick" PreviewMouseDown="dgCorrectionHistory_PreviewMouseDown">

2 Replies

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Suchit Khanna17y ago
I think you forgot his question was regarding WPF datagrid not ASP and we are in WPF section, never mind :-).
Manu, do you want to get the row click event in your datagrid??

Just add MouseDoubleClick Event to your DataGrid and the following code to the event:

{
DependencyObject source = (DependencyObject)e.OriginalSource;

            var row = UIHelper.TryFindParent(source);

            if (row == null)    //Checking if the double click happened froma row or not
                return;
           else
           // you could access row variable as:
           row.Item --> give you the selected row
          e.Handled = true;
}

// Add this Class to your project
    public static class UIHelper
    {
        ///

        /// Finds a parent of a given item on the visual tree.
        ///

        /// The type of the queried item.
        /// A direct or indirect child of the
        /// queried item.
        /// The first parent item that matches the submitted
        /// type parameter. If not matching item can be found, a null
        /// reference is being returned.
        public static T TryFindParent(DependencyObject child)
          where T : DependencyObject
        {
            //get parent item
            DependencyObject parentObject = GetParentObject(child);

            //we've reached the end of the tree
            if (parentObject == null) return null;

            //check if the parent matches the type we're looking for
            T parent = parentObject as T;
            if (parent != null)
            {
                return parent;
            }
            else
            {
                //use recursion to proceed with next level
                return TryFindParent(parentObject);
            }
        }

        ///

        /// This method is an alternative to WPF's
        /// method, which also
        /// supports content elements. Do note, that for content element,
        /// this method falls back to the logical tree of the element!
        ///

        /// The item to be processed.
        /// The submitted item's parent, if available. Otherwise
        /// null.
        public static DependencyObject GetParentObject(DependencyObject child)
        {
            if (child == null) return null;
            ContentElement contentElement = child as ContentElement;

            if (contentElement != null)
            {
                DependencyObject parent = ContentOperations.GetParent(contentElement);
                if (parent != null) return parent;

                FrameworkContentElement fce = contentElement as FrameworkContentElement;
                return fce != null ? fce.Parent : null;
            }

            //if it's not a ContentElement, rely on VisualTreeHelper
            return VisualTreeHelper.GetParent(child);
        }

    }
Niradhip Chakraborty17y ago

My Datagrid html code:

<asp:DataGrid ID="dgViewMyReservation" Width="580px" AutoGenerateColumns="False"

                                                                                            BorderStyle="none" OnItemDataBound="dgViewMyReservation_ItemDataBound" DataKeyField="ReservationId"

                                                                                            BorderColor="gray" runat="server" ShowHeader="false" AlternatingItemStyle-BorderWidth="0">

                                                                                            <ItemStyle CssClass="DetailsGrid">ItemStyle>

                                                                                            <Columns>

                                                                                                <asp:BoundColumn DataField="ReservationId">

                                                                                                    <ItemStyle Width="150px" CssClass="text3">ItemStyle>

                                                                                                asp:BoundColumn>

                                                                                                <asp:BoundColumn DataField="EventName">

                                                                                                    <ItemStyle Width="270px" CssClass="text3">ItemStyle>

                                                                                                asp:BoundColumn>

                                                                                                <asp:BoundColumn DataField="Type">

                                                                                                    <ItemStyle Width="120px" CssClass="text3">ItemStyle>

                                                                                                asp:BoundColumn>

                                                                                                <asp:BoundColumn DataField="Status">

                                                                                                    <ItemStyle Width="110px" CssClass="text3">ItemStyle>

                                                                                                asp:BoundColumn>

                                                                                            Columns>

                                                                                        asp:DataGrid>

My Item bound code in page behind is as follows:

public void dgViewMyReservation_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)

    {

        if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)

        {

            string strMemberId = e.Item.Cells[0].Text;

            string strMarketName = e.Item.Cells[2].Text;

            string strStatus = e.Item.Cells[3].Text;

            e.Item.Attributes.Add("onmouseover", "OnMenuMouseOver(this)");

            e.Item.Attributes.Add("ondblclick", "javascript:return SelectRowOndblClick('" + strMemberId + "','" + strMarketName + "','" + strStatus + "', this);");

        }

    }

My java script function is as follows:

function SelectRowOndblClick(MemberId, ObjRow)

{

      document.frmMyReservation.hdID.value = "";

document.frmMyReservation.hdID.value = MemberId;

location.href = "EditReservation.aspx?Id=" + document.getElementById("hdID").value + "&Status=" + document.getElementById("hdStatus").value + "&Type=" + document.getElementById("hdType").value + "";

}