nav[aria-label="Primary Navigation"] { padding: 0; & ul { list-style: none; width: 100%; display: flex; flex-direction: row; justify-content: start; align-items: start; gap: 30px; padding: 0; & li { margin: 0; } & ul li { list-style: none; } } }

Creating a hyperlink result from query function.

JaredWhite

Hi,
I'm needing to write a function where my app not only brings up query results, but also pulls a hyperlink from my map (the data tables on my map service have web addresses under the Path "path"). I used the identify query function (http://help.arcgis.com/en/webapi/silverlight/samples/start.htm#Identify) from the api samples. How would I set it up so that the hyperlink also recieves the info from the map.

Xaml would be something like this

    <Grid>
    <TextBlock Text="Query Results" />
    <Grid x:Name="IdentifyResultsPanel"
        <ComboBox x:Name="IdentifyComboBox" SelectionChanged="cb_SelectionChanged" />
        <HyperlinkButton x:Name="HyperlinkButton" />
        <ScrollViewer VerticalScrollBarVisibility="Auto" >
            <slData:DataGrid x:Name="IdentifyDetailsDataGrid" >
                <slData:DataGrid.Columns>
                    <slData:DataGridTextColumn Binding="{Binding Path=Key}" />
                    <slData:DataGridTextColumn Binding="{Binding Path=Value}"/>
                </slData:DataGrid.Columns>
            </slData:DataGrid>
        </ScrollViewer>
    </Grid>

Code Behind

        #region Query Results

        private void QueryPoint_MouseClick(object sender, ESRI.ArcGIS.Client.Map.MouseEventArgs e)
        {
            ESRI.ArcGIS.Client.Geometry.MapPoint clickPoint = e.MapPoint;
            ESRI.ArcGIS.Client.Tasks.IdentifyParameters identifyParams = new IdentifyParameters()
            {
                Geometry = clickPoint,
                MapExtent = TabletMap.Extent,
                Width = (int)TabletMap.ActualWidth,
                Height = (int)TabletMap.ActualHeight,
                LayerOption = LayerOption.visible,
                SpatialReference = TabletMap.SpatialReference
            };
            IdentifyTask identifyTask = new IdentifyTask("http://XXXXXXXXXXXXXXXXXXX");
            identifyTask.ExecuteCompleted += IdentifyTask_ExecuteCompleted;
            identifyTask.Failed += IdentifyTask_Failed;
            identifyTask.ExecuteAsync(identifyParams);
            GraphicsLayer graphicsLayer = TabletMap.Layers["MyGraphicsLayer"] as GraphicsLayer;
            graphicsLayer.ClearGraphics();
            ESRI.ArcGIS.Client.Graphic graphic = new ESRI.ArcGIS.Client.Graphic()
            {
                Geometry = clickPoint,
                Symbol = LayoutRoot.Resources["DefaultPictureSymbol"] as ESRI.ArcGIS.Client.Symbols.Symbol
            };
            graphicsLayer.Graphics.Add(graphic);
        }
        public void ShowFeatures(List<IdentifyResult> results)
        {
            _dataItems = new List<DataItem>();

            if (results != null && results.Count > 0)
            {
                IdentifyComboBox.Items.Clear();
                foreach (IdentifyResult result in results)
                {
                    Graphic feature = result.Feature;
                    string title = result.Value.ToString() + " (" + result.LayerName + ")";
                    _dataItems.Add(new DataItem()
                    {
                        Title = title,
                        Data = feature.Attributes
                    });
                    IdentifyComboBox.Items.Add(title);
                }
                IdentifyComboBox.SelectedIndex = 0;
            }
            QueryPanel.IsExpanded = true;
        }
        void cb_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            int index = IdentifyComboBox.SelectedIndex;
            if (index > -1)
                IdentifyDetailsDataGrid.ItemsSource = _dataItems[index].Data;
        }
        private void IdentifyTask_ExecuteCompleted(object sender, IdentifyEventArgs args)
        {
            IdentifyDetailsDataGrid.ItemsSource = null;

            if (args.IdentifyResults != null && args.IdentifyResults.Count > 0)
            {
                IdentifyResultsPanel.Visibility = Visibility.Visible;

                ShowFeatures(args.IdentifyResults);
            }
            else
            {
                IdentifyComboBox.Items.Clear();
                IdentifyComboBox.UpdateLayout();

                IdentifyResultsPanel.Visibility = Visibility.Collapsed;
            }
        }
        public class DataItem
        {
            public string Title { get; set; }
            public IDictionary<string, object> Data { get; set; }
        }
        void IdentifyTask_Failed(object sender, TaskFailedEventArgs e)
        {
            MessageBox.Show("Identify failed. Error: " + e.Error);
        }

        #endregion

Any help would be great, thanks.

Finde mehr Beiträge mit dem Tag

Accepted answers

All comments

TanyaOwens

Thanks! That brought the fields back into the datagrid. Have you had any luck with getting a hyperlink to work for three separate data grids. Its seems like it should be a simple task but I just can't seem to work it out. See my original post for more info. http://forums.arcgis.com/threads/58727-Field-Hyperlink

JaredWhite

I got it to work but it oddly took out my field that contained the website from the datagrid. Really I was just looking for other hyperlink methods to try to resolve my issue from my post http://forums.arcgis.com/threads/58727-Field-Hyperlink. If you could provide some assistance on my field hyperlink post I would greatly appreciate it. Right now I am just lost on what to do to get my identify layer selection in three datagrids to each have a hyperlink.

Thanks for your help.

I wrote it that way. Just change it to this

  public string URLlink { get; set; }
        private void IdentifyDetailsDataGrid_LoadingRow(object sender, DataGridRowEventArgs e)
        {                    
            try
            {
                string s = e.Row.DataContext.ToString();
                if (s.Contains("http"))
                {
                    string[] sSplit = s.Split(',');
                    string[] link = sSplit[1].Split(']');
                    URLlink = link[0];                    
                }
                else
                {
                }
            }
            catch
            {
            }
        }
        
        private void DTSButton_Click(object sender, RoutedEventArgs e)
        {
            HtmlPage.Window.Navigate(new Uri(URLlink), "_blank");           
        }

TanyaOwens

I think you just need to add reference to this .NET Assembly "System.Windows.Browser" and resolve reference to add using statement for this namespace http://msdn.microsoft.com/en-us/library/system.windows.browser.htmlpage%28v=vs.95%29.aspx

I got it to work but it oddly took out my field that contained the website from the datagrid. Really I was just looking for other hyperlink methods to try to resolve my issue from my post http://forums.arcgis.com/threads/58727-Field-Hyperlink. If you could provide some assistance on my field hyperlink post I would greatly appreciate it. Right now I am just lost on what to do to get my identify layer selection in three datagrids to each have a hyperlink.

Thanks for your help.

JenniferNery

I think you just need to add reference to this .NET Assembly "System.Windows.Browser" and resolve reference to add using statement for this namespace http://msdn.microsoft.com/en-us/library/system.windows.browser.htmlpage%28v=vs.95%29.aspx

TanyaOwens

I get an error "The name 'HtmlPage' does not exist in the current context". What am I missing?

JaredWhite

Solved. You create a loading row that filters out everything but strings that contain "http", then pipe that value too your button containing a new page command. Thanks for the guidance.

        public string URLlink { get; set; }
        private void IdentifyDetailsDataGrid_LoadingRow(object sender, DataGridRowEventArgs e)
        {
            string value = e.Row.DataContext.ToString();
            if (value.Contains("http"))
            {
                //Hides URLLink data line from Datagrid Results
                SolidColorBrush brush = new SolidColorBrush(Colors.Transparent);
                e.Row.Foreground = brush;                
            }
            else
            {
            }            
            try
            {
                string s = e.Row.DataContext.ToString();
                if (s.Contains("http"))
                {
                    string[] sSplit = s.Split(',');
                    string[] link = sSplit[1].Split(']');
                    URLlink = link[0];                    
                }
                else
                {
                }
            }
            catch
            {
            }
        }
        
        private void DTSButton_Click(object sender, RoutedEventArgs e)
        {
            HtmlPage.Window.Navigate(new Uri(URLlink), "_blank");           
        }

                            <Button x:Name="DTSButton" Click="DTSButton_Click"/>
 <slData:DataGrid x:Name="IdentifyDetailsDataGrid" AutoGenerateColumns="False" HeadersVisibility="None" 
                              Background="White" LoadingRow="IdentifyDetailsDataGrid_LoadingRow">
                                    <slData:DataGrid.Columns>
                                        <slData:DataGridTextColumn Binding="{Binding Key}" FontWeight="Bold"/>
                                        <slData:DataGridTextColumn Binding="{Binding Value}" />
                                    </slData:DataGrid.Columns>
                                </slData:DataGrid>

JaredWhite

Thank you very much, this gives me some badly needed base functionality till I can figure out how to do this properly. I'd still like to use a dedicated hyperlink button though. If you don't have time, tend to people with more pressing problems, but if you don't mind, how would i go about populating a hyperlink button with a particular field of data pulled from an identify query like what i have written?
Thanks in advance.

DominiqueBroux

Did you check this thread : http://forums.arcgis.com/threads/22728-Identify-Tool-multiple-layers-Hyperlinks ? Might help.

Nimm an der Unterhaltung teil

Angemeldete Mitglieder können Beiträge verfassen, Updates folgen und mehr. Neu hier? Registriere ein kostenloses Konto.

Schnellzugriffe

Community Help
Find useful guides, FAQs, and documents to help you navigate and make the most of Esri Community.