[Sorry for my bad english]
I made a report about a job applicant profiles where the path of the applicant photo stored in the database .
I tried the following code :
private void ApplicantForm_BeforePrint(object sender, System.Drawing.Printing.PrintEventArgs e)
{
objectDataSource1.Fill();
// this.xrPictureBox1.ImageUrl = #"\\10.10.101.186\photo\" + Report.GetCurrentColumnValue("APPLICANT_PHOTO");
}
But all the photos that displayed was a picture of the first applicant.
Is there anything wrong with my code ?
You must put the code in the event BeforePrint of xrPictureBox1 :
private void xrPictureBox1_BeforePrint(object sender, System.Drawing.Printing.PrintEventArgs e)
{
xrPictureBox1.ImageUrl = #"\\10.10.101.186\photo\" + Report.GetCurrentColumnValue("APPLICANT_PHOTO");
}
Related
I have to implement autofill service for iOS in Xamarin forms, Is there any sample code ? How we can achieve it?
You can use package dotMorten.Xamarin.Forms.AutoSuggestBox from nuget .
Usage
xaml
<AutoSuggestBox PlaceholderText="Search" WidthRequest="200"
TextChanged="AutoSuggestBox_TextChanged"
QuerySubmitted="AutoSuggestBox_QuerySubmitted"
SuggestionChosen="AutoSuggestBox_SuggestionChosen"/>
Code Behind
private void AutoSuggestBox_TextChanged(AutoSuggestBox sender, AutoSuggestBoxTextChangedEventArgs args)
{
// Only get results when it was a user typing,
// otherwise assume the value got filled in by TextMemberPath
// or the handler for SuggestionChosen.
if (args.Reason == AutoSuggestionBoxTextChangeReason.UserInput)
{
//Set the ItemsSource to be your filtered dataset
//sender.ItemsSource = dataset;
}
}
private void AutoSuggestBox_SuggestionChosen(AutoSuggestBox sender, AutoSuggestBoxSuggestionChosenEventArgs args)
{
// Set sender.Text. You can use args.SelectedItem to build your text string.
}
private void AutoSuggestBox_QuerySubmitted(AutoSuggestBox sender, AutoSuggestBoxQuerySubmittedEventArgs args)
{
if (args.ChosenSuggestion != null)
{
// User selected an item from the suggestion list, take an action on it here.
}
else
{
// User hit Enter from the search box. Use args.QueryText to determine what to do.
}
}
For more details you can check https://github.com/dotMorten/XamarinFormsControls/tree/master/AutoSuggestBox
///first I have crated Popular class for storing values
public class Popular
{
public string trk_mnetid,trk_title , art_mnetid, art_name, image_url;
}
/// create popularplaylist class
public partial class PopularPlaylist : PhoneApplicationPage
{
Popular popobj = new Popular();
List<Popular> pop = new List<Popular>();
/* call json parsing it and show only "titles" in List form when i m click on perticular title i need to show details in next screen which i paser and store in popular popularplaylist class.
i use navigationservice call new screen
*/
NavigationService.Navigate(new Uri("/Popular_Module/PopularPlaylist.xaml", System.UriKind.Relative));
}
// plz tell me how to get list data in next screen
Use querystring.
Passing Value: In MainPage.xaml.cs add the following
The easiest way to pass a parameter is just to use a string, something like:
private void btnNavigate_Click(object sender, RoutedEventArgs e)
{
string url=String.Format("/Page1.xaml?parameter={0}",popular);
NavigationService.Navigate(new Uri(url, UriKind.Relative));
}
Getting Value: In Page.xaml.cs add the following
Note: It is important to override the OnNavigatedTo and after that you can use the NavigationContext to get the passed parameter.
protected override void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e)
{
base.OnNavigatedTo(e);
List<string> parameterValue = NavigationContext.QueryString["parameter"];
}
Another popular syntax to get the value of the parameter is:
List<string> parameter = string.Empty;
if (NavigationContext.QueryString.TryGetValue("parameter", out parameter))
{
//do something with the parameter
}
All of my tables have common audit fields: modifiedBy,modifiedDateTime, etc.
I would like to have these automatically set, and can set most of them with the following code:
partial class myEntities
{
partial void OnContextCreated()
{
this.SavingChanges += new EventHandler(Entities_SavingChanges);
}
private void Entities_SavingChanges(object sender, EventArgs e)
{
IEnumerable<ObjectStateEntry> objectStateEntries =
from ose
in this.ObjectStateManager.GetObjectStateEntries(EntityState.Added | EntityState.Modified)
where ose.Entity != null
select ose;
var auditDate = DateTime.Now;
var auditUser = System.Web.HttpContext.Current.User.Identity.Name;//I wish
foreach (ObjectStateEntry entry in objectStateEntries)
{
ReadOnlyCollection<FieldMetadata> fieldsMetaData = entry.CurrentValues.DataRecordInfo.FieldMetadata;
FieldMetadata modifiedField = fieldsMetaData.Where(f => f.FieldType.Name == "ModifiedBy").FirstOrDefault();
if (modifiedField.FieldType != null)
{
string fieldTypeName = modifiedField.FieldType.TypeUsage.EdmType.Name;
if (fieldTypeName == PrimitiveTypeKind.String.ToString())
{
entry.CurrentValues.SetString(modifiedField.Ordinal, auditUser);
}
}
}
}
}
The problem is that there doesn't appear to be any way to get access to the current user. The app is intranet only, using Windows auth.
Is there a way to either pass in a parameter, or get access to the HttpContext (which doesn't seem like it would be a good idea, but I'm stuck)? Is there a way to populate the EventArgs with information?
Check out the section where the poster has overridden the SaveChanges method (6th code box down on the page). This way you can pass in the UserID and perform your audit and not have to use an event handler.
I'm try to retrieve the contents of a texblock and put it in a webbrower in order to avoid html content :
desc1 is a variable recovered OnNavigatedTo method when navigating between pages
the problem is that I generate this exception:
invalid ioerationexception
plz help
thank you
var desc1 = NavigationContext.QueryString["desc"] as String;
BrowserControl.NavigateToString("<html>"+desc1+"</html>");
I tried this and it this works for me,
try and set a variable to your desc1, then go back to the xaml editor and create a loaded event handler for your page which will do the webbrowser task
string s;
public MessAbout()
{
InitializeComponent();
var desc1 = "text" as string;
s = desc1;
}
private void loaded(object sender, RoutedEventArgs e)
{
webBrowser1.NavigateToString("<html>" + s + "</html>");
}
I have a simple user control in Windows Phone 7 and I want to get access to the querystring collection from the user controls Constructor. I have tried many ways and cannot seem to get acess to the containing XAML's querystring collection.
Essentially I am navigating to the page and the my user control is going to access the querystring value to write the value back to the interface.
Am I missing adding an assembly or reference or something?
I am not sure you should be trying to get at the information from the page's constructor, as it won't necessairly get called every time you land on this page. A better approach is to override the OnNavigatedTo method inherited from PhoneApplicationPage. Looking a little more carefully at your question, you may be trying to do this within a control embedded in the page, in which case you need to get at the Page in order to obtain the navigation information.
Regardless, the NavigationContext property from the page has a QueryString parameter that you can use to access the information you're after.
The following example assumes I have a parameter named "Message" in the query string when navigating to this page:
public partial class MyPage : PhoneApplicationPage
{
// Constructor
public MyPage()
{
InitializeComponent();
}
protected override void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e)
{
base.OnNavigatedTo(e);
String navigationMessage;
if (NavigationContext.QueryString.TryGetValue("Message", out navigationMessage))
{
this.textBlock1.Text = navigationMessage;
}
}
}
Sorry about that - I started to get there, and thanks for the clarification. Your best bet then is to walk up the visual tree from your control to find the Page, then you can have at the NavigationContext. In my sample below, I have a button on a custom control within the page, whose click event finds the nav context and looks for a certain navigation parameter - I couldn't tell from the question or your follow-up what would drive the control to "want" to find the content of the query string.
(Note about getting info from the ctor follows the code below)
public partial class WindowsPhoneControl1 : UserControl
{
public WindowsPhoneControl1()
{
InitializeComponent();
}
private void button1_Click(object sender, RoutedEventArgs e)
{
GetTheQueryString();
}
private void GetTheQueryString()
{
var result = "No Joy";
var page = FindRootPage(this);
if (page != null)
{
if (page.NavigationContext.QueryString.ContainsKey("Param"))
{
result = page.NavigationContext.QueryString["Param"];
}
}
queryStringText.Text = result;
}
private static PhoneApplicationPage FindRootPage(FrameworkElement item)
{
if (item != null && !(item is PhoneApplicationPage))
{
item = FindRootPage(item.Parent as FrameworkElement);
}
return item as PhoneApplicationPage;
}
}
Note that this won't work from the ctor because of how Xaml works...the Xml tag drives the ctor to be called, then properties are set as indicated, then it is added as a child/item/etc in its container. If you do need to get at the context ASAP using this "walk up the tree" technique, handle the Control's Loaded event, by which time the control does have a parent and a tree that can be walked...
public WindowsPhoneControl1()
{
InitializeComponent();
Loaded += WindowsPhoneControl1_Loaded;
}
private void WindowsPhoneControl1_Loaded(Object sender, RoutedEventArgs e)
{
GetTheQueryString();
}
I would add a property to the UserControl subclass that would be set by the page in its OnNavigatedTo() method.