I am working with C# for the first time and I am facing a strange issue.
I am building my own class for a plugin, but copied parts of the code from an existing class. Basically it's
var sanInput = Console.ReadLine();
alternativeNames = sanInput.Split(',');
sanList = new List<string>(alternativeNames);
but somehow this doesn't work. The debug console says System.Console.ReadLine returned jogi,philipp string, but sanInput keeps null as its value.
Even stranger is the fact, that the next step works "a bit". string.Split returned {string[2]} string[], so it returns an array of [jogi, philipp], but still sanInput, alternativeNamesand sanList stay as null.
How is it possible, that the second line works if sanInput has no value and how can I fix this problem? When I work with the existing class with the same code everything works as expected.
//EDIT:
Looks like a quite complicated issue. Here is the complete method:
public override void HandleMenuResponse(string response, List<Target> targets)
{
if (response == "r")
{
Console.WriteLine("Which hosts do you want to configure? Enter numbers separated by a comma.");
var hostsInput = Console.ReadLine();
int[] hosts = null;
string[] alternativeNames = null;
List<string> sanList = null;
hosts = hostsInput.Split(',').Select(int.Parse).ToArray();
Console.Write("Generating certificates for ");
foreach (int entry in hosts)
{
Console.Write(targets[entry - 1].Host + ", ");
}
Console.Write("\n \n");
foreach (int entry in hosts)
{
int entry2 = entry - 1;
if (Program.Options.San)
{
Console.WriteLine("Enter all Alternative Names for " + targets[entry2].Host + " seperated by a comma:");
// Copied from http://stackoverflow.com/a/16638000
int BufferSize = 16384;
Stream inputStream = Console.OpenStandardInput(BufferSize);
Console.SetIn(new StreamReader(inputStream, Console.InputEncoding, false, BufferSize));
var sanInput = Console.ReadLine();
alternativeNames = sanInput.Split(',');
sanList = new List<string>(alternativeNames);
targets[entry2].AlternativeNames.AddRange(sanList);
}
Auto(targets[entry - 1]);
}
}
if (response == "e")
{
string[] alternativeNames = null;
List<string> sanList = new List<string>();
if (Program.Options.San)
{
Console.WriteLine("Enter all Alternative Names seperated by a comma:");
// Copied from http://stackoverflow.com/a/16638000
int BufferSize = 16384;
Stream inputStream = Console.OpenStandardInput(BufferSize);
Console.SetIn(new StreamReader(inputStream, Console.InputEncoding, false, BufferSize));
var sanInput = Console.ReadLine();
alternativeNames = sanInput.Split(',');
}
if (alternativeNames != null)
{
sanList = new List<string>(alternativeNames);
}
foreach (var entry in targets)
{
Auto(entry);
}
}
}
I know the code isn't pretty and efficient. All in all it let's the user decide if he wants to use all detected hosts (response e) or only single ones (response r). But the mentioned problem occurs only in the second if-method. If I switch them it's again the latter one. So maybe the reason lies in the main program or in this BufferSize-Stuff? I don't know.
//EDIT 2: I think I found the problem: Somehow the integer BufferSize (shortly before the Console.Read()) is set to 0, so of course without any buffer it can't read the input. So the question remains: Why?
//EDIT 3: Okay, I'm done. It looks like I can't use the same name for the variables although they are in two different if-methods. I just named them sanInput2, alternativeNames2 etc. and now everything works.
try this, all of the variables are having values(you can use var also for all the variables):
var sanInput = Console.ReadLine();
string[] alternativeNames = sanInput.Split(',');
List<string> sanList = new List<string>(alternativeNames);
The problem you mention is, that debugging code in VS do assignements in two steps. First is to execute Console.ReadLine() (therefore you see Console.Readline returned message) and AFTER that is is assigned into sanInput. Same situation is after Split. Function is called, but not assigned yet.
My recommendation: use rather the step over instead of step inside. After time, you get used to this functionality and appreciate it.
I have probem when use thread in winform.
I have error when debug program.
My Application throw exception when start program.
I define class RunInUIThread is:
private void RunInUIThread(Delegate method)
{
this.BeginInvoke(method);
}
And in RunInUIThread method like:
BaiXeBUS baixe = new BaiXeBUS();
RunInUIThread(new ThreadStart(delegate ()
{
BaiXeDTO obj = new BaiXeDTO(); //Map all to define database
txtKhuVucBai.Text = mReader.CurrentCardIDBlock1.ToString();
txtMaThe.Text = mReader.CurrentCardIDBlock2.ToString();
//If I comment all below code. It's work. But I need Insert data to database.
txtKhuVucBai.Text = obj.IDBaiXe.ToString();
txtMaThe.Text = obj.IDRF.ToString();
obj.BienSoXe = textBox1.Text;
obj.HinhBienSo = color.ToString();
obj.HinhChuXe = img.ToString();
obj.ThoiGianVao = DateTime.Now.ToLocalTime();
obj.ThoiGianRa = DateTime.Now.ToLocalTime();
baixe.BaiXe_Insert(obj); //Contain data access layer to insert data with store procedure.
}));
Why my code not work. Someone can explain me and how to fix problem?
Thank all reader!!!
What I mean is trying to run this block of code without the ThreadStart
{
BaiXeDTO obj = new BaiXeDTO(); //Map all to define database
txtKhuVucBai.Text = mReader.CurrentCardIDBlock1.ToString();
txtMaThe.Text = mReader.CurrentCardIDBlock2.ToString();
//If I comment all below code. It's work. But I need Insert data to database.
txtKhuVucBai.Text = obj.IDBaiXe.ToString();
txtMaThe.Text = obj.IDRF.ToString();
obj.BienSoXe = textBox1.Text;
obj.HinhBienSo = color.ToString();
obj.HinhChuXe = img.ToString();
obj.ThoiGianVao = DateTime.Now.ToLocalTime();
obj.ThoiGianRa = DateTime.Now.ToLocalTime();
baixe.BaiXe_Insert(obj); //Contain data access layer to insert data with store procedure.
}
This is to debug your code within the main thread.
#JoelLegaspiEnriquez, your recommned me to remove [STAThread] in Program.cs?
If I comment this line. This have problem in control AxLiveX1 is control of camera ip.
The txtKhuVucBai.Text = mReader.CurrentCardIDBlock1.ToString(); is Guid type with 16byte: 8d58d690-6b71-4ee8-85ad-006db0287bf1.
But i assign txtKhuVucBai to Guid type is:
private Guid mCurrentCardIDBlock1;
public Guid CurrentCardIDBlock1
{
get { return mCurrentCardIDBlock1; }
}
The mCurrentCardIDBlock1 is type of RFID reader with 32 character random.
I'm trying to retrieve the value of a (REG_SZ) registry key and write it to a string. However this code seems to think the key is null or doesn't exist and won't allow me to GetValue() it. Here's the code I'm using to retrieve the value.
string s64BasePath = "SOFTWARE\\Wow6432Node\\Xactware\\";
private void versionSelectorBox_SelectedIndexChanged(object sender, EventArgs e)
{
showForms();
sVersionSelected = versionServerBox.Text;
if (b64Bit == true)
{
string sRKey = s64BasePath + sVersionSelected + "\\"; //Reads as SOFTWARE\\Wow6432Node\\Xactware\\Xactimate28\\
using (RegistryKey key = Registry.LocalMachine.OpenSubKey(sRKey))
{
if (key != null)
{
//label1.Text = "Test."; //Reaches this point just fine
Object o = key.GetValue("Location");
if (o != null)
{
//label1.Text = "Test."; //Does not reach this point, o = null?
sLocationKey = Convert.ToString(o);
}
}
}
//label1.Text = sLocationKey;
}
Here is what the registry looks like. As you can see the Location key exists in the path provided. However the code isn't dropping into the inner most if statement, acting like the o object is null.
Thanks in Advance.
I will be honest, without having Xactimate installed, I do not have the same registry entry you do so I used Skype as my key.
I changed one thing, I changed it from \ to using the literal string flag.
FYI, I ran in this in LINQPad so ignore the 'dump' commands
var test = #"SOFTWARE\Wow6432Node\Skype\Phone";
var reg = Microsoft.Win32.Registry.LocalMachine.OpenSubKey(test);
reg.Dump("OpenSubKey: ");
var result = reg.GetValue("SkypeFolder");
result.Dump("GetValue: ");
Here are the results from the two dumps
After trying out several solutions, I am in desperate need for help.
I tried several approaches, before finally copying and still being stuck with the solution from Getting full contents of a Datagrid using UIAutomation.
Let's talk code, please consider the comments:
// Get Process ID for desired window handle
uint processID = 0;
GetWindowThreadProcessId(hwnd, out processID);
var desktop = AutomationElement.RootElement;
// Find AutomationElement for the App's window
var bw = AutomationElement.RootElement.FindFirst(TreeScope.Children, new PropertyCondition(AutomationElement.ProcessIdProperty, (int)processID));
// Find the DataGridView in question
var datagrid = bw.FindFirst(TreeScope.Children, new PropertyCondition(AutomationElement.AutomationIdProperty, "dgvControlProperties"));
// Find all rows from the DataGridView
var loginLines = datagrid.FindAll(TreeScope.Children, new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.DataItem));
// Badumm Tzzz: loginLines has 0 items, foreach is therefore not executed once
foreach (AutomationElement loginLine in loginLines)
{
var loginLinesDetails = loginLine.FindAll(TreeScope.Children, new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Custom));
for (var i = 0; i < loginLinesDetails.Count; i++)
{
var cacheRequest = new CacheRequest
{
AutomationElementMode = AutomationElementMode.None,
TreeFilter = Automation.RawViewCondition
};
cacheRequest.Add(AutomationElement.NameProperty);
cacheRequest.Add(AutomationElement.AutomationIdProperty);
cacheRequest.Push();
var targetText = loginLinesDetails[i].FindFirst(TreeScope.Children, new PropertyCondition(AutomationElement.ClassNameProperty, "TextBlock"));
cacheRequest.Pop();
var myString = targetText.Cached.Name;
}
}
I can neither fetch a GridPattern, nor a TablePattern instance from datagrid, both results in an exception:
GridPattern gridPattern = null;
try
{
gridPattern = datagrid.GetCurrentPattern(GridPattern.Pattern) as GridPattern;
}
catch (InvalidOperationException ex)
{
// It fails!
}
TablePattern tablePattern = null;
try
{
tablePattern = datagrid.GetCurrentPattern(TablePattern.Pattern) as TablePattern;
}
catch (InvalidOperationException ex)
{
// It fails!
}
The rows were added to the DataGridView beforehand, like this:
dgvControlProperties.Rows.Add(new object[] { false, "Some Text", "Some other text" });
I am compiling to .Net Framework 4.5. Tried both regular user rights and elevated admin rights for the UI Automation client, both yielded the same results described here.
Why does the DataGridView return 0 rows?
Why can't I get one of the patterns?
Kudos for helping me out!
Update:
James help didn't to the trick for me. The following code tough returns all rows (including the headers):
var rows = dataGrid.FindAll(TreeScope.Children, PropertyCondition.TrueCondition);
Header cells can then be identified by their ControlType of ControlType.Header.
The code that you are copying is flawed. I just tested this scenario with an adaptation of this sample program factoring in your code above, and it works.
The key difference is that the code above is using TreeScope.Children to grab the datagrid element. This option only grabs immediate children of the parent, so if your datagrid is nested it's not going to work. Change it to use TreeScope.Descendants, and it should work as expected.
var datagrid = bw.FindFirst(TreeScope.Descendants, new PropertyCondition(AutomationElement.AutomationIdProperty, "dgvControlProperties"));
Here is a link to how the various Treescope options behave. Also, I don't know how your binding the rows to the grid, but I did it like this in my test scenario and it worked flawlessly.
Hopefully this helps.
public class DataObject
{
public string FieldA { get; set; }
public string FieldB { get; set; }
public string FieldC { get; set; }
}
List<DataObject> items = new List<DataObject>();
items.Add(new DataObject() {FieldA="foobar",FieldB="foobar",FieldC="foobar"});
items.Add(new DataObject() { FieldA = "foobar", FieldB = "foobar", FieldC = "foobar" });
items.Add(new DataObject() { FieldA = "foobar", FieldB = "foobar", FieldC = "foobar" });
dg.ItemsSource = items;
Your code looks fine though this could be a focus issue.
Even though you are getting a reference to these automation element objects you should set focus on them (using the aptly named SetFocus method) before using them.
Try:
var desktop = AutomationElement.RootElement;
desktop.SetFocus();
// Find AutomationElement for the App's window
var bw = desktop.FindFirst(TreeScope.Children, new PropertyCondition(AutomationElement.ProcessIdProperty, (int)processID));
and if that does not work try explicitly focusing on the dataGrid prior to calling "FindAll" on it i.e.
datagrid.SetFocus()
Why does the DataGridView return 0 rows?
The DataGridViewRows have a ControlType of ControlType.Custom. So I modified the line
// Find all rows from the DataGridView
var loginLines = datagrid.FindAll(TreeScope.Children, new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.DataItem));
To
var loginLines = datagrid.FindAll(TreeScope.Children, new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Custom));
That gets you all the rows within the DataGridView. But your code has that within the loop.
What pattern is supported by DataGridView (not DataGrid)?
LegacyIAccessiblePattern. Try this-
LegacyIAccessiblePattern legacyPattern = null;
try
{
legacyPattern = datagrid.GetCurrentPattern(LegacyIAccessiblePattern.Pattern) as LegacyIAccessiblePattern;
}
catch (InvalidOperationException ex)
{
// It passes!
}
As I commented on #James answer, there is no support for UIA for DataGridView (again, not DataGrid).
If you search in google with terms: "UI Automation DataGridView" the first result has an incomplete answer. Mike replies with what provider class (Obviously one that extends DataGridView)to create within the source, unfortunately I have no clue as to how to make UIA load that class a provider. If anyone can shed some clues, Phil and I will be extremely pleased!
EDIT
Your DataGridView should implement the interfaces in that link above. Once you do that the ControlType of Row will be ControlType.DataItem instead of ControlType.Custom. You can then use it how you'd use a DataGrid.
EDIT
This is what I ended up doing -
Creating a Custom DataGridView like below. Your datagridview could subclass this too. That will make it support ValuePattern and SelectionItemPattern.
public class CommonDataGridView : System.Windows.Forms.DataGridView,
IRawElementProviderFragmentRoot,
IGridProvider,
ISelectionProvider
{.. }
The complete code can be found # this msdn link.
Once I did that, I played a bit with visualUIVerify source. Here is how I can access the gridview's cell and change the value. Also, make note of the commented code. I didn't need that. It allows you to iterate through rows and cells.
private void _automationElementTree_SelectedNodeChanged(object sender, EventArgs e)
{
//selected currentTestTypeRootNode has been changed so notify change to AutomationTests Control
AutomationElementTreeNode selectedNode = _automationElementTree.SelectedNode;
AutomationElement selectedElement = null;
if (selectedNode != null)
{
selectedElement = selectedNode.AutomationElement;
if (selectedElement.Current.ClassName.Equals("AutomatedDataGrid.CommonDataGridViewCell"))
{
if(selectedElement.Current.Name.Equals("Tej")) //Current Value
{
var valuePattern = selectedElement.GetCurrentPattern(ValuePattern.Pattern) as ValuePattern;
valuePattern.SetValue("Jet");
}
//Useful ways to get patterns and values
//System.Windows.Automation.SelectionItemPattern pattern = selectedElement.GetCurrentPattern(System.Windows.Automation.SelectionItemPattern.Pattern) as System.Windows.Automation.SelectionItemPattern;
//var row = pattern.Current.SelectionContainer.FindFirst(TreeScope.Children, new PropertyCondition(AutomationElement.ClassNameProperty, "AutomatedDataGrid.CommonDataGridViewRow", PropertyConditionFlags.IgnoreCase));
//var cells = row.FindAll(TreeScope.Children, new PropertyCondition(AutomationElement.ClassNameProperty, "AutomatedDataGrid.CommonDataGridViewCell", PropertyConditionFlags.IgnoreCase));
//foreach (AutomationElement cell in cells)
//{
// Console.WriteLine("**** Printing Cell Value **** " + cell.Current.Name);
// if(cell.Current.Name.Equals("Tej")) //current name
// {
// var valuePattern = cell.GetCurrentPattern(ValuePattern.Pattern) as ValuePattern;
// valuePattern.SetValue("Suraj");
// }
//}
//Select Row
//pattern.Select();
//Get All Rows
//var arrayOfRows = pattern.Current.SelectionContainer.FindAll(TreeScope.Children, new PropertyCondition(AutomationElement.ClassNameProperty, "AutomatedDataGrid.CommonDataGridViewRow", PropertyConditionFlags.IgnoreCase));
//get cells
//foreach (AutomationElement row in arrayOfRows)
//{
// var cell = row.FindFirst(TreeScope.Children, new PropertyCondition(AutomationElement.ClassNameProperty, "AutomatedDataGrid.CommonDataGridViewCell", PropertyConditionFlags.IgnoreCase));
// var gridItemPattern = cell.GetCurrentPattern(GridItemPattern.Pattern) as GridItemPattern;
// // Row number.
// Console.WriteLine("**** Printing Row Number **** " + gridItemPattern.Current.Row);
// //Cell Automation ID
// Console.WriteLine("**** Printing Cell AutomationID **** " + cell.Current.AutomationId);
// //Cell Class Name
// Console.WriteLine("**** Printing Cell ClassName **** " + cell.Current.ClassName);
// //Cell Name
// Console.WriteLine("**** Printing Cell AutomationID **** " + cell.Current.Name);
//}
}
}
_automationTests.SelectedElement = selectedElement;
_automationElementPropertyGrid.AutomationElement = selectedElement;
}
Hopefully this helps.
I run into this problem too, after researching, i figured out that you can only access data grid view with LegacyIAccessible. However, .NET does not support this. So, here are the steps:
there are 2 versions of UIA: managed version and unmanaged version (native code). In some cases, the unmanaged version can do what the managed version can't.
=> as said here, using tblimp.exe (go along with Windows SDK) to generate a COM wrapper around the unmanaged UIA API, so we can call from C#.
I have done it here
we can use this to access DataGridView now but with very limited data, you can use Inspect.exe to see.
The code is:
using InteropUIA = interop.UIAutomationCore;
if (senderElement.Current.ControlType.Equals(ControlType.Custom))
{
var automation = new InteropUIA.CUIAutomation();
var element = automation.GetFocusedElement();
var pattern = (InteropUIA.IUIAutomationLegacyIAccessiblePattern)element.GetCurrentPattern(10018);
Logger.Info(string.Format("{0}: {1} - Selected", pattern.CurrentName, pattern.CurrentValue));
}
i want to display value of sharepoint people/group value in people editor(web part) when the page is loaded. This is the code that i use to get the value displayed in web part
if(SPContext .Current .ListItem .ID >= 1)
using (SPSite site = new SPSite("sitename"))
{
using (SPWeb web = site.OpenWeb())
{
var id = SPContext.Current.ListItem.ID;
SPList lists = web.Lists["DDClist"];
SPListItem item = lists.GetItemById(id);
{
string test = Convert.ToString(item["Project No"]);
tb_pno.Text = test;
string test2 = Convert.ToString(item["Project Title"]);
tb_pname.Text = test2;
string test3 = Convert.ToString(item["DDC No"]);
tb_idcno.Text = test3;
string test4 = Convert.ToString(item["Date In"]);
TextBox3.Text = test4;
}
}
}
is there a way to do the same thing with people editor?
This is all a little tricky; when I've had to do it before, I use the following to get SPUser object out of a field:
SPUser singleUser = new SPFieldUserValue(
item.Web, item["Single User"] as string).User;
SPUser[] multipleUsers = ((SPFieldUserValueCollection)item["MultipleUsers"])
.Cast<SPFieldUserValue>().Select(f => f.User);
I'm not sure why one user is stored as a string, but multiple users are stored as a specific object; it may also not be consistent in this so you might have to debug a bit and see what the type in your field is.
Once you have these SPUsers, you can populate your PeopleEditor control
using the account names as follows (quite long-winded):
ArrayList entityArrayList = new ArrayList();
foreach(SPUser user in multipleUsers) // or just once for a single user
{
PickerEntity entity = new PickerEntity;
entity.Key = user.LoginName;
entity = peMyPeople.ValidateEntity(entity);
entityArrayList.Add(entity);
}
peMyPeople.UpdateEntities(entityArrayList);
This also performs validation of the users of some kind.
If the page this control appears on may be posted-back, you need the following to be done during the postback in order for the values to be correctly roundtripped; I put it in PreRender but it could happen elsewhere in the lifecycle:
protected override void OnPreRender(EventArgs e)
{
if (IsPostBack)
{
var csa = peMyPeople.CommaSeparatedAccounts;
csa = peMyPeople.CommaSeparatedAccounts;
}
}
If you want to check any error messages that the control generates for you (if the user input is incorrect), you need to have done this switchout already:
var csa = usrBankSponsor.CommaSeparatedAccounts;
csa = usrOtherBankParties.CommaSeparatedAccounts;
//ErrorMessage is incorrect if you haven't done the above
if (!String.IsNullOrEmpty(usrBankSponsor.ErrorMessage))
{
...
}
It's really not very nice and there may be a much better way of handling it, but this is the result of my experience so far so hopefully it will save you some time.