I am trying to use a dispatch timer, but my c# app can't find the namespace. This is the error:
The type or namespace name 'DispatcherTimer' could not be found (are you missing a using directive or an assembly reference?)
Here is what I am using:
using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using System.Globalization;
using System.Text;
using System.Threading;
using System.Timers;
using System.Windows.Forms;
Here is the code:
DispatcherTimer timer1 = new DispatcherTimer();
DispatcherTimer is not a namespace - it's a class within the System.Windows.Threading namespace and the WindowsBase assembly. So you need
using System.Windows.Threading;
In general, a search for the missing type name and "MSDN" is enough to find out where to find a type.
The Dispatcher class is in WindowsBase.dll. You MUST add that reference to your project to use "using System.Windows.Threading;" <>
Add this using:
using System.Windows.Threading;
MSDN
Isn't in the System.Windows.Threading namespace and not the System.Threading namespace?
http://msdn.microsoft.com/en-us/library/system.windows.threading.dispatchertimer.aspx
You must Add WindowsBase in your references so you can use the System.Windows.Threading.
Related
I have a strange error and don't know how to solve that. I have a Form which gets opened by another (Main)Form. When I write
List<String> valStoreAsString = new List<String>();
I get "The value or namespace List could not get found". My using directives are the following:
using System;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Data.SqlClient;
using System.Collections;
using System.Runtime.InteropServices;
In the other Forms it works fine. What happened here?
Add following using directive to the list of usings.
using System.Collections.Generic;
Tip
If you are using Visual Studio and if you don't know the namespace then type name of type (Case sensetive) in editor and then press ctrl+ . and select add using option and VS will add related using for you.
or you can right click on name of Type and select Resolve option and select using .... sub option.
I am trying to write
var cacheRequest = new CacheRequest
{
AutomationElementMode = AutomationElementMode.None,
TreeFilter = Automation.RawViewCondition//reference
};
I am getting an error ,
the type or namespace name 'RawViewCondition' does not exist in the namespace 'System.Windows.Automation' (are you missing an assembly reference?)
I am using this namespaces
using System;
using System.Windows;
using System.Threading;
using Automation = System.Windows.Automation;
using System.Windows.Automation;
using System.Windows.Threading;
I am new to UI Automation.
There would be great appreciation if someone could help me.
Got my answer we must use System.Windows.Automation.Automation.RawViewCondition. Thanks any way to all.
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Diagnostics;
using ProcessMemoryReaderLib;
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
This seems to always return the error
"Error 1 The type or namespace name 'ProcessMemoryReaderLib' could not be found (are you missing a using directive or an assembly reference?) C:\Users\giacomo\documents\visual studio 2010\Projects\WindowsFormsApplication1\WindowsFormsApplication1\Form1.cs 10 7 WindowsFormsApplication1
"
In your Solution Explorer, right click your References > Add Reference then click Browse, then find and select your .dll File and add it to your references. You can't include a library in your project with using if you don't include your assembly.
Take a look at here for more details: http://msdn.microsoft.com/en-us/library/wkze6zky.aspx
Just build the project after adding the reference of the ProcessMemoryReaderLib.dll in your project,then use using ProcessMemoryReaderLib; in your class file
I have a problem with RenderMode-property of the ToolStripSeparator.
When I put the following line of code :
this.toolStripSeparator1.RenderMode = ToolStripRenderMode.System;
I have the following error :
error 44 'System.Windows.Forms.ToolStripSeparator' does not contain a
definition for 'RenderMode' and no extension method 'RenderMode'
accepting a first argument of type
'System.Windows.Forms.ToolStripSeparator' could be found (are you
missing a using directive or an assembly reference?)
Despite, I put the references
using System.Windows.Forms;
Below is a list of my references
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Threading;
using System.Diagnostics;
Do you have any ideas what could cause this error?
ToolStripRenderMode Enumeration's value can be assigned to RenderMode property of ToolStrip.
ToolStripSeparator donot have any such property.
I think you should use it like this:
toolStrip1.RenderMode=ToolStripRenderMode.System;
I'm trying to add a reference to a project ("Geometry") that lives in another solution ("Bar Solution") into another solution ("Foo Solution"). Any project in Bar Solution (the home of the Geometry's source code) can import Geometry and use its features with no problem; however, when I add the DLL to Foo Solution, it imports fine, but the Object Browser shows it containing no namespaces or classes.
Has anyone experienced this problem or otherwise know of a solution? I can't find any information on SO or more generally, le Goog.
Object Browser of Foo Solution:
Bar's Solution Explorer:
Some code from Foo which is trying to use "Geometry":
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using Geometry; // Error: "The type or namespace name 'Geometry' could not be found
// (are you missing a using directive or an assembly reference?)"
namespace Lever
{
public partial class LeverGUI : Form
{
public LeverGUI()
{
InitializeComponent();
}
}
}