小编Sea*_*n P的帖子

我有一个属性网格,当单击其中一个属性的按钮时,某些字段将被填充.但是属性的集合未被触发.我不知道为什么.

 private OptoSigmaSettings dataToGet = new OptoSigmaSettings();

 [Editor(typeof(OptoSetupFormEditor), typeof(UITypeEditor))]
 [TypeConverter(typeof(ExpandableObjectConverter))]
 [Category("Setup")]
 public OptoSigmaSettings DataToGet
    {
        get { return dataToGet; }
        set
        {
            MessageBox.Show("Im here"); //This isnt happening.
            dataToGet = value; }
    }

 [Serializable]
public class OptoSigmaSettings
{
    private int duration = 0;
    private string direction = "Positive";
    private string functionToCall = "Home";

    public string FunctionToCall
    {
        get { return functionToCall; }
        set { functionToCall = value; }
    }

    public int Duration
    {
        get { return duration; }
        set { duration …

我有一个属性网格,将引用一些属性.我想让属性网格中的一个项目成为一个按钮,或者甚至有一个椭圆形按钮,它就像一个普通胜利形式的按钮.

有没有办法做到这一点？

提前感谢您的帮助!

我正在从一个在while循环中的NetworkStream中读取.问题是我看到100%的CPU使用率.有没有办法阻止这种情况发生？

这是我到目前为止:

    while (client != null && client.Connected)
            {

                NetworkStream stream = client.GetStream();
                data = null;

                try
                {
                    // Check if we are still connected.
                    if (client.Client.Poll(0, SelectMode.SelectRead))
                    {
                        byte[] checkConn = new byte[1];

                        if (client.Client.Receive(checkConn, SocketFlags.Peek) == 0)
                        {
                            throw new IOException();
                        }
                    }

                    if (stream.DataAvailable)
                    {
                        //Read the first command
                        WriteToConsole("Waiting for next command");
                        data = ReadStringFromClient(client, stream);
                        WriteToConsole("Received Command: " + data);
                    }
                }

......代码继续......

ReadStringFromClient代码:

   private string ReadStringFromClient(TcpClient clientATF, NetworkStream currentStream)
    {
        int i;
        string builtString; …

C#的新手,并试图扩大我的能力.我在VB中有这个代码:

    Private Sub BreakdownFilesToCompare(ByRef file1BReader As BinaryReader, _
                                  ByRef file2BReader As BinaryReader, _
                                  ByRef firstFile As StandardFormatFile, _
                                  ByRef secondFile As StandardFormatFile)

    file1BReader.ReadInt32()
    file2BReader.ReadInt32()

    firstFile.numberOfSeries = file1BReader.ReadInt32
    secondFile.numberOfSeries = file2BReader.ReadInt32

    If firstFile.numberOfSeries <> secondFile.numberOfSeries Then
        WriteToConsole("The number of Elements the two files do not match...Stopping")
        Exit Sub
    End If

    For i As Integer = 0 To firstFile.numberOfSeries - 1

        Dim tempSeriesData1 As New StandardFormatFileSeries
        Dim tempSeriesData2 As New StandardFormatFileSeries

        tempSeriesData1.standardNumOfElements = file1BReader.ReadInt32
        tempSeriesData1.standardSeriesName = GetSeriesName(file1BReader)

        tempSeriesData2.standardNumOfElements = file2BReader.ReadInt32
        tempSeriesData2.standardSeriesName = …

我试图断开客户端与服务器的连接,但服务器仍然将其视为已连接.我无法找到解决方案,关闭,断开和关闭所有不工作.

我与客户端断开连接并检查服务器的一些代码:

客户:

  private void btnDisconnect_Click(object sender, EventArgs e)
    {
        connTemp.Client.Shutdown(SocketShutdown.Both);
        connTemp.Client.Disconnect(false);
        connTemp.GetStream().Close();
        connTemp.Close();
    }

服务器:

    while (client != null && client.Connected)
            {
                NetworkStream stream = client.GetStream();
                data = null;

                try
                {
                    if (stream.DataAvailable)
                    {
                        data = ReadStringFromClient(client, stream);
                        WriteToConsole("Received Command: " + data);
                    }
                } // So on and so on...

代码中还有更多的写入和读取.

希望你们都能提供帮助.

更新:我甚至尝试通过ref传递TCP客户端,假设存在范围问题和client.Connected即使在读取后仍然为真.出了什么问题？

第二次更新!!:

这是解决方案.先查看并确定是否已连接.

  if (client.Client.Poll(0, SelectMode.SelectRead))
                    {
                        byte[] checkConn = new byte[1];
                        if (client.Client.Receive(checkConn, SocketFlags.Peek) == 0)
                        {
                            throw new IOException();
                        }
                    }

我有以下代码:

 public void GetParameterSelectionSet(int wire, int bond, string processProgramPath)
    {

        string connectionString = "Provider=Microsoft.JET.OLEDB.4.0;" + "data source=" + processProgramPath + ";";
        using (OleDbConnection connection = new OleDbConnection(connectionString))
        {
            connection.Open();
            using (OleDbCommand command = new OleDbCommand("SELECT * " +
                                                        "FROM BONDS INNER JOIN WIRES on " +
                                                        "BONDS.WireID = WIRES.WireID " +
                                                        "WHERE (WIRES.OperationOrder =  '@WireOrder') AND" +
                                                        "(BONDS.OperationOrder = '@BondOrder')", connection))
            {
                command.Parameters.Add(new OleDbParameter("@WireOrder", OleDbType.Numeric));
                command.Parameters.Add(new OleDbParameter("@BondOrder", OleDbType.Numeric));
                command.Parameters["@WireOrder"].Value = wire;
                command.Parameters["@BondOrder"].Value = bond;


                var mytemp = command.ExecuteScalar();
            }
        } …

如果用户在我的主表单上选择某个项目,我会弹出一个小的登录屏幕.如何让我的代码停止执行直到我的登录表单关闭？

这就是我到目前为止所做的事情.基本上我想要在MyLogin关闭后执行代码.

    BMSSplash.MyLogin.Show()

    If isLoggedIn Then
        BMSSplash.MyBuddy.Show()
        Cursor.Current = Cursors.WaitCursor
    End If

我有以下代码:

private void SelectRowData(int wire, int bond, string svid)
{
    var results = from myRow in PPLoadedData.AsEnumerable()
                  where 
                      myRow.Field<Int32>("Wires.OperationOrder") == wire &&
                      myRow.Field<Int32>("Bonds.OperationOrder") == bond
                  select myRow[svid];
}

我可以看到,当我调试时,结果确实有我期望的单个字符串项.但是,我无法通过我所知的任何方式索引或迭代数据.

我正在寻找的是我可以访问数据的东西.

以下是调试器所说的内容:

名称:( new System.Linq.SystemCore_EnumerableDebugView(results)).Items [0]

价值:700.0

输入:object {double}

PPLoadedData是一个DataTable.

提前致谢.

我使用XMLWriter手动创建XML文档.有没有办法把它放在字符串形式,所以我可以把它写到我的数据库？

我在VB.Net编码

我试图插入访问数据库,PK是由DB生成的自动编号.我收到插入语句的语法错误,不知道为什么.如果可能,我想在同一语句中返回自动编号值.

这是我到目前为止所得到的.

   Dim cn As OleDbConnection
    Dim cmd As OleDbCommand
    Dim str As String

    Try
        cn = New OleDbConnection("Provider=microsoft.Jet.OLEDB.4.0;Data Source=G:\Sean\BMSBonder3_0.mdb;")
        cn.Open()
        str = String.Format("Insert into Bonder(BonderName, BonderConfig, Date, User) values ('{0}', '{1}', '{2}', '{3}')", addBonder.BonderName _
                    , xmlString, Date.Now.ToString, Environment.UserName)
        MsgBox(str)
        cmd = New OleDbCommand(str, cn)
        cmd.ExecuteNonQuery()
        cn.Close()

    Catch ex As Exception
        MsgBox(ex.Message)
        Return False
    End Try

    Return Nothing

显然在VB.Net中编码.在查询中,除自动编号字段外,设置所有字段值.

这是来自DLL的代码:

  public static bool SendCommand(string command)
    {

        KillTeraTerm();

        try
        {
            SerialPort portToUse = new SerialPort("COM2");

            portToUse.Open();
            portToUse.WriteLine(command);
            portToUse.Close();

            StartTeraTerm();

            return true;

        }
        catch
        {
            return false;
        }

    }

这是我用来引用dll的代码:

        Assembly loadedDLL = Assembly.LoadFile(@"G:\PRODUCT VALIDATION GROUP\SOFTWARE VALIDATION\Ranorex Support Files\RTSInterface.dll");
        Type rtsObj = loadedDLL.GetType("Oe.RTS.RTSInterface");
        Object obj = Activator.CreateInstance(rtsObj);

        try
        {
            rtsObj.InvokeMember("SendCommand", BindingFlags.InvokeMethod | BindingFlags.Static | BindingFlags.Public, null, obj, new object[] { "startbutton" });
        }
        catch (Exception ex)
        {
                MessageBox.Show(ex.Message);
        }

我知道我还没有使用返回值...只是想知道为什么这不起作用.

编辑!!!!

第一个异常:Message ="调用目标抛出了异常."

内部异常消息="请求失败"."

DeclaringMethod ='rtsObj.DeclaringMethod'引发了类型'System.InvalidOperationException'的异常

谢谢你的帮助.第一次使用反射,对不起的代码抱歉.

编辑#2 !!!

来自VS的堆栈跟踪:Saftey Door …

首先,我主要进行C#,.Net开发,所以如果这是一个愚蠢的问题,请继续.

我正在实现一个Ericcson开源项目,将图像转换为另一种格式.问题是在转换时输出到控制台发生如下...

1 file(s) copied.

我需要禁止弹出的对话框.我只想执行没有输出的系统命令.我想我已经隔离了引起这个问题的代码区域.

void writeOutputFile(char *dstfile, uint8* img, uint8* alphaimg, int width, int height)

{
    char str[300];
if(format!=ETC2PACKAGE_R_NO_MIPMAPS&&format!=ETC2PACKAGE_RG_NO_MIPMAPS) 
{
    fWritePPM("tmp.ppm",width,height,img,8,false);
    //PRINTF("Saved file tmp.ppm \n\n");
}
else if(format==ETC2PACKAGE_RG_NO_MIPMAPS) 
{
    fWritePPM("tmp.ppm",width,height,img,16,false);
}
if(format==ETC2PACKAGE_RGBA_NO_MIPMAPS||format==ETC2PACKAGE_RGBA1_NO_MIPMAPS||format==ETC2PACKAGE_sRGBA_NO_MIPMAPS||format==ETC2PACKAGE_sRGBA1_NO_MIPMAPS)
    fWritePGM("alphaout.pgm",width,height,alphaimg,false,8);
if(format==ETC2PACKAGE_R_NO_MIPMAPS)
    fWritePGM("alphaout.pgm",width,height,alphaimg,false,16);

// Delete destination file if it exists
if(fileExist(dstfile))
{
    sprintf(str, "del %s\n",dstfile);   
    system(str);
}

int q = find_pos_of_extension(dstfile);
if(!strcmp(&dstfile[q],".ppm")&&format!=ETC2PACKAGE_R_NO_MIPMAPS) 
{
    // Already a .ppm file. Just rename. 
    sprintf(str,"move tmp.ppm %s\n",dstfile);
    //PRINTF("Renaming destination file to %s\n",dstfile);
}
else
{
    // Converting from .ppm to …