小编noo*_*mer的帖子

我在html中有按钮

<input type="button" value="Clear"> 
<textarea id='output' rows=20 cols=90></textarea>

如果我有一个外部javascript(.js)函数,我该怎么写？

我在XCode上编译现有项目时遇到此错误.我尝试使用Google云端硬盘快速入门(第3步)https://developers.google.com/drive/ios/quickstart,完成所有8个步骤后,我收到4个Apple Mach-O链接器错误错误.然后我解除了所有步骤,但更糟糕的是.

Undefined symbols for architecture i386:
      "_initGenericErrorDefaultFunc", referenced from:
          ___23+[DDXMLNode initialize]_block_invoke in DDXMLNode.o
      "_xmlAddChild", referenced from:
          -[DDXMLElement addAttribute:] in DDXMLElement.o
          -[DDXMLElement addChild:] in DDXMLElement.o
          -[DDXMLElement insertChild:atIndex:] in DDXMLElement.o
          _xmpp_xmlStartElement in XMPPParser.o
          _xmpp_xmlCharacters in XMPPParser.o
      "_xmlAddPrevSibling", referenced from:
          -[DDXMLElement insertChild:atIndex:] in DDXMLElement.o
      "_xmlBufferCreate", referenced from:
          -[DDXMLNode XMLStringWithOptions:] in DDXMLNode.o
      "_xmlBufferFree", referenced from:
          -[DDXMLNode XMLStringWithOptions:] in DDXMLNode.o
      "_xmlCopyDoc", referenced from:
          -[DDXMLNode copyWithZone:] in DDXMLNode.o
      "_xmlCopyDtd", referenced from:
          -[DDXMLNode copyWithZone:] in DDXMLNode.o
      "_xmlCopyNamespace", referenced from:
          -[DDXMLNode copyWithZone:] in DDXMLNode.o
      "_xmlCopyNode", …

我有一个转发器,用DataTables图书馆包装它.这是以下js函数.

function createDataTable() {
    $(document).ready(function() {
        $('#tblMessages').dataTable({
            "sPaginationType": "full_numbers",
            "sDom": '<"clreol"lf><"scrollable_datatable"rt><"clreol"ip>',
            "bPaginate": true,
            "bLengthChange": false,
            "bFilter": true,
            "bInfo": false,
            "bAutoWidth": false,
            "bAutoHeight": false,
            "bSort": false,
            "bStateSave": true,
            "iCookieDuration": 60*60*24
        });
    });
}

我完全没有分页只是转发器右侧的滚动条.我在控制台上得到了这个:

Uncaught TypeError: Cannot set property '0' of undefined jquery.dataTables.min.js:366
Y                                                        jquery.dataTables.min.js:366
(anonymous function)                                     jquery.dataTables.min.js:454
jQuery.extend.each                                       jquery.min.js:21
jQuery.fn.jQuery.each                                    jquery.min.js:12
i.fn.dataTable                                           jquery.dataTables.min.js:434
(anonymous function)                                     Message.aspx:156
jQuery.fn.extend.ready                                   jquery.min.js:26
createDataTable                                          Message.aspx:152

怎么了？我该怎么办？

起初我有一个简单的白色矩形棱镜,如下所示:

这是代码:

 glBegin(GL_QUADS);               

      glColor3f(255,255,255);    
      glVertex3f( 0.3, 0, 2.5);//sisi bawah
      glVertex3f(0.5, 0, 2.5);
      glVertex3f(0.5, 0,  2.6);
      glVertex3f( 0.3, 0,  2.6);

      glVertex3f(0.5, 0,  2.6);//sisi kiri
      glVertex3f( 0.3, 0,  2.6);
      glVertex3f( 0.3, 1.5,  2.6);
      glVertex3f(0.5, 1.5,  2.6);

      glVertex3f(0.5, 0, 2.5);//sisi depan
      glVertex3f(0.5, 0,  2.6);
      glVertex3f(0.5, 1.5,  2.6);
      glVertex3f(0.5, 1.5,  2.5);

      glVertex3f( 0.3, 0, 2.5);//sisi belakang
      glVertex3f( 0.3, 0,  2.6);
      glVertex3f( 0.3, 1.5,  2.6);
      glVertex3f( 0.3, 1.5, 2.5);

      glVertex3f( 0.3, 1.5, 2.5);//sisi atas
      glVertex3f(0.5, 1.5, 2.5);
      glVertex3f(0.5, 1.5,  2.6);
      glVertex3f( 0.3, 1.5,  2.6);

      glVertex3f(0.5, …

我想在datagridview中手动更改列宽.我该怎么办？我应该更改designer.cs中的代码还是只更改.cs中的代码？

我在代码中添加了一些内容,但它不起作用:

dataGridView1.Columns[0].Width = 200;

这是我的代码:

private void sqlConnResident()
        {
            BindingSource dbBindSource = new BindingSource();

            SqlCommand com;
            com = new SqlCommand();
            SqlConnection con = new SqlConnection(strCon);

            com.Connection = con;
            com.CommandType = CommandType.StoredProcedure;
            com.CommandText = "view_penghuni";

            SqlDataAdapter dataAdapter = new SqlDataAdapter(com);

            IDCabang = new SqlParameter();
            IDCabang.SqlDbType = SqlDbType.VarChar;
            IDCabang.Size = 5;
            IDCabang.ParameterName = "@IDCabang";
            IDCabang.Value = IDCabangC;
            IDCabang.Direction = ParameterDirection.Input;

            com.Parameters.Add(IDCabang);

            con.Open();

            DataTable table = new DataTable();
            table.Locale = System.Globalization.CultureInfo.InvariantCulture;
            dataAdapter.Fill(table);
            dbBindSource.DataSource = table;

            //dataGridView1.AutoResizeColumns(DataGridViewAutoSizeColumnsMode.AllCellsExceptHeader);
            // you can make it grid …

基本上，我有一个浏览按钮来打开文件对话框并将图片提取到文本框和图片框中。但是，我希望在用户打开文件对话框之前显示默认图片（如 Facebook 默认个人资料图片）。当用户打开文件对话框，选择一张图片并点击确定后，默认图片将变为选中的图片。如果用户单击取消，则默认图片不会更改。

我的问题：

1. 我应该把默认图片放在哪里？（在与 .SLN 或其他任何地方相同路径的文件夹中）？
2. 我应该编写什么代码才能在我的图片框中显示默认图片？

这是我的以下代码：

private void buttonbrowse_Click(object sender, EventArgs e)
{
    OpenFileDialog ofd = new OpenFileDialog();
    ofd.Filter = "image files|*.jpg;*.png;*.gif";
    DialogResult dr = ofd.ShowDialog();

    if (dr == DialogResult.Cancel)
        return;

    pictureBoxPhoto.Image = Image.FromFile(ofd.FileName);
    textBoxPhoto.Text = ofd.FileName;

}

如何更改/替换文本:"Hello"使用javascript代替"再见"？

<h1 class="titlearea win-type-ellipsis" id="title">
     <span class="pagetitle" >
            Hello
     </span>
</h1>

我有一个包含相应名称和分数的dataTable .我想根据分数对它进行排序.

这是DB.cs中的代码:

public class DB
    {
        public DataTable GetData()
        {
            string spName = "GetTime";
            Connection.Open();

            SqlCommand command = new SqlCommand(spName, Connection);
            command.CommandType = CommandType.StoredProcedure;

            SqlDataReader reader = command.ExecuteReader();
            DataTable dt = new DataTable();
            dt.Columns.Add("Name");
            dt.Columns.Add("Time");

            while (reader.Read())
            {
                DataRow dr = dt.NewRow();
                dr["Name"] = Convert.ToString(reader["name"]);
                dr["Time"] = Convert.ToInt32(reader["timeScore"]);
                dt.Rows.Add(dr);
            }
            Connection.Close();
            return dt;
        }
    }

这是在Form3.cs上

public partial class Form3 : Form
    {
        private Form2 form2;
        public Form3()
        {
            InitializeComponent();
            loadData();
        }

        public void loadData()
        {
            form2 …