没有发现在细胞的任何控制

private void btnSaveStudy_Click(object sender, EventArgs e) 
     { 
      string valueFromlbl = string.Empty; 

      for(int i = 0; i < tableContent.Rows.Count; i++) 
      { 
       for(int j = 0; j < tableContent.Rows[i].Cells.Count; j++) 
       { 
        foreach(Control ctrl in tableContent.Rows[i].Cells[j].Controls) 
        { 
         Label lbl = ctrl as Label; 
         if(lbl != null) 
         { 
          valueFromlbl = lbl.Text; 
         } 
        } 
       } 
      } 
     } 

protected void Page_Load(object sender, EventArgs e) 
{ 
HtmlTable table = null; 
       HtmlTableRow row = null; 
       HtmlTableCell cell = null; 
       studyNumber = studyNumber + 1; 
       uniqueID = uniqueID + 1; 

       for(int i = 0; i < 5; i++) 
       { 
        table = new HtmlTable(); 
        row = new HtmlTableRow(); 

        tableContent.Controls.AddAt(i, row); 
        for(int j = 0; j < 3; j++) 
        { 
         cell = new HtmlTableCell(); 
         cell.Attributes.Add("Class", "csstablelisttd"); 
         row.Attributes.Add("Class", "csstextheader"); 
         row.Controls.AddAt(j, cell); 

         if(i == 0 && j == 0) 
         { 
          cell.InnerText = "Study : " + Convert.ToInt32(studyNumber); 

         } 
         else if(i == 1 && j == 0) 
         { 
          cell.InnerText = "Modality" + " : " + modality; 
         } 
         else if(i == 2 && j == 0) 
         { 
          cell.InnerText = "Start Date" + " : " + DateTime.Now.ToString("dd-MMM-yyyy"); 
         } 
         else if(i == 3 && j == 0) 
         { 
          cell.InnerText = "Accession Number" + " : " + accessionNumber; 
         } 
         else if(i == 4 && j == 0) 
         { 
          Button btnSaveStudy = new Button(); 
          btnSaveStudy.ID = "btnSaveStudy" + uniqueID; 
          btnSaveStudy.Text = "Save"; 
          btnSaveStudy.Attributes.Add("Class", "cssbutton"); 
          cell.Controls.Add(btnSaveStudy); 
          btnSaveStudy.Click += new EventHandler(btnSaveStudy_Click); 
         } 
         if(i == 1 && j == 1) 
         { 
          cell.InnerText = "AE Title" + " : " + schedule_Station_AE_Title; 
         } 
         else if(i == 1 && j == 2) 
         { 
          cell.InnerText = "Station Name" + " : " + schedule_Station_Name; 
         } 
         else if(i == 2 && j == 1) 
         { 
          cell.InnerText = "Start time" + " : " + startTime; 
         } 
         else if(i == 3 && j == 1) 
         { 
          cell.InnerText = "End time" + " : " + endTime; 
         } 

         else if(i == 2 && j == 2) 
         { 
          Label lblPriority = new Label(); 
          lblPriority.ID = "lblPriority" + uniqueID; 
          lblPriority.Text = "Priority : "; 
          DropDownList ddlPriority = new DropDownList(); 
          ddlPriority.ID = "ddlPriority" + uniqueID; 
          ddlPriority.Attributes.Add("Class", "csstextbox"); 
          ddlPriority.Items.Add(new ListItem("MEDIUM", "4")); 
          ddlPriority.Items.Add(new ListItem("STAT", "1")); 
          ddlPriority.Items.Add(new ListItem("HIGH", "2")); 
          ddlPriority.Items.Add(new ListItem("ROUTINE", "3")); 
          ddlPriority.Items.Add(new ListItem("LOW", "5")); 
          cell.Controls.Add(lblPriority); 
          cell.Controls.Add(ddlPriority); 
         } 
         else if(i == 3 && j == 2) 
         { 
          Label lblStudy = new Label(); 
          lblStudy.ID = "lblStudy" + uniqueID; 
          lblStudy.Text = "Study : "; 
          DropDownList ddlStudyList = new DropDownList(); 
          ddlStudyList = BindStudy(ddlStudyList, Convert.ToInt32(acqModalityID), uniqueID); 
          ddlStudyList.Attributes.Add("Class", "csstextbox"); 
          cell.Controls.Add(lblStudy); 
          cell.Controls.Add(ddlStudyList); 
         } 
        } 
       } 
      }} 
I have added controls to table cell but not find any control

来源

2012-11-01 lax

这是ASP.NET吗？如果是这样，请加上标记。你在哪里添加了控件以及如何？ –

asp.net ..................... – lax

你只是在寻找'Label'控件。你在调试器中运行它，看看有哪些控件？您可能正在寻找'Literal'控件。 –

这似乎与执行顺序的问题。请记住，您的控件只有在点击事件之后才会添加。所以当你点击按钮时，控件需要重新添加，然后才能检查它们的存在。

（我会张贴此作为评论，但显然，因为我是新的，我没有足够的积分）

来源

2012-11-01 14:54:29 rune711

通在页面的根源，看看如果你正在寻找的控制回来

private Control FindControlRecursive(Control rootControl, string controlID) 
{ 
    if (rootControl.ID == controlID) return rootControl; 

    foreach (Control controlToSearch in rootControl.Controls) 
    { 
     Control controlToReturn = 
      FindControlRecursive(controlToSearch, controlID); 
     if (controlToReturn != null) return controlToReturn; 
    } 
    return null; 
}

来源

2012-11-01 14:49:46 Joe

你只是忘记了表自身添加到页面的控制-采集。

Page.Controls.Add(table);

（倒不如将其添加到一个容器控件像PlaceHolder或Panel代替）

来源

2012-11-01 14:52:46

没有发现在细胞的任何控制

回答

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