家有小虎

… 并且避免 ASP.NET 验证控件错误:

This page contains content or formatting that is not valid. You can find more information in the affected sections.

or

Input string was not in a correct format.

当创建一个WebPart来显示包含验证控件的表单时, ASP.NET 验证控件会阻止你签入和发布当前的Publishing页面.

解决方案:

• Check if the web part is in edit or design mode and only add the validator if not:if (this.WebPartManager.DisplayMode != WebPartManager.EditDisplayMode &&
  this.WebPartManager.DisplayMode != WebPartManager.DesignDisplayMode)
  {
  // in display mode
  }

  This solution applies only if you have a single web part on the page, because you can only check if the current web part is in display/edit/design mode.

• Another solution is using the EditModePanel. It allows you to add contols to the page in display or edit mode.
  For example:

  // add the EditBox to the page in edit mode
  EditModePanelpanel = newEditModePanel();
  TextBoxtextBox = newTextBox();

  panel.Controls.Add(textBox);
  panel.PageDisplayMode = PageDisplayMode.Edit;
  this.Controls.Add(panel);

  This solution didn’t work. Some replection shows me that the panel uses this function (which is obfuscated): public staticSPControlModeGetContextualFormModeFromPostedForm()
  This function comes from the internal class ConsoleUtilities.

• The solution that worked for me was quite simple:

  // check if the form is in display mode
  bool inDisplayMode = SPContext.Current.FormContext.FormMode == SPControlMode.Display;

Well, good luck ;)

来源: http://blogs.microsoft.co.il/blogs/justguy/archive/2008/08/13/checking-if-a-publishing-page-is-in-edit-mode.aspx