/// <summary>
/// 释放由 System.Windows.Forms.InputBoxResult 使用的所有资源。
/// </summary>
public void Dispose()
{
if (this._IsDisposed)
{
return;
}
this._IsDisposed = true;
if (this._Form != null && !this._Form.IsDisposed)
{
try
{
this._Form.Dispose();
}
catch (Exception)
{
}
}
this._Form = null;
if (this._Editors != null)
{
this._Editors.Clear();
}
this._Editors = null;
}
/// <summary>
/// 显示一个输入框。
/// </summary>
/// <param name="owner">控件拥有者。</param>
/// <param name="parameters">输入框参数。</param>
/// <returns>返回输入框的值。</returns>
public static InputBoxResult InputBox(this Control owner, InputBoxParameters parameters)
{
if (owner != null && owner.InvokeRequired)
{
return((InputBoxResult)owner.Invoke(new Func <Control, InputBoxParameters, InputBoxResult>(InputBox), owner, parameters));
}
else
{
var form = new InputBoxForm(owner, parameters);
if (owner == null)
{
return(new InputBoxResult(parameters.Editors, form));
}
var ownerForm = owner.FindForm();
ownerForm.Activate();
var r = new InputBoxResult(parameters.Editors, form);
ownerForm.Activate();
return(r);
}
}
/// <summary>
/// 初始化 System.Windows.Forms.InputBoxResult 的新实例。
/// </summary>
/// <param name="editors">可输入控件的集合。</param>
/// <param name="form">输入框的窗体。</param>
internal InputBoxResult(List <Control> editors, InputBoxForm form)
{
this._Editors = editors;
this._Form = form;
}
}; // class InputBoxForm
// Pop up an input box and ask the user a question.
public static String InputBox
(String Prompt,
[Optional] [DefaultValue("")] String Title,
[Optional] [DefaultValue("")] String DefaultResponse,
[Optional] [DefaultValue(-1)] int XPos,
[Optional] [DefaultValue(-1)] int YPos)
{
// Consult the host to find the input box's parent window.
IVbHost host;
IWin32Window parent;
host = HostServices.VBHost;
if(host != null)
{
parent = host.GetParentWindow();
}
else
{
parent = null;
}
// Pop up the input box and wait for the response.
InputBoxForm form = new InputBoxForm
(Prompt, Title, DefaultResponse, XPos, YPos);
DialogResult result = form.ShowDialog(parent as Form);
String resultString = form.Result;
form.DisposeDialog();
// Return the result to the caller.
if(result == DialogResult.OK)
{
return resultString;
}
else
{
return String.Empty;
}
}
static public string Show(string Prompt, string Title, string Default, bool UseSystemPasswordChar)
{
InputBoxForm frmInputDialog = new InputBoxForm();
frmInputDialog.FormCaption = Title;
frmInputDialog.FormPrompt = Prompt;
frmInputDialog.Value = Default;
frmInputDialog.UseSystemPasswordChar = UseSystemPasswordChar;
return frmInputDialog.ShowDialog() == DialogResult.OK ? frmInputDialog.Value : null;
}
/// <summary>
/// 显示一个输入框。
/// </summary>
/// <param name="owner">控件拥有者。</param>
/// <param name="parameters">输入框参数。</param>
/// <returns>返回输入框的值。</returns>
public static InputBoxResult InputBox(this Control owner, InputBoxParameters parameters)
{
if (owner != null && owner.InvokeRequired)
{
return (InputBoxResult)owner.Invoke(new Func<Control, InputBoxParameters, InputBoxResult>(InputBox), owner, parameters);
}
else
{
var form = new InputBoxForm(owner, parameters);
if (owner == null)
{
return new InputBoxResult(parameters.Editors, form);
}
var ownerForm = owner.FindForm();
ownerForm.Activate();
var r = new InputBoxResult(parameters.Editors, form);
ownerForm.Activate();
return r;
}
}
