Возвращает строку, введенную пользователем; пустая строка, если они нажали Отмена :
public static String InputBox(String caption, String prompt, String defaultText)
{
String localInputText = defaultText;
if (InputQuery(caption, prompt, ref localInputText))
{
return localInputText;
}
else
{
return "";
}
}
Возвращает String
как параметр ref , возвращая true
, если они нажимают OK , или false
, если они нажимают Отмена :
public static Boolean InputQuery(String caption, String prompt, ref String value)
{
Form form;
form = new Form();
form.AutoScaleMode = AutoScaleMode.Font;
form.Font = SystemFonts.IconTitleFont;
SizeF dialogUnits;
dialogUnits = form.AutoScaleDimensions;
form.FormBorderStyle = FormBorderStyle.FixedDialog;
form.MinimizeBox = false;
form.MaximizeBox = false;
form.Text = caption;
form.ClientSize = new Size(
Toolkit.MulDiv(180, dialogUnits.Width, 4),
Toolkit.MulDiv(63, dialogUnits.Height, 8));
form.StartPosition = FormStartPosition.CenterScreen;
System.Windows.Forms.Label lblPrompt;
lblPrompt = new System.Windows.Forms.Label();
lblPrompt.Parent = form;
lblPrompt.AutoSize = true;
lblPrompt.Left = Toolkit.MulDiv(8, dialogUnits.Width, 4);
lblPrompt.Top = Toolkit.MulDiv(8, dialogUnits.Height, 8);
lblPrompt.Text = prompt;
System.Windows.Forms.TextBox edInput;
edInput = new System.Windows.Forms.TextBox();
edInput.Parent = form;
edInput.Left = lblPrompt.Left;
edInput.Top = Toolkit.MulDiv(19, dialogUnits.Height, 8);
edInput.Width = Toolkit.MulDiv(164, dialogUnits.Width, 4);
edInput.Text = value;
edInput.SelectAll();
int buttonTop = Toolkit.MulDiv(41, dialogUnits.Height, 8);
//Command buttons should be 50x14 dlus
Size buttonSize = Toolkit.ScaleSize(new Size(50, 14), dialogUnits.Width / 4, dialogUnits.Height / 8);
System.Windows.Forms.Button bbOk = new System.Windows.Forms.Button();
bbOk.Parent = form;
bbOk.Text = "OK";
bbOk.DialogResult = DialogResult.OK;
form.AcceptButton = bbOk;
bbOk.Location = new Point(Toolkit.MulDiv(38, dialogUnits.Width, 4), buttonTop);
bbOk.Size = buttonSize;
System.Windows.Forms.Button bbCancel = new System.Windows.Forms.Button();
bbCancel.Parent = form;
bbCancel.Text = "Cancel";
bbCancel.DialogResult = DialogResult.Cancel;
form.CancelButton = bbCancel;
bbCancel.Location = new Point(Toolkit.MulDiv(92, dialogUnits.Width, 4), buttonTop);
bbCancel.Size = buttonSize;
if (form.ShowDialog() == DialogResult.OK)
{
value = edInput.Text;
return true;
}
else
{
return false;
}
}
/// <summary>
/// Multiplies two 32-bit values and then divides the 64-bit result by a
/// third 32-bit value. The final result is rounded to the nearest integer.
/// </summary>
public static int MulDiv(int nNumber, int nNumerator, int nDenominator)
{
return (int)Math.Round((float)nNumber * nNumerator / nDenominator);
}
Примечание : любой код публикуется в открытом доступе. Указание авторства не требуется.