C#实现VB6.0的输入窗体InputBox代码

备注：新建一个类，粘贴上所有的一下代码就可以调用了

using System;

using System.Windows.Forms;

using System.Drawing;

class InputBox : Form

{

private Label labelText = new Label();

private TextBox textboxValue = new TextBox();

private Button buttonOK = new Button();

private bool onlyNumeric;

public InputBox()

{

Init();

}

private void Init()

{

this.Width = 400;

this.Height = 150;

this.StartPosition = FormStartPosition.CenterParent;

this.FormBorderStyle = FormBorderStyle.FixedDialog;

this.MinimizeBox = false;

this.MaximizeBox = false;

labelText.AutoSize = true;

labelText.Location = new Point(10, 20);

textboxValue.Location = new Point(10, (this.ClientSize.Height - textboxValue.Height) / 2);

textboxValue.Width = this.ClientSize.Width - 20;

buttonOK.Text = "确定(&O)";

buttonOK.Location = new Point((this.ClientSize.Width - buttonOK.Width) / 2, this.ClientSize.Height - buttonOK.Height - 10);

this.Controls.Add(labelText);

this.Controls.Add(textboxValue);

this.Controls.Add(buttonOK);

this.AcceptButton = buttonOK;

buttonOK.Click += new EventHandler(buttonOK_Click);

textboxValue.KeyPress += new KeyPressEventHandler(textboxValue_KeyPress);

}

void textboxValue_KeyPress(object sender, KeyPressEventArgs e)

{

if (onlyNumeric)

if ((e.KeyChar < (char)Keys.D0 || e.KeyChar > (char)Keys.D9) && e.KeyChar != (char)Keys.Back)

{

e.Handled = true;

}

}

/// <summary>

/// InputBox的静态函数，返回输入的字符串

/// </summary>

/// <param name="Title">窗口标题</param>

/// <param name="Text">提示文本</param>

/// <param name="DefaultValue">默认值</param>

/// <returns>返回字符串</returns>

public static string Input(string Title, string Text, string DefaultValue)

{

InputBox inputBox = new InputBox();

inputBox.Text = Title;

inputBox.labelText.Text = Text;

inputBox.textboxValue.Text = DefaultValue;

inputBox.textboxValue.SelectAll();

DialogResult result = inputBox.ShowDialog();

if (result == DialogResult.OK)

return inputBox.textboxValue.Text;

else

return DefaultValue;

}

/// <summary>

/// InputBox的静态函数，返回输入的字符串

/// </summary>

/// <param name="Title">窗口标题</param>

/// <param name="Text">提示文本</param>

/// <param name="DefaultValue">默认值</param>

/// <param name="OnlyNumeric">是否只允许输入数字</param>

/// <returns>返回字符串</returns>

public static string Input(string Title, string Text, string DefaultValue, bool OnlyNumeric)

{

InputBox inputBox = new InputBox();

inputBox.Text = Title;

inputBox.labelText.Text = Text;

inputBox.onlyNumeric = OnlyNumeric;

DialogResult result = inputBox.ShowDialog();

if (result == DialogResult.OK)

return inputBox.textboxValue.Text;

else

return DefaultValue;

}

private void buttonOK_Click(object sender, EventArgs e)

{

this.DialogResult = DialogResult.OK;

}

}