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在.NET Framework中并没有类似VB中的InputBox函数,虽然可以借助对VB 的Runtime引用,以在VB除外的.NET程序中使用VB的InputBox,但是为什么不自己写一个类实现类似的功能呢? 下面一个类实现了类似的InputBox函数的功能: using System; using System.Windows.Forms;
namespace Input { /// /// clsInputBox 的摘要说明。 /// public class InputBox : System.Windows.Forms.Form { private System.Windows.Forms.TextBox txtData; private System.Windows.Forms.Label lblInfo; private System.ComponentModel.Container components = null;
private InputBox() { InitializeComponent(); }
protected override void Dispose( bool disposing ) { if( disposing ) { if(components != null) { components.Dispose(); } } base.Dispose( disposing ); }
private void InitializeComponent() { this.txtData = new System.Windows.Forms.TextBox(); this.lblInfo = new System.Windows.Forms.Label(); this.SuspendLayout(); // // txtData // this.txtData.Font = new System.Drawing.Font("宋体", 10.5F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134))); this.txtData.Location = new System.Drawing.Point(19, 8); this.txtData.Name = "txtData"; this.txtData.Size = new System.Drawing.Size(317, 23); this.txtData.TabIndex = 0; this.txtData.Text = ""; this.txtData.KeyDown += new System.Windows.Forms.KeyEventHandler(this.txtData_KeyDown); // // lblInfo // this.lblInfo.BackColor = System.Drawing.SystemColors.Info; this.lblInfo.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D; this.lblInfo.FlatStyle = System.Windows.Forms.FlatStyle.System; this.lblInfo.Font = new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134))); this.lblInfo.ForeColor = System.Drawing.Color.Gray; this.lblInfo.Location = new System.Drawing.Point(19, 32); this.lblInfo.Name = "lblInfo"; this.lblInfo.Size = new System.Drawing.Size(317, 16); this.lblInfo.TabIndex = 1; this.lblInfo.Text = "[Enter]确认 | [Esc]取消"; // // InputBox // this.AutoScaleBaseSize = new System.Drawing.Size(6, 14); this.ClientSize = new System.Drawing.Size(350, 48); this.ControlBox = false; this.Controls.Add(this.lblInfo); this.Controls.Add(this.txtData); this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog; this.Name = "InputBox"; this.Text = "InputBox"; this.ResumeLayout(false);
} //对键盘进行响应 private void txtData_KeyDown(object sender, System.Windows.Forms.KeyEventArgs e) { if(e.KeyCode == Keys.Enter) { this.Close(); } else if (e.KeyCode == Keys.Escape ) { txtData.Text = string.Empty ; this.Close(); } } //显示InputBox public static string ShowInputBox(string Title,string keyInfo) { InputBox inputbox = new InputBox(); inputbox.Text =Title; if (keyInfo.Trim() != string.Empty ) inputbox.lblInfo.Text =keyInfo; inputbox.ShowDialog(); return inputbox.txtData.Text; }
} } 直接调用该类的静态方法ShowInputBox就可以,其中Title参数是对话框的Text,keyInfo参数是标签lblInfo(可以显示自定义的信息)的Text。具体调用如下: private void button_Click(object sender, System.EventArgs e) { //Microsoft.VisualBasic.Interaction.InputBox( "type your name ", "input ","",0,0); //可以将你要显示的文本信息代替下面的string.Empty。 string inMsg= Input.InputBox.ShowInputBox("输入信息",string.Empty ); //对用户的输入信息进行检查 if (inMsg.Trim() != string.Empty ) { MessageBox.Show(inMsg); } else if { MessageBox.Show(“输入为string.Empty”); } }
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