什么是VB.net的InputDialog的C#版本？

Question

什么是VB.net的InputBox的C#版本？

Answer 1

加入一个参考Microsoft.VisualBasic,InputBox是在Microsoft.VisualBasic.Interaction命名空间:

using Microsoft.VisualBasic;
string input = Interaction.InputBox("Prompt", "Title", "Default", -1, -1);

Answer 2

把它们加起来:

• 有没有在C# .

• 您可以通过添加对Microsoft.VisualBasic的引用来使用Visual Basic中的对话框:

  1. 在解决方案资源管理器中,右键单击" 引用"文件夹.
  2. 选择添加参考...
  3. 在.NET选项卡中(在较新的Visual Studio版本 - 程序集选项卡中) - 选择Microsoft.VisualBasic
  4. 单击" 确定"

然后你可以使用前面提到的代码:

string input = Microsoft.VisualBasic.Interaction.InputBox("Prompt", "Title", "Default", 0, 0);

• 编写自己的InputBox.
• 使用别人的.

也就是说,我建议您首先考虑输入框的需要.对话并不总是最好的做事方式,有时它们弊大于利 - 但这取决于具体情况.

Answer 3

动态创建对话框.您可以根据自己的口味定制.

注意除了winform之外没有外部依赖

private static DialogResult ShowInputDialog(ref string input)
    {
        System.Drawing.Size size = new System.Drawing.Size(200, 70);
        Form inputBox = new Form();

        inputBox.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
        inputBox.ClientSize = size;
        inputBox.Text = "Name";

        System.Windows.Forms.TextBox textBox = new TextBox();
        textBox.Size = new System.Drawing.Size(size.Width - 10, 23);
        textBox.Location = new System.Drawing.Point(5, 5);
        textBox.Text = input;
        inputBox.Controls.Add(textBox);

        Button okButton = new Button();
        okButton.DialogResult = System.Windows.Forms.DialogResult.OK;
        okButton.Name = "okButton";
        okButton.Size = new System.Drawing.Size(75, 23);
        okButton.Text = "&OK";
        okButton.Location = new System.Drawing.Point(size.Width - 80 - 80, 39);
        inputBox.Controls.Add(okButton);

        Button cancelButton = new Button();
        cancelButton.DialogResult = System.Windows.Forms.DialogResult.Cancel;
        cancelButton.Name = "cancelButton";
        cancelButton.Size = new System.Drawing.Size(75, 23);
        cancelButton.Text = "&Cancel";
        cancelButton.Location = new System.Drawing.Point(size.Width - 80, 39);
        inputBox.Controls.Add(cancelButton);

        inputBox.AcceptButton = okButton;
        inputBox.CancelButton = cancelButton; 

        DialogResult result = inputBox.ShowDialog();
        input = textBox.Text;
        return result;
    }

用法

string input="hede";
ShowInputDialog(ref input);

Answer 4

没有一个.如果你真的想在C#中使用VB InputBox,你可以.只需添加对Microsoft.VisualBasic.dll的引用,您就可以在那里找到它.

但我建议不要使用它.它是丑陋的,过时的IMO.

Answer 5

您不仅应该将Microsoft.VisualBasic添加到项目的引用列表中,还应该声明'using Microsoft.VisualBasic;' 所以你只需要使用'Interaction.Inputbox("...")'而不是Microsoft.VisualBasic.Interaction.Inputbox

Answer 6

返回用户输入的字符串; 如果它们击中空字符串Cancel:

    public static String InputBox(String caption, String prompt, String defaultText)
    {
        String localInputText = defaultText;
        if (InputQuery(caption, prompt, ref localInputText))
        {
            return localInputText;
        }
        else
        {
            return "";
        }
    }

返回String作为ref参数,true如果它们命中OK,或者false如果它们命中,则返回Cancel:

    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);
    }

注意:任何代码都将发布到公共域中.无需归属.