官网

http://www.hzhcontrols.com

前提

入行已经7,8年了，一直想做一套漂亮点的自定义控件，于是就有了本系列文章。

GitHub：https://github.com/kwwwvagaa/NetWinformControl

码云：https://gitee.com/kwwwvagaa/net_winform_custom_control.git

如果觉得写的还行，请点个 star 支持一下吧

欢迎前来交流探讨：企鹅群568015492

idkey=6e08741ef16fe53bf0314c1c9e336c4f626047943a8b76bac062361bab6b4f8d">

准备工作

这是一个提示消息的窗体，他继承自基类窗体FrmBase，如果你对FrmBase还不了解，请移步（十七）c#Winform自定义控件-基类窗体查看

提示消息窗体支持有确定取消按钮及单取消按钮，更多操作按钮暂没有增加

开始

添加一个Form命名为FrmDialog ，继承FrmBase

私有的构造函数

  private FrmDialog(

             string strMessage,

             string strTitle,

             bool blnShowCancel = false,

             bool blnShowClose = false,

             bool blnisEnterClose = true)

         {

             InitializeComponent();

             if (!string.IsNullOrWhiteSpace(strTitle))

                 lblTitle.Text = strTitle;

             lblMsg.Text = strMessage;

             if (blnShowCancel)

             {

                 this.tableLayoutPanel1.ColumnStyles[].Width = ;

                 this.tableLayoutPanel1.ColumnStyles[].Width = ;

             }

             else

             {

                 this.tableLayoutPanel1.ColumnStyles[].Width = ;

                 this.tableLayoutPanel1.ColumnStyles[].Width = ;

             }

             btnClose.Visible = blnShowClose;

             blnEnterClose = blnisEnterClose;

         }

搭配一个静态的公共函数

    #region 显示一个模式信息框

         /// <summary>

         /// 功能描述:显示一个模式信息框

         /// 作　　者:HZH

         /// 创建日期:2019-03-04 15:49:48

         /// 任务编号:POS

         /// </summary>

         /// <param name="owner">owner</param>

         /// <param name="strMessage">strMessage</param>

         /// <param name="strTitle">strTitle</param>

         /// <param name="blnShowCancel">blnShowCancel</param>

         /// <param name="isShowMaskDialog">isShowMaskDialog</param>

         /// <param name="blnShowClose">blnShowClose</param>

         /// <param name="isEnterClose">isEnterClose</param>

         /// <returns>返回值</returns>

         public static DialogResult ShowDialog(

             IWin32Window owner,

             string strMessage,

             string strTitle = "提示",

             bool blnShowCancel = false,

             bool isShowMaskDialog = true,

             bool blnShowClose = false,

             bool blnIsEnterClose = true)

         {

             DialogResult result = DialogResult.Cancel;

             if (owner == null || (owner is Control && (owner as Control).IsDisposed))

             {

                 result = new FrmDialog(strMessage, strTitle, blnShowCancel, blnShowClose, blnIsEnterClose)

                 {

                     StartPosition = FormStartPosition.CenterScreen,

                     IsShowMaskDialog = isShowMaskDialog,

                     TopMost = true

                 }.ShowDialog();

             }

             else

             {

                 if (owner is Control)

                 {

                     owner = (owner as Control).FindForm();

                 }

                 result = new FrmDialog(strMessage, strTitle, blnShowCancel, blnShowClose, blnIsEnterClose)

                 {

                     StartPosition = (owner != null) ? FormStartPosition.CenterParent : FormStartPosition.CenterScreen,

                     IsShowMaskDialog = isShowMaskDialog,

                     TopMost = true

                 }.ShowDialog(owner);

             }

             return result;

         }

         #endregion

一些小事件

 private void btnOK_BtnClick(object sender, EventArgs e)

         {

             this.DialogResult = System.Windows.Forms.DialogResult.OK;

         }

         private void btnCancel_BtnClick(object sender, EventArgs e)

         {

             this.DialogResult = System.Windows.Forms.DialogResult.Cancel;

         }

         private void btnClose_MouseDown(object sender, MouseEventArgs e)

         {

             this.DialogResult = System.Windows.Forms.DialogResult.Cancel;

         }

         protected override void DoEnter()

         {

             if (blnEnterClose)

                 this.DialogResult = System.Windows.Forms.DialogResult.OK;

         }

代码就这么多，看下完整代码

 // 版权所有  黄正辉  交流群：568015492   QQ：623128629

 // 文件名称：FrmDialog.cs

 // 创建日期：2019-08-15 16:04:36

 // 功能描述：FrmDialog

 // 项目地址：https://gitee.com/kwwwvagaa/net_winform_custom_control

 using System;

 using System.Collections.Generic;

 using System.ComponentModel;

 using System.Data;

 using System.Drawing;

 using System.Linq;

 using System.Text;

 using System.Windows.Forms;

 namespace HZH_Controls.Forms

 {

     public partial class FrmDialog : FrmBase

     {

         bool blnEnterClose = true;

         private FrmDialog(

             string strMessage,

             string strTitle,

             bool blnShowCancel = false,

             bool blnShowClose = false,

             bool blnisEnterClose = true)

         {

             InitializeComponent();

             if (!string.IsNullOrWhiteSpace(strTitle))

                 lblTitle.Text = strTitle;

             lblMsg.Text = strMessage;

             if (blnShowCancel)

             {

                 this.tableLayoutPanel1.ColumnStyles[].Width = ;

                 this.tableLayoutPanel1.ColumnStyles[].Width = ;

             }

             else

             {

                 this.tableLayoutPanel1.ColumnStyles[].Width = ;

                 this.tableLayoutPanel1.ColumnStyles[].Width = ;

             }

             //btnCancel.Visible = blnShowCancel;

             //ucSplitLine_V1.Visible = blnShowCancel;

             btnClose.Visible = blnShowClose;

             blnEnterClose = blnisEnterClose;

             //if (blnShowCancel)

             //{

             //    btnOK.BtnForeColor = Color.FromArgb(255, 85, 51);

             //}

         }

         #region 显示一个模式信息框

         /// <summary>

         /// 功能描述:显示一个模式信息框

         /// 作　　者:HZH

         /// 创建日期:2019-03-04 15:49:48

         /// 任务编号:POS

         /// </summary>

         /// <param name="owner">owner</param>

         /// <param name="strMessage">strMessage</param>

         /// <param name="strTitle">strTitle</param>

         /// <param name="blnShowCancel">blnShowCancel</param>

         /// <param name="isShowMaskDialog">isShowMaskDialog</param>

         /// <param name="blnShowClose">blnShowClose</param>

         /// <param name="isEnterClose">isEnterClose</param>

         /// <returns>返回值</returns>

         public static DialogResult ShowDialog(

             IWin32Window owner,

             string strMessage,

             string strTitle = "提示",

             bool blnShowCancel = false,

             bool isShowMaskDialog = true,

             bool blnShowClose = false,

             bool blnIsEnterClose = true)

         {

             DialogResult result = DialogResult.Cancel;

             if (owner == null || (owner is Control && (owner as Control).IsDisposed))

             {

                 result = new FrmDialog(strMessage, strTitle, blnShowCancel, blnShowClose, blnIsEnterClose)

                 {

                     StartPosition = FormStartPosition.CenterScreen,

                     IsShowMaskDialog = isShowMaskDialog,

                     TopMost = true

                 }.ShowDialog();

             }

             else

             {

                 if (owner is Control)

                 {

                     owner = (owner as Control).FindForm();

                 }

                 result = new FrmDialog(strMessage, strTitle, blnShowCancel, blnShowClose, blnIsEnterClose)

                 {

                     StartPosition = (owner != null) ? FormStartPosition.CenterParent : FormStartPosition.CenterScreen,

                     IsShowMaskDialog = isShowMaskDialog,

                     TopMost = true

                 }.ShowDialog(owner);

             }

             return result;

         }

         #endregion

         private void btnOK_BtnClick(object sender, EventArgs e)

         {

             this.DialogResult = System.Windows.Forms.DialogResult.OK;

         }

         private void btnCancel_BtnClick(object sender, EventArgs e)

         {

             this.DialogResult = System.Windows.Forms.DialogResult.Cancel;

         }

         private void btnClose_MouseDown(object sender, MouseEventArgs e)

         {

             this.DialogResult = System.Windows.Forms.DialogResult.Cancel;

         }

         protected override void DoEnter()

         {

             if (blnEnterClose)

                 this.DialogResult = System.Windows.Forms.DialogResult.OK;

         }

         private void FrmDialog_VisibleChanged(object sender, EventArgs e)

         {

         }

     }

 }

 namespace HZH_Controls.Forms

 {

     partial class FrmDialog

     {

         /// <summary>

         /// Required designer variable.

         /// </summary>

         private System.ComponentModel.IContainer components = null;

         /// <summary>

         /// Clean up any resources being used.

         /// </summary>

         /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>

         protected override void Dispose(bool disposing)

         {

             if (disposing && (components != null))

             {

                 components.Dispose();

             }

             base.Dispose(disposing);

         }

         #region Windows Form Designer generated code

         /// <summary>

         /// Required method for Designer support - do not modify

         /// the contents of this method with the code editor.

         /// </summary>

         private void InitializeComponent()

         {

             System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(FrmDialog));

             this.btnClose = new System.Windows.Forms.Panel();

             this.panel1 = new System.Windows.Forms.Panel();

             this.tableLayoutPanel1 = new System.Windows.Forms.TableLayoutPanel();

             this.btnCancel = new HZH_Controls.Controls.UCBtnExt();

             this.ucSplitLine_V1 = new HZH_Controls.Controls.UCSplitLine_V();

             this.btnOK = new HZH_Controls.Controls.UCBtnExt();

             this.lblMsg = new System.Windows.Forms.Label();

             this.lblTitle = new System.Windows.Forms.Label();

             this.ucSplitLine_H1 = new HZH_Controls.Controls.UCSplitLine_H();

             this.ucSplitLine_H2 = new HZH_Controls.Controls.UCSplitLine_H();

             this.panel1.SuspendLayout();

             this.tableLayoutPanel1.SuspendLayout();

             this.SuspendLayout();

             //

             // btnClose

             //

             this.btnClose.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));

             this.btnClose.BackgroundImage = global::HZH_Controls.Properties.Resources.dialog_close;

             this.btnClose.BackgroundImageLayout = System.Windows.Forms.ImageLayout.Zoom;

             this.btnClose.Location = new System.Drawing.Point(, );

             this.btnClose.Name = "btnClose";

             this.btnClose.Size = new System.Drawing.Size(, );

             this.btnClose.TabIndex = ;

             this.btnClose.MouseDown += new System.Windows.Forms.MouseEventHandler(this.btnClose_MouseDown);

             //

             // panel1

             //

             this.panel1.Controls.Add(this.tableLayoutPanel1);

             this.panel1.Dock = System.Windows.Forms.DockStyle.Bottom;

             this.panel1.Location = new System.Drawing.Point(, );

             this.panel1.Name = "panel1";

             this.panel1.Size = new System.Drawing.Size(, );

             this.panel1.TabIndex = ;

             //

             // tableLayoutPanel1

             //

             this.tableLayoutPanel1.ColumnCount = ;

             this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 50F));

             this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Absolute, 1F));

             this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 50F));

             this.tableLayoutPanel1.Controls.Add(this.btnCancel, , );

             this.tableLayoutPanel1.Controls.Add(this.ucSplitLine_V1, , );

             this.tableLayoutPanel1.Controls.Add(this.btnOK, , );

             this.tableLayoutPanel1.Dock = System.Windows.Forms.DockStyle.Fill;

             this.tableLayoutPanel1.Location = new System.Drawing.Point(, );

             this.tableLayoutPanel1.Margin = new System.Windows.Forms.Padding();

             this.tableLayoutPanel1.Name = "tableLayoutPanel1";

             this.tableLayoutPanel1.RowCount = ;

             this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Percent, 100F));

             this.tableLayoutPanel1.Size = new System.Drawing.Size(, );

             this.tableLayoutPanel1.TabIndex = ;

             //

             // btnCancel

             //

             this.btnCancel.BackColor = System.Drawing.Color.Transparent;

             this.btnCancel.BtnBackColor = System.Drawing.Color.Transparent;

             this.btnCancel.BtnFont = new System.Drawing.Font("微软雅黑", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)()));

             this.btnCancel.BtnForeColor = System.Drawing.Color.FromArgb(((int)(((byte)()))), ((int)(((byte)()))), ((int)(((byte)()))));

             this.btnCancel.BtnText = "取消";

             this.btnCancel.ConerRadius = ;

             this.btnCancel.Cursor = System.Windows.Forms.Cursors.Hand;

             this.btnCancel.Dock = System.Windows.Forms.DockStyle.Fill;

             this.btnCancel.FillColor = System.Drawing.Color.White;

             this.btnCancel.Font = new System.Drawing.Font("微软雅黑", 15F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Pixel);

             this.btnCancel.IsRadius = false;

             this.btnCancel.IsShowRect = false;

             this.btnCancel.IsShowTips = false;

             this.btnCancel.Location = new System.Drawing.Point(, );

             this.btnCancel.Margin = new System.Windows.Forms.Padding();

             this.btnCancel.Name = "btnCancel";

             this.btnCancel.RectColor = System.Drawing.Color.FromArgb(((int)(((byte)()))), ((int)(((byte)()))), ((int)(((byte)()))));

             this.btnCancel.RectWidth = ;

             this.btnCancel.Size = new System.Drawing.Size(, );

             this.btnCancel.TabIndex = ;

             this.btnCancel.TabStop = false;

             this.btnCancel.TipsText = "";

             this.btnCancel.BtnClick += new System.EventHandler(this.btnCancel_BtnClick);

             //

             // ucSplitLine_V1

             //

             this.ucSplitLine_V1.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)()))), ((int)(((byte)()))), ((int)(((byte)()))));

             this.ucSplitLine_V1.Dock = System.Windows.Forms.DockStyle.Fill;

             this.ucSplitLine_V1.Location = new System.Drawing.Point(, );

             this.ucSplitLine_V1.Margin = new System.Windows.Forms.Padding(, , , );

             this.ucSplitLine_V1.Name = "ucSplitLine_V1";

             this.ucSplitLine_V1.Size = new System.Drawing.Size(, );

             this.ucSplitLine_V1.TabIndex = ;

             this.ucSplitLine_V1.TabStop = false;

             //

             // btnOK

             //

             this.btnOK.BackColor = System.Drawing.Color.Transparent;

             this.btnOK.BtnBackColor = System.Drawing.Color.Transparent;

             this.btnOK.BtnFont = new System.Drawing.Font("微软雅黑", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)()));

             this.btnOK.BtnForeColor = System.Drawing.Color.FromArgb(((int)(((byte)()))), ((int)(((byte)()))), ((int)(((byte)()))));

             this.btnOK.BtnText = "确定";

             this.btnOK.ConerRadius = ;

             this.btnOK.Cursor = System.Windows.Forms.Cursors.Hand;

             this.btnOK.Dock = System.Windows.Forms.DockStyle.Fill;

             this.btnOK.FillColor = System.Drawing.Color.White;

             this.btnOK.Font = new System.Drawing.Font("微软雅黑", 15F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Pixel);

             this.btnOK.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)()))), ((int)(((byte)()))), ((int)(((byte)()))));

             this.btnOK.IsRadius = false;

             this.btnOK.IsShowRect = false;

             this.btnOK.IsShowTips = false;

             this.btnOK.Location = new System.Drawing.Point(, );

             this.btnOK.Margin = new System.Windows.Forms.Padding();

             this.btnOK.Name = "btnOK";

             this.btnOK.RectColor = System.Drawing.Color.FromArgb(((int)(((byte)()))), ((int)(((byte)()))), ((int)(((byte)()))));

             this.btnOK.RectWidth = ;

             this.btnOK.Size = new System.Drawing.Size(, );

             this.btnOK.TabIndex = ;

             this.btnOK.TabStop = false;

             this.btnOK.TipsText = "";

             this.btnOK.BtnClick += new System.EventHandler(this.btnOK_BtnClick);

             //

             // lblMsg

             //

             this.lblMsg.BackColor = System.Drawing.Color.White;

             this.lblMsg.Dock = System.Windows.Forms.DockStyle.Fill;

             this.lblMsg.Font = new System.Drawing.Font("微软雅黑", 12F);

             this.lblMsg.Location = new System.Drawing.Point(, );

             this.lblMsg.Name = "lblMsg";

             this.lblMsg.Padding = new System.Windows.Forms.Padding();

             this.lblMsg.Size = new System.Drawing.Size(, );

             this.lblMsg.TabIndex = ;

             this.lblMsg.Text = "这是一个提示信息。";

             //

             // lblTitle

             //

             this.lblTitle.BackColor = System.Drawing.Color.Transparent;

             this.lblTitle.Dock = System.Windows.Forms.DockStyle.Top;

             this.lblTitle.Font = new System.Drawing.Font("微软雅黑", 17F);

             this.lblTitle.Location = new System.Drawing.Point(, );

             this.lblTitle.Name = "lblTitle";

             this.lblTitle.Size = new System.Drawing.Size(, );

             this.lblTitle.TabIndex = ;

             this.lblTitle.Text = "提示";

             this.lblTitle.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;

             //

             // ucSplitLine_H1

             //

             this.ucSplitLine_H1.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)()))), ((int)(((byte)()))), ((int)(((byte)()))));

             this.ucSplitLine_H1.Dock = System.Windows.Forms.DockStyle.Top;

             this.ucSplitLine_H1.Location = new System.Drawing.Point(, );

             this.ucSplitLine_H1.Name = "ucSplitLine_H1";

             this.ucSplitLine_H1.Size = new System.Drawing.Size(, );

             this.ucSplitLine_H1.TabIndex = ;

             this.ucSplitLine_H1.TabStop = false;

             //

             // ucSplitLine_H2

             //

             this.ucSplitLine_H2.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)()))), ((int)(((byte)()))), ((int)(((byte)()))));

             this.ucSplitLine_H2.Dock = System.Windows.Forms.DockStyle.Bottom;

             this.ucSplitLine_H2.Location = new System.Drawing.Point(, );

             this.ucSplitLine_H2.Name = "ucSplitLine_H2";

             this.ucSplitLine_H2.Size = new System.Drawing.Size(, );

             this.ucSplitLine_H2.TabIndex = ;

             this.ucSplitLine_H2.TabStop = false;

             //

             // FrmDialog

             //

             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.None;

             this.BackColor = System.Drawing.Color.White;

             this.ClientSize = new System.Drawing.Size(, );

             this.Controls.Add(this.ucSplitLine_H2);

             this.Controls.Add(this.ucSplitLine_H1);

             this.Controls.Add(this.btnClose);

             this.Controls.Add(this.panel1);

             this.Controls.Add(this.lblMsg);

             this.Controls.Add(this.lblTitle);

             this.Icon = ((System.Drawing.Icon)(resources.GetObject("$this.Icon")));

             this.IsFullSize = false;

             this.IsShowRegion = true;

             this.Name = "FrmDialog";

             this.Redraw = true;

             this.ShowIcon = false;

             this.ShowInTaskbar = false;

             this.Text = "FrmDialoag";

             this.VisibleChanged += new System.EventHandler(this.FrmDialog_VisibleChanged);

             this.panel1.ResumeLayout(false);

             this.tableLayoutPanel1.ResumeLayout(false);

             this.ResumeLayout(false);

         }

         #endregion

         private System.Windows.Forms.Label lblTitle;

         private Controls.UCBtnExt btnOK;

         private Controls.UCBtnExt btnCancel;

         private System.Windows.Forms.Label lblMsg;

         private System.Windows.Forms.Panel panel1;

         private Controls.UCSplitLine_V ucSplitLine_V1;

         private System.Windows.Forms.Panel btnClose;

         private System.Windows.Forms.TableLayoutPanel tableLayoutPanel1;

         private Controls.UCSplitLine_H ucSplitLine_H1;

         private Controls.UCSplitLine_H ucSplitLine_H2;

     }

 }

用处及效果

用处：一般用在一个需要用户确定的提示上

效果：

调用示例

  if (FrmDialog.ShowDialog(this, "是否再显示一个没有取消按钮的提示框？", "模式窗体测试", true) == System.Windows.Forms.DialogResult.OK)

             {

                 FrmDialog.ShowDialog(this, "这是一个没有取消按钮的提示框", "模式窗体测试");

             }

最后的话

如果你喜欢的话，请到 https://gitee.com/kwwwvagaa/net_winform_custom_control 点个星星吧

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（十八）c#Winform自定义控件-提示框

官网

前提

目录

准备工作

开始

用处及效果

最后的话

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