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怎么在Winform中對(duì)圖片的格式進(jìn)行轉(zhuǎn)換？相信很多沒(méi)有經(jīng)驗(yàn)的人對(duì)此束手無(wú)策，為此本文總結(jié)了問(wèn)題出現(xiàn)的原因和解決方法，通過(guò)這篇文章希望你能解決這個(gè)問(wèn)題。
private void toolStripButton3_Click(object sender, EventArgs e)//選擇轉(zhuǎn)換文件的按鈕
{
if (openFileDialog1.ShowDialog() == DialogResult.OK) //判斷是否選擇文件
{
listView1.Items.Clear(); //清空l(shuí)istView1
string[] info = new string[7]; //存儲(chǔ)每一行數(shù)據(jù)
FileInfo fi; //創(chuàng)建一個(gè)FileInfo對(duì)象，用于獲取圖片信息
path2 = openFileDialog1.FileNames; //獲取選擇的圖片集合
for (int i = 0; i < path2.Length; i++) //讀取集合中的內(nèi)容
{
//獲取圖片名稱
string ImgName = path2[i].Substring(path2[i].LastIndexOf("\\") + 1, path2[i].Length - path2[i].LastIndexOf("\\") - 1);
//獲取圖片類型
string ImgType = ImgName.Substring(ImgName.LastIndexOf(".") + 1, ImgName.Length - ImgName.LastIndexOf(".") - 1);
fi = new FileInfo(path2[i].ToString()); //實(shí)例化FileInfo對(duì)象
//將每一行數(shù)據(jù)第一個(gè)位置的圖標(biāo)添加到imageList1中
imageList1.Images.Add(ImgName,Properties.Resources.圖標(biāo)__23_);
info[1] = ImgName; //圖片名稱
info[2] = ImgType; //圖片類型
info[3] = fi.LastWriteTime.ToShortDateString();//圖片最后修改日期
info[4] = path2[i].ToString(); //圖片位置
info[5] = (fi.Length/1024)+"KB"; //圖片大小
info[6] = "未轉(zhuǎn)換"; //圖片狀態(tài)
ListViewItem lvi = new ListViewItem(info, ImgName); //實(shí)例化ListViewItem對(duì)象
listView1.Items.Add(lvi); //將信息添加到listView1控件中
}
tsslFileNum.Text = "當(dāng)前共有" + path2.Length.ToString() + "個(gè)文件";//狀態(tài)欄中顯示圖片數(shù)量
}
}選擇圖片保存位置按鈕點(diǎn)擊事件
private void toolStripButton4_Click(object sender, EventArgs e)//選擇保存路徑按鈕
{
if (folderBrowserDialog1.ShowDialog() == DialogResult.OK) //判斷是否選擇保存路徑
{
path3 = folderBrowserDialog1.SelectedPath; //獲取保存路徑
}
}開(kāi)始轉(zhuǎn)換按鈕點(diǎn)擊事件
private void toolStripButton1_Click(object sender, EventArgs e)
{
if (path2 == null) //判斷是否選擇圖片
{
MessageBox.Show("請(qǐng)選擇圖片！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else
{
if (path3.Length == 0) //判斷是否選擇保存位置
{
MessageBox.Show("請(qǐng)選擇保存位置！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else
{
flags = 1; //初始化flags變量為1，用于計(jì)算進(jìn)度
toolStrip1.Enabled = false; //當(dāng)轉(zhuǎn)換開(kāi)始時(shí)，禁用工具欄
int flag = tscbType.SelectedIndex; //判斷將圖片轉(zhuǎn)換為何種格式
switch (flag) //根據(jù)不同的格式進(jìn)行轉(zhuǎn)換
{
case 0:
Imgtype1 = 0; //如果選擇第一項(xiàng)則轉(zhuǎn)換為BMP格式
td = new Thread(new ThreadStart(ConvertImage)); //通過(guò)線程調(diào)用ConvertImage方法進(jìn)行轉(zhuǎn)換
td.Start();
break;
case 1: //如果選擇第二項(xiàng)則轉(zhuǎn)換為JPG格式
Imgtype1 = 1;
td = new Thread(new ThreadStart(ConvertImage));//通過(guò)線程調(diào)用ConvertImage方法進(jìn)行轉(zhuǎn)換
td.Start();
break;
case 2: //如果選擇第三項(xiàng)則轉(zhuǎn)換為PNG格式
Imgtype1 = 2;
td = new Thread(new ThreadStart(ConvertImage));//通過(guò)線程調(diào)用ConvertImage方法進(jìn)行轉(zhuǎn)換
td.Start();
break;
case 3: //如果選擇第四項(xiàng)則轉(zhuǎn)換為GIF格式
Imgtype1 = 3;
td = new Thread(new ThreadStart(ConvertImage));//通過(guò)線程調(diào)用ConvertImage方法進(jìn)行轉(zhuǎn)換
td.Start();
break;
default: td.Abort(); break;
}
}
}
}完整窗體頁(yè)面代碼
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;
using System.IO;
using System.Threading;
namespace PictureBatchConversion
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
string[] path2=null; //用于存儲(chǔ)選擇的文件列表
string path3=""; //用于存儲(chǔ)保存的路徑
Bitmap bt; //聲明一個(gè)轉(zhuǎn)換圖片格式的Bitmap對(duì)象
Thread td; //聲明一個(gè)線程
int Imgtype1; //聲明一個(gè)變量用于標(biāo)記ConvertImage方法中轉(zhuǎn)換的類型
string OlePath; //聲明一個(gè)變量用于存儲(chǔ)ConvertImage方法中原始圖片的路徑
string path; //聲明一個(gè)變量用于存儲(chǔ)ConvertImage方法中轉(zhuǎn)換后圖片的保存路徑
int flags; //用于標(biāo)記已轉(zhuǎn)換圖片的數(shù)量，用于計(jì)算轉(zhuǎn)換進(jìn)度
private void Form2_Load(object sender, EventArgs e)
{
tscbType.SelectedIndex = 0; //設(shè)置第一個(gè)轉(zhuǎn)換類型被選中
CheckForIllegalCrossThreadCalls = false;//屏蔽線程彈出的錯(cuò)誤提示
}
private void toolStripButton3_Click(object sender, EventArgs e)//選擇轉(zhuǎn)換文件的按鈕
{
if (openFileDialog1.ShowDialog() == DialogResult.OK) //判斷是否選擇文件
{
listView1.Items.Clear(); //清空l(shuí)istView1
string[] info = new string[7]; //存儲(chǔ)每一行數(shù)據(jù)
FileInfo fi; //創(chuàng)建一個(gè)FileInfo對(duì)象，用于獲取圖片信息
path2 = openFileDialog1.FileNames; //獲取選擇的圖片集合
for (int i = 0; i < path2.Length; i++) //讀取集合中的內(nèi)容
{
//獲取圖片名稱
string ImgName = path2[i].Substring(path2[i].LastIndexOf("\\") + 1, path2[i].Length - path2[i].LastIndexOf("\\") - 1);
//獲取圖片類型
string ImgType = ImgName.Substring(ImgName.LastIndexOf(".") + 1, ImgName.Length - ImgName.LastIndexOf(".") - 1);
fi = new FileInfo(path2[i].ToString()); //實(shí)例化FileInfo對(duì)象
//將每一行數(shù)據(jù)第一個(gè)位置的圖標(biāo)添加到imageList1中
imageList1.Images.Add(ImgName,Properties.Resources.圖標(biāo)__23_);
info[1] = ImgName; //圖片名稱
info[2] = ImgType; //圖片類型
info[3] = fi.LastWriteTime.ToShortDateString();//圖片最后修改日期
info[4] = path2[i].ToString(); //圖片位置
info[5] = (fi.Length/1024)+"KB"; //圖片大小
info[6] = "未轉(zhuǎn)換"; //圖片狀態(tài)
ListViewItem lvi = new ListViewItem(info, ImgName); //實(shí)例化ListViewItem對(duì)象
listView1.Items.Add(lvi); //將信息添加到listView1控件中
}
tsslFileNum.Text = "當(dāng)前共有" + path2.Length.ToString() + "個(gè)文件";//狀態(tài)欄中顯示圖片數(shù)量
}
}
private void toolStripButton2_Click(object sender, EventArgs e) //關(guān)閉按鈕
{
Application.Exit(); //退出系統(tǒng)
}
private void toolStripButton5_Click(object sender, EventArgs e) //清空列表的按鈕
{
listView1.Items.Clear(); //清空列表
path2 = null; //清空?qǐng)D片的集合
tsslFileNum.Text = "當(dāng)前沒(méi)有文件"; //狀態(tài)欄中提示
tsslPlan.Text = ""; //清空進(jìn)度數(shù)字
}
private void toolStripButton1_Click(object sender, EventArgs e)
{
if (path2 == null) //判斷是否選擇圖片
{
MessageBox.Show("請(qǐng)選擇圖片！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else
{
if (path3.Length == 0) //判斷是否選擇保存位置
{
MessageBox.Show("請(qǐng)選擇保存位置！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else
{
flags = 1; //初始化flags變量為1，用于計(jì)算進(jìn)度
toolStrip1.Enabled = false; //當(dāng)轉(zhuǎn)換開(kāi)始時(shí)，禁用工具欄
int flag = tscbType.SelectedIndex; //判斷將圖片轉(zhuǎn)換為何種格式
switch (flag) //根據(jù)不同的格式進(jìn)行轉(zhuǎn)換
{
case 0:
Imgtype1 = 0; //如果選擇第一項(xiàng)則轉(zhuǎn)換為BMP格式
td = new Thread(new ThreadStart(ConvertImage)); //通過(guò)線程調(diào)用ConvertImage方法進(jìn)行轉(zhuǎn)換
td.Start();
break;
case 1: //如果選擇第二項(xiàng)則轉(zhuǎn)換為JPG格式
Imgtype1 = 1;
td = new Thread(new ThreadStart(ConvertImage));//通過(guò)線程調(diào)用ConvertImage方法進(jìn)行轉(zhuǎn)換
td.Start();
break;
case 2: //如果選擇第三項(xiàng)則轉(zhuǎn)換為PNG格式
Imgtype1 = 2;
td = new Thread(new ThreadStart(ConvertImage));//通過(guò)線程調(diào)用ConvertImage方法進(jìn)行轉(zhuǎn)換
td.Start();
break;
case 3: //如果選擇第四項(xiàng)則轉(zhuǎn)換為GIF格式
Imgtype1 = 3;
td = new Thread(new ThreadStart(ConvertImage));//通過(guò)線程調(diào)用ConvertImage方法進(jìn)行轉(zhuǎn)換
td.Start();
break;
default: td.Abort(); break;
}
}
}
}
private void toolStripButton4_Click(object sender, EventArgs e)//選擇保存路徑按鈕
{
if (folderBrowserDialog1.ShowDialog() == DialogResult.OK) //判斷是否選擇保存路徑
{
path3 = folderBrowserDialog1.SelectedPath; //獲取保存路徑
}
}
private void ConvertImage()
{
flags = 1;
switch (Imgtype1)
{
case 0:
for (int i = 0; i < path2.Length; i++)
{
string ImgName = path2[i].Substring(path2[i].LastIndexOf("\\") + 1, path2[i].Length - path2[i].LastIndexOf("\\") - 1);
ImgName = ImgName.Remove(ImgName.LastIndexOf("."));
OlePath = path2[i].ToString();
bt = new Bitmap(OlePath);
path = path3 + "\\" + ImgName + ".bmp";
bt.Save(path, System.Drawing.Imaging.ImageFormat.Bmp);
listView1.Items[flags - 1].SubItems[6].Text = "已轉(zhuǎn)換";
tsslPlan.Text = "正在轉(zhuǎn)換"+flags*100/path2.Length+"%";
if (flags == path2.Length)
{
toolStrip1.Enabled = true;
tsslPlan.Text = "圖片轉(zhuǎn)換全部完成";
}
flags++;
}
break;
case 1:
for (int i = 0; i < path2.Length; i++)
{
string ImgName = path2[i].Substring(path2[i].LastIndexOf("\\") + 1, path2[i].Length - path2[i].LastIndexOf("\\") - 1);
ImgName = ImgName.Remove(ImgName.LastIndexOf("."));
OlePath = path2[i].ToString();
bt = new Bitmap(OlePath);
path = path3 + "\\" + ImgName + ".jpeg";
bt.Save(path, System.Drawing.Imaging.ImageFormat.Jpeg);
listView1.Items[flags - 1].SubItems[6].Text = "已轉(zhuǎn)換";
tsslPlan.Text = "正在轉(zhuǎn)換" + flags * 100 / path2.Length + "%";
if (flags == path2.Length)
{
toolStrip1.Enabled = true;
tsslPlan.Text = "圖片轉(zhuǎn)換全部完成";
}
flags++;
}
break;
case 2:
for (int i = 0; i < path2.Length; i++)
{
string ImgName = path2[i].Substring(path2[i].LastIndexOf("\\") + 1, path2[i].Length - path2[i].LastIndexOf("\\") - 1);
ImgName = ImgName.Remove(ImgName.LastIndexOf("."));
OlePath = path2[i].ToString();
bt = new Bitmap(OlePath);
path = path3 + "\\" + ImgName + ".png";
bt.Save(path, System.Drawing.Imaging.ImageFormat.Png);
listView1.Items[flags - 1].SubItems[6].Text = "已轉(zhuǎn)換";
tsslPlan.Text = "正在轉(zhuǎn)換" + flags * 100 / path2.Length + "%";
if (flags == path2.Length)
{
toolStrip1.Enabled = true;
tsslPlan.Text = "圖片轉(zhuǎn)換全部完成";
}
flags++;
}
break;
case 3:
for (int i = 0; i < path2.Length; i++)
{
string ImgName = path2[i].Substring(path2[i].LastIndexOf("\\") + 1, path2[i].Length - path2[i].LastIndexOf("\\") - 1);
ImgName = ImgName.Remove(ImgName.LastIndexOf("."));
OlePath = path2[i].ToString();
bt = new Bitmap(OlePath);
path = path3 + "\\" + ImgName + ".gif";
bt.Save(path, System.Drawing.Imaging.ImageFormat.Gif);
listView1.Items[flags - 1].SubItems[6].Text = "已轉(zhuǎn)換";
tsslPlan.Text = "正在轉(zhuǎn)換" + flags * 100 / path2.Length + "%";
if (flags == path2.Length)
{
toolStrip1.Enabled = true;
tsslPlan.Text = "圖片轉(zhuǎn)換全部完成";
}
flags++;
}
break;
default: bt.Dispose(); break;
}
}
private void Form2_FormClosed(object sender, FormClosedEventArgs e)//關(guān)閉窗口時(shí)要關(guān)閉線程
{
if (td != null) //判斷是否存在線程
{
if (td.ThreadState == ThreadState.Running) //然后判斷線程是否正在運(yùn)行
{
td.Abort(); //如果運(yùn)行則關(guān)閉線程
}
}
}
}
}看完上述內(nèi)容，你們掌握怎么在Winform中對(duì)圖片的格式進(jìn)行轉(zhuǎn)換的方法了嗎？如果還想學(xué)到更多技能或想了解更多相關(guān)內(nèi)容，歡迎關(guān)注億速云行業(yè)資訊頻道，感謝各位的閱讀！
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