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C# IFileDialog.ShowDialog方法代码示例

本文整理汇总了C#中IFileDialog.ShowDialog方法的典型用法代码示例。如果您正苦于以下问题:C# IFileDialog.ShowDialog方法的具体用法?C# IFileDialog.ShowDialog怎么用?C# IFileDialog.ShowDialog使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在IFileDialog的用法示例。


在下文中一共展示了IFileDialog.ShowDialog方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: ShowFileDialog

        /// <summary>
        /// Shows an OpenFileDialog or SaveFileDialog and populates the InitialDirectory from the global
        /// settings repository if possible.
        /// </summary>
        /// <param name="fd">The FileDialog to show.</param>
        /// <remarks>
        /// The FileDialog should already have its InitialDirectory populated as a suggestion of where to start.
        /// </remarks>
        public static DialogResult ShowFileDialog(Control owner, IFileDialog fd)
        {
            string initialDirectory = Settings.CurrentUser.GetString(SettingNames.LastFileDialogDirectory, fd.InitialDirectory);

            // TODO: spawn this in a background thread, if it doesn't respond within ~500ms?, assume the dir doesn't exist
            bool dirExists = false;

            try 
            {
                DirectoryInfo dirInfo = new DirectoryInfo(initialDirectory);

                using (new WaitCursorChanger(owner))
                {
                    dirExists = dirInfo.Exists;

                    if (!dirInfo.Exists)
                    {
                        initialDirectory = fd.InitialDirectory;
                    }
                }
            }

            catch (Exception)
            {
                initialDirectory = fd.InitialDirectory;
            }

            fd.InitialDirectory = initialDirectory;

            OurFileDialogUICallbacks ouc = new OurFileDialogUICallbacks();
            DialogResult result = fd.ShowDialog(owner, ouc);

            if (result == DialogResult.OK)
            {
                string fileName;
                
                if (fd is IFileOpenDialog)
                {
                    string[] fileNames = ((IFileOpenDialog)fd).FileNames;

                    if (fileNames.Length > 0)
                    {
                        fileName = fileNames[0];
                    }
                    else
                    {
                        fileName = null;
                    }
                }
                else if (fd is IFileSaveDialog)
                {
                    fileName = ((IFileSaveDialog)fd).FileName;
                }
                else
                {
                    throw new InvalidOperationException();
                }

                if (fileName != null)
                {
                    string newDir = Path.GetDirectoryName(fileName);
                    Settings.CurrentUser.SetString(SettingNames.LastFileDialogDirectory, newDir);
                }
                else
                {
                    throw new FileNotFoundException();
                }
            }

            return result;
        }
开发者ID:herbqiao,项目名称:paint.net,代码行数:79,代码来源:DocumentWorkspace.cs


注:本文中的IFileDialog.ShowDialog方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。