![]() ![]() Mark was honored to be named a Microsoft MVP for application development with C# for the second year in a row. He specializes in architecture, design, and development of Microsoft-based solutions. Mark is a technology leader with Crowe Chizek in Indianapolis, Indiana. It is a component rather than a control, so when you put it on your form it will sit in the component tray below. NET applications for large and mid-sized organizations. This little Gem is often left unnoticed, which is a funny thing considering it sits in the Windows Forms Controls Toolbox by default. Mark Strawmyer (MCSD, MCSE, MCDBA) is a senior architect of. If you have something in particular that you would like to see explained here, you could reach me at About the Author The topic of the next column is yet to be determined. SQL Server 2005 Reporting Services in Action.Extending Windows Forms with a Custom Validation Component Library.Practical Tips for Boosting the Performance of Windows Forms Apps.Here are a few links to additional resources that may interest you: Hopefully, these tips for working with Windows Forms-based applications aren’t run-of-the-mill for you, and they will help you in your Windows Forms development efforts. ReportDataSource(“Sales”, GetData())) byte bytes = (“Excel”, deviceInfo, out mimeType, out encoding, out fileNameExtension, out streams, out warnings) System.IO.FileStream fileStream = new System.IO.FileMode.Create) fileStream.Write(bytes, 0, bytes.Length) fileStream.Close() Knowledge Is Power Here’s an example: listView1.BeginUpdate() for(int i = 0 i True ” localReport = new () localReport.ReportPath = Report Store Information.rdlc” = false (new. The BeginUpdate and EndUpdate methods allow bulk operations to occur without causing excessive repainting. Loading items into controls such as ListView and TreeView causes a repainting after each change. ![]() To prevent your control from being populated multiple times, a good practice is to always set the DataSource property last on controls such as ComboBox and ListBox, as follows: comboBox1.ValueMember = “Name” comboBox1.DisplayMember = “Name” comboBox1.DataSource = test Control Data Population This means your controls may inadvertently populate multiple times. ErrorProvider presents a simple mechanism for indicating to the end user that a control on a form has an error associated with it. When you change the ValueMember property on controls programmatically, it causes most controls to repopulate the data from the configured DataSource. Data Binding Optimizationĭata binding allows data to be processed automatically and displayed in controls such as ComboBox on the user interface (UI). You’ll need to have some level of familiarity with topics such as data binding and validation to follow along. Rather than focusing on a specific feature, it covers a variety of topics that will assist you in building fully functional and well performing Windows Forms applications. ![]()
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