In this sample, I have added an Excel workbook to the project. The following is a sample XML to fill in drop down values in Excel. You can create a blank workbook and add it to your project. You can create a XML to fill the DropDown values in Excel. In my example, I dragged a label and a button as shown in the following screen shot.Īfter adding controls to the form, add XML and Excel files in the project. Once your project is created, you can drag controls from the toolbox. Create a new project in Visual Studio 2010/2012/2013Ĭreate a new project in Visual Studio 2010/2012/2013 and select Windows Forms application as shown in the following screen shot. In this article, I have created a DropDown list using data validation.ġ. Let’s start by adding the DropDown in Excel using C# code with the following example. You will see a DropDown in Excel as shown in following screen shot. After adding validation click on the "Ok" button.Select “List” from the Validation criteria and enter values into the source with comma-separated values as shown in the following screen shot then click the "Ok" button. Select the Settings tab from Data Validation. Select the Data Tab in Excel 2010 and click the Data Validation command as shown in following screen shot.Create a blank Excel workbook and select the A1 cell in the top of the Excel workbook.How to add Data Validation in Excel without C# code For example, if you do not want to enter any data in Excel by the user then you can restrict data entry to values in a DropDown list. Use data validation in Excel to ensure that users enter certain values into a cell.ĭata validation is invaluable when you want to share a workbook with others in your organization and you want the data entered in the workbook to be accurate and consistent. For example, you may want to restrict the data entry to a certain range of dates, limit choices using a list, or ensure that only positive whole numbers are entered. You use data validation to control the type of data or the values that users enter into a cell. You might not get much code or help in the internet on this. The DropDown list is filled in with XML using data validation.įilling in a DropDown list in Excel is not a frequent requirement in our software development. It demonstrates how to apply data validation in Excel with C#. In this tutorial, we explained with an example how to add color to a drop-down list using Conditional Formatting by creating and managing conditional formatting rules.This article demonstrates how to create and fill in a drop-down list in Excel using C#. Once you've set the colors for the values, you can choose any value from the drop-down menu and the cell will automatically change to the colour you chose. Now, click Conditional Formatting, then click Manage Rules, select the cell range to Apply the Conditional Formatting. Then, click the doc button 1 button to choose the value you want to format with a certain color, see screenshot.Īnd then click the Fill tab, choose a colour you like.Īnd then click OK to close the dialogs, repeat steps 1 to 4 for each other drop down selection. Under the Format only cells with section, choose Specific Text from the first drop-down list and containing from the second drop-down list. Then you can see the New Formatting Rule dialog box, click the Format only cells that contain option under the Select a Rule Type section. Mark your drop-down cells, which in this case are in column A, and go to Home > Conditional Formatting then select New Rule. A Color-coded Drop-Down List with Conditional Formatting Now, we can add a color to the drop-down list. Now, we can see the Drop-Down list below. Now select the Source option and click OK. To see a screenshot, select Data > Data Validation > Data Validation.Īdditionally, in the Data Validation dialogue box, click the Settings tab and select List from the Allow drop down list. In this scenario, I positioned the drop-down list in the range A2:A6, as shown in the screenshot − Make a list of data and choose a range into which to place the drop-down list values. Let’s understand step by step with an example. Learn how to provide visual clues by adding a new list and validation control, followed by conditional format rules.įor example, I have created a drop-down list of city names when I select Hyderabad, I want the cell to be colored Yellow automatically, and when I select Chicago, I want the cell to be colored Blue, as shown in the screenshot below. We can add conditional formatting rules to the cell containing the drop-down list. Color can be a powerful element in an Excel drop down list, and it's easier to incorporate than you may think.
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