Skip to main content

C#: Get all selected items of CheckBoxList or ListBox in comma separated string

If you want to store selected value of a CheckBoxList or Listbox in comma separated string, then you are on right place. Sometime it is requirement that we want a comma separated string of selected value of CheckBoxList or Listbox control (I.e. to save your Control’s selected value in one String field of DB).
So here I am writing one small function which will take CheckBoxList or ListBox as parameter and return comma separated string of selected items.

 Note: Please include System.Text and System.Web.UI.WebControls namespaces for this sample code.

//for Listbox:provide ListBox control.
public string GetSelectedItems(CheckBoxList control)
{
    var items = new StringBuilder();
    foreach (ListItem item in control.Items)
    {
        if (item.Selected)
            items.Append(string.Format("{0},", item.Value));
    }
    //Remove last comma before returning back.
    return items.ToString().TrimEnd(',');
}

Use this function as:              
var selectedValues = GetSelectedItems(control); //control is name of Checkboxlist/ListBox

In my next post I will demonstrate how you can populate selected value for CheckBoxList or Listbox from comma separated string.
Labels:

Comments

  1. AnonymousJanuary 23, 2013 at 10:03 AM

    Thanks Sandeep.

    How to select the Checkboxlist with the DB string field

    Mathew

    ReplyDelete
  2. SandeepJanuary 23, 2013 at 12:32 PM

    Methew,

    I think you are asking how to select checkboxlist from a string that contains comma separated values, if so, you can check here: http://sandeep-tada.blogspot.in/2012/09/populate-selected-items-of.html

    ReplyDelete
  3. AnonymousApril 30, 2015 at 5:32 AM

    asshole ..why no copy and past !! you suck

    ReplyDelete

Post a Comment

Popular posts from this blog

C#: Merging Excel cells with NPOI HSSFWorkbook

In this post we’ll see how to merge the two or more cell with each other while creating the excel sheet using NPOI . Mentioned below is code to merge multiple cells, in this example we are merging first cell to fifth cell of first row (you can adjust row or cell range by passing particular parameters in CellRangeAddress). //Created new Workbook var hwb = new NPOI.HSSF.UserModel. HSSFWorkbook (); //Create worksheet with name. var sheet = hwb.CreateSheet( "new sheet" ); //Create row and cell. var row = sheet.CreateRow(0); var cell = row.CreateCell(0); ; //Set text inside cell cell.SetCellValue( "This is Merged cell" ); cell.CellStyle.WrapText = true ; //define cell range address // parameters: -> first row to last and first cell to last cell var cra = new NPOI.SS.Util. CellRangeAddress (0, 0, 0, 4); //Add merged region to sheet. sheet.AddMergedRegion(cra); Hope this solution helps you J
4 comments
Read more

Error 405 : ASP.NET Core Web API PUT and DELETE Methods not allowed

Recently, while working with .Net core API I came across the issue of “Error 405 — Methods not Allowed” After some research, I found out that both GET and POST requests working fine but neither PUT nor DELETE requests working. Another thing is that the PUT and DELETE request was also working fine on my local machine but failed when we host on our Azure server. When I explored the issue on the web it led me to the conclusion that WebDAVModule seems to set PUT and DELETE request methods disabled by default and due to that PUT and DELETE throw 405 errors. To make the PUT and DELETE requests work, we need to override the WebDAVModule setting in web.config file by adding the below settings under “ system.webServer ”. < system.webServer >   < modules runAllManagedModulesForAllRequests = " false " >     < remove name = " WebDAVModule " />   </ modules > </ system.webServer > There may be 2 web.config files in y...
Post a Comment
Read more

How to set Swagger as the default start page for API hosted on the Azure web app?

I created an Asp.Net Core 2.x Web API and configured Swagger on it, below is the code added in Configure method under Startup.cs file, for full swagger configuration, check here //Add swagger configuration app.UseSwagger(); app.UseSwaggerUI(c => {     c.SwaggerEndpoint( "../swagger/v1/swagger.json" , "Test API V1" ); }); On my local machine when I run the API it is automatically redirected to the Swagger page. However, when I hosted this API as an Azure web app it is not redirecting directly to the Swagger and to access the swagger, I had to append /swagger in the URL, for example, https://testapi.azurewebsites.net/swagger/ Solution: Set RoutePrefix to string.Empty under app.UseSwaggerUI like below: app.UseSwaggerUI(c => {     c.SwaggerEndpoint( "../swagger/v1/swagger.json" , "Test API V1" );      c.RoutePrefix = string .Empty; // Set Swagger UI at apps root }); And that’s it, now when you b...
Post a Comment
Read more