Programmatically Check an Item in Checkboxlist where text is equal to what I want

Question

In C   I am trying to Check an item in a CheckBoxList where the text equals what I require  I would modify the code to check items that exist in the database  If you would like an example  I need to select the checklistbox item that equals to abc

User · Accepted Answer

Assuming that the items in your CheckedListBox are strings:

  for (int i = 0; i < checkedListBox1.Items.Count; i++)
  {
    if ((string)checkedListBox1.Items[i] == value)
    {
      checkedListBox1.SetItemChecked(i, true);
    }
  }

Or

  int index = checkedListBox1.Items.IndexOf(value);

  if (index >= 0)
  {
    checkedListBox1.SetItemChecked(index, true);
  }

User · Answer

Example based on ASP NET CheckBoxList   lt asp CheckBoxList ID  checkBoxList1  runat  server  gt       lt asp ListItem gt abc lt  asp ListItem gt       lt asp ListItem gt def lt  asp ListItem gt   lt  asp CheckBoxList gt    private void SelectCheckBoxList string valueToSelect        ListItem listItem   this checkBoxList1 Items FindByText valueToSelect        if listItem    null  listItem Selected   true     protected void Page Load object sender  EventArgs e        SelectCheckBoxList  abc

User · Answer

Multiple selection             private void clbsec CheckedListBox clb  string text                            for  int i   0  i  lt  clb Items Count  i                                      if text    clb Items i  ToString                                              clb SetItemChecked i  true                                                     using      clbsec checkedListBox1  michael     or   clbsec checkedListBox1 textBox1 Text    or  clbsec checkedListBox1 dataGridView1 CurrentCell Value toString

User · Answer

All Credit to  Jim Scott -- just added one touch   ASP NET 4 5  amp  C    Refractoring this a little more    if you pass the CheckBoxList as an object to the method  you can reuse it for any CheckBoxList  Also you can use either the Text or the Value    private void SelectCheckBoxList string valueToSelect  CheckBoxList lst        ListItem listItem   lst Items FindByValue valueToSelect         ListItem listItem   lst Items FindByText valueToSelect       if  listItem    null  listItem Selected   true       How to call it -- in this case from a SQLDataReader and  chkRP  is my CheckBoxList   SelectCheckBoxList dr  kRPId   ToString    chkRP

User · Answer

I tried adding dynamically created ListItem and assigning the selected value    foreach var item in yourListFromDB     ListItem listItem   new ListItem     listItem Text   item name   listItem Value   Convert ToString item value    listItem Selected item isSelected                     checkedListBox1 Items Add listItem     checkedListBox1 DataBind      avoid using binding the DataSource as it will not bind the checked unchecked from DB

[c#] Programmatically Check an Item in Checkboxlist where text is equal to what I want

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