选中CheckBox时如何获取GridView中HiddenField的值？

Question

I have a GridView which has multiple rows, on each row I have a CheckBox and a HiddenField. On button click I want to check if the CheckBox is checked and if it is I want to take the value of the HiddenField for that row. Each HiddenField on each row has a different value. User could check multiple CheckBoxes so I need to be able to pull the value of each HiddenField.

Any help will be really appreciate it.

Thank you

Answer 1

Loop through each row in the grid, check if the checkbox is checked and if it is, grab the value of the hidden field.

foreach (GridViewRow row in grdView.Rows)
{
    if((row.FindControl("chkBoxId") as CheckBox).Checked)
    {
        string hiddenFieldValue = (row.FindControl("hiddenFieldId") as HiddenField).Value;
    }
}

Where chkBoxId is the ID property of your checkbox on the page and hiddenFieldId is the ID of the hiddenfield control on your page.

Answer 2

Possible duplicates.

How to get values of CheckBoxes inside a gridview that are checked using asp .net

Get the id of selected checkboxes in gridview (Asp.net) c#

How to get the value in the gridview which the checkbox is checked?

One of the answer in above links :

foreach(Gridviewrow gvr in Gridview1.Rows)
{
 if(((CheckBox)gvr.findcontrol("CheckBox1")).Checked == true)
 {

   //Get hidden field value here.
 }
}

Answer 3

You can use a code like this:

protected void BtnMybutton_click( Object sender, EventArgs e)
{
    Button Mybutton = (Button) sender;
    GridViewRow row = (GridViewRow) MyButton.NamingContainer;
    CheckBox ChkTest = (CheckBox) row.FindControl("ChkTest");
    HidenFiekd HdfValue = (HidenField) row.FindControl("HdfValue");
    if(ChkTest.Checked)
    {
        Console.WriteLine(HdfValues.Value);
    }
}