TemplateItem

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C#

ASP.NET

Hi All,

I have written a class "CheckBoxTemplate" that implements ITemplate interface.

At runtime, using this class I add a column to the gridview.

Now I have "next" link and i have implemented the click eventhandler. In the eventhandler i iterate each row but I don't know how to get the "Checked" property of the CheckBoxTemplate.

Please help me in this regard. I have already wasted two days on this thing, and it is now frustrating me alot :(

Yeah I am using ASP.NET. Sorry for confusion.
would post the code that will be more helpful

Here is my CheckBoxTemplate class:

Yeah I am using ASP.NET. Sorry for confusion.
would post the code that will be more helpful

Here is my CheckBoxTemplate class:

public class CheckBoxTemplate: ITemplate
{
    private string id;
    CheckBox box;
    public bool Checked
    {
        get { return box.Checked; }
        set { box.Checked = value; }
    }
    public string ID
    {
        get { return id; }
        set { id = value; }
    }
    /// <summary>
    /// The CheckBoxItem constructor
    /// </summary>
    /// <param name="editable">true if the item is to be in its editable state, false for the item to be disabled.</param>
    public CheckBoxTemplate(bool editable)
    {
        readOnly = (editable == true) ? false : true;
    }
    /// <summary>
    /// Instantiates the CheckBox that we wish to represent in this column.
    /// </summary>
    /// <param name="container">The container into which the control or controls are added.</param>
    void ITemplate.InstantiateIn(Control container)
    {
        box = new CheckBox();
        box.ID = id;
        box.DataBinding += new EventHandler(this.BindData);
        box.AutoPostBack = autoPostBack;
        box.CheckedChanged += new EventHandler(this.OnCheckChanged);
        container.Controls.Add(box);
    }
    /// <summary>
    /// Our CheckChanged event
    /// </summary>
    public event EventHandler CheckedChanged;
    /// <summary>
    /// This is a common handler for all the Checkboxes.
    /// </summary>
    /// <param name="sender">The raiser of this event a CheckBox.</param>
    /// <param name="e">A System.EventArgs that contains the event data.</param>
    private void OnCheckChanged(object sender, EventArgs e)
    {
        if (CheckedChanged != null)
        {
            CheckedChanged(sender, e);
        }
    }
    /// <summary>
    /// The internal storage for which DataField we are going to represent.
    /// </summary>
    private string dataField;
    /// <summary>
    /// Used to set the DataField that we wish to represent with this CheckBox.
    /// </summary>
    public string DataField
    {
        get
        {
            return dataField;
        }
        set
        {
            dataField = value;
        }
    }
    /// <summary>
    /// The internal storage for the AutoPostback flag.
    /// </summary>
    private bool autoPostBack = false;
    /// <summary>
    /// Set the AutoPostBack flag. If this is true then each time a CheckBox is clicked
    /// in the Column that contains this item then an event is raised on the server.
    /// </summary>
    public bool AutoPostBack
    {
        set
        {
            autoPostBack = value;
        }
        get
        {
            return autoPostBack;
        }
    }
    /// <summary>
    /// Handler for the DataBinding event where we bind the data for a specific row
    /// to the CheckBox.
    /// </summary>
    /// <param name="sender">The raiser of the event.</param>
    /// <param name="e">A System.EventArgs that contains the event data.</param>
    private void BindData(object sender, EventArgs e)
    {
        CheckBox box = (CheckBox)sender;
        GridViewRow container = (GridViewRow)box.NamingContainer;
        box.Checked = false;
        box.Enabled = (readOnly == true) ? false : true;
        string data = ((DataRowView)container.DataItem)[dataField].ToString();
        Type t = ((DataRowView)container.DataItem).DataView.Table.Columns[dataField].DataType;
        if (data.Length > 0)
        {
            switch (t.ToString())
            {
                case "System.Boolean":
                    if ((data == "True") || (data == "true"))
                    {
                        box.Checked = true;
                    }
                    break;
                default:
                    break;
            }
        }
    }
    /// <summary>
    /// Internal storage for the readOnly flag.
    /// </summary>
    private bool readOnly = true;
}

And this is how I am adding it to the gridview <TemplateField>:

private void ResetGridView()
    {
        BoundField rn = new BoundField();
        rn.DataField = "ResultNumber";
        rn.HeaderText = "Result Number";

        BoundField ac = new BoundField();
        ac.DataField = "AccountNumber";
        ac.HeaderText = "Account Number";

        BoundField cc = new BoundField();
        cc.DataField = "CardNumber";
        cc.HeaderText = "Credit Card";

        CommandField cf = new CommandField();

        cf.ItemStyle.VerticalAlign = VerticalAlign.Middle;
        cf.ItemStyle.HorizontalAlign = HorizontalAlign.Left;
        cf.ShowHeader = true;
        cf.HeaderText = "Actions";
        cf.SelectText = "Print";
        cf.DeleteText = "Email";

        cf.ShowDeleteButton = false;
        cf.ShowSelectButton = false;
        cf.ShowCancelButton = false;
        cf.ShowEditButton = false;

        BoundField ri = new BoundField();  //result index
        ri.DataField = "ResultIndex";
        ri.HeaderText = "Result Index";

        gvBoResults.Columns.Clear();

        TemplateField cbf = new TemplateField();
        CheckBoxTemplate t = new CheckBoxTemplate(true);
        t.ID = "myCheckBox";
        t.DataField = "select";
        cbf.ItemTemplate = t;
        gvBoResults.Columns.Add(cbf);

        gvBoResults.Columns.Add(rn);

        if (SearchType == SearchType.CreditCard)
            gvBoResults.Columns.Add(cc);
        else
            gvBoResults.Columns.Add(ac);

        gvBoResults.Columns.Add(cf);
        gvBoResults.Columns.Add(ri);
        
    }

And the problematic part:

private void GetCheckedRows()
    {
        foreach (GridViewRow r in gvBoResults.Rows)
        {
             //I want to get the value of check box :(
        }

    }