[Solved] Multi Select, ItemCommand issue

[Seth]

I've got a Grid I am customizing and adding to a place holder control on a page. It seems as though setting AllowMultiRowSelection to true is causing the grid events to not fire. When I comment out the RadGrid1.AllowMultiRowSelection = true; line my ItemCommand event fires properly.

Any thoughts?

        protected void Page_Load(object sender, EventArgs e)
        {
            RadGrid1 = new RadGrid();

            RadGrid1.AutoGenerateColumns = true;
            RadGrid1.ItemCommand += new GridCommandEventHandler(LVRadGridView_ItemCommand);
            RadGrid1.AllowMultiRowSelection = true;
            RadGrid1.PagerStyle.Mode = GridPagerMode.NextPrevAndNumeric;
            RadGrid1.ClientSettings.Selecting.AllowRowSelect = true;

            RadGrid1.MasterTableView.CommandItemDisplay = GridCommandItemDisplay.Top;
            RadGrid1.MasterTableView.AutoGenerateColumns = true;
            RadGrid1.MasterTableView.ClientDataKeyNames = new string[] { "ID" };
            RadGrid1.MasterTableView.CommandItemTemplate = new FolderViewerCommandItemTemplate();

            GridClientSelectColumn checkBoxColumn = new GridClientSelectColumn();
            RadGrid1.Columns.Add(checkBoxColumn);

            BindGrid();
            PlaceHolder1.Controls.Add(RadGrid1);
        }

        public void BindGrid()
        {
            DataTable tab = new DataTable();
            tab.Columns.Add("ID");
            tab.Columns.Add("Color");

            tab.Rows.Add(1, "Red");
            tab.Rows.Add(2, "Orange");
            tab.Rows.Add(3, "Yellow");
            tab.Rows.Add(4, "Green");
            tab.Rows.Add(5, "Blue");

            tab.AcceptChanges();

            RadGrid1.DataSource = tab;
            RadGrid1.DataBind();
        }
        void LVRadGridView_ItemCommand(object source, GridCommandEventArgs e)
        {
        ...
        }

[Ves]

Hi Seth,

The issue is actually in the grid programmatic creation and in databinding the grid on each postback. Please, check the following help articles:

• Programmatic creation
• Advanced databinding

Here is an example:

RadGrid RadGrid1;
    protected void Page_Init(object sender, EventArgs e)
    {
        RadGrid1 = new RadGrid();

        RadGrid1.AutoGenerateColumns = true;
        RadGrid1.ItemCommand += new GridCommandEventHandler(LVRadGridView_ItemCommand);
        RadGrid1.NeedDataSource += new GridNeedDataSourceEventHandler(RadGrid1_NeedDataSource);
        RadGrid1.AllowMultiRowSelection = true;
        RadGrid1.PagerStyle.Mode = GridPagerMode.NextPrevAndNumeric;
        RadGrid1.ClientSettings.Selecting.AllowRowSelect = true;

        RadGrid1.MasterTableView.CommandItemDisplay = GridCommandItemDisplay.Top;
        RadGrid1.MasterTableView.AutoGenerateColumns = true;
        RadGrid1.MasterTableView.ClientDataKeyNames = new string[] { "ID" };
        //RadGrid1.MasterTableView.CommandItemTemplate = new FolderViewerCommandItemTemplate();

        GridClientSelectColumn checkBoxColumn = new GridClientSelectColumn();
        RadGrid1.Columns.Add(checkBoxColumn);

        //BindGrid();
        Form.Controls.Add(RadGrid1);
    }

    void RadGrid1_NeedDataSource(object source, GridNeedDataSourceEventArgs e)
    {
        DataTable tab = new DataTable();
        tab.Columns.Add("ID");
        tab.Columns.Add("Color");

        tab.Rows.Add(1, "Red");
        tab.Rows.Add(2, "Orange");
        tab.Rows.Add(3, "Yellow");
        tab.Rows.Add(4, "Green");
        tab.Rows.Add(5, "Blue");

        tab.AcceptChanges();

        RadGrid1.DataSource = tab;
    }
    protected void Page_Load(object sender, EventArgs e)
    {

    }

    void LVRadGridView_ItemCommand(object source, GridCommandEventArgs e)
    {
        throw new Exception("The method or operation is not implemented.");
    }

Sincerely,
Ves
the Telerik team

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