Question

我有一个动态的GridView：

public class DynamicGridView
{
public DynamicGridView(SectiuneFormular sectiuneFormular , int idFormular)
{
    this.idFormular = idFormular;
    gridView = new GridView();
    sectiune = sectiuneFormular;
    dataTable = new DataTable();
    gridView.DataSource = dataTable;
    SeteazaDataTable();
    SeteazaAspectGridView();
    gridView.DataBind();

}

private int idFormular = 0;
public int IdFormular
{
    get
    {
        return idFormular;
    }

    set
    {
        idFormular = value;
    }
}

private GridView gridView;
public GridView GridView
{
    get
    {
        return gridView;
    }

    set
    {
        gridView = value;
    }
}

private SectiuneFormular sectiune;
public SectiuneFormular Sectiune
{
    get
    {
        return sectiune;
    }

    set
    {
        sectiune = value;
    }
}

private DataTable dataTable;
public DataTable DataTable
{
    get
    {
        return dataTable;
    }

    set
    {
        dataTable = value;
    }
}


public void SeteazaDataTable()
{
    //Adaug Header si denumirea lui
    for (int numarColoana = 2; numarColoana <= 15; numarColoana++)
    {
        if (sectiune.Sablon.Coloane[numarColoana] != "")
        {
            dataTable.Columns.Add(sectiune.Sablon.Coloane[numarColoana]);
            AdaugaColoanaGridView(sectiune.Sablon.Coloane[numarColoana] , numarColoana);
        }
    }
    dataTable.Columns.Add("Id");
    dataTable.Columns.Add("IdFormular");

    //Incarc datele in tabel
    int numarColoane = dataTable.Columns.Count;
    foreach (Inregistrare continut in sectiune.Continut)
    {
        DataRow dataRow = dataTable.NewRow();
        for (int coloana = 0; coloana < numarColoane-2; coloana++)
        {
            dataRow[coloana] = continut.Coloane[coloana+2]; 

        }
        dataRow[numarColoane-1] = continut.Id;
        dataRow[numarColoane - 2] = idFormular;
        dataTable.Rows.Add(dataRow);
    }

}


public void SeteazaAspectGridView()
{

    gridView.AutoGenerateDeleteButton = true;
    gridView.AutoGenerateEditButton = true;

    gridView.DataKeyNames = new string[] { "Id" , "IdFormular" };

    gridView.AllowPaging = true;
    gridView.AutoGenerateColumns = false;
    gridView.Width = new Unit("75%");
    gridView.EmptyDataText = "Nu s-au gasit inregistrari";
    gridView.CellPadding = 4;
    gridView.CssClass = "GridView";
    gridView.ForeColor = System.Drawing.ColorTranslator.FromHtml("#33333");
    gridView.GridLines = GridLines.None;
    gridView.EnableModelValidation = true;
    gridView.RowStyle.CssClass = "GridViewItem";
    gridView.FooterStyle.ForeColor = System.Drawing.ColorTranslator.FromHtml("#0099FF");
    gridView.PagerStyle.CssClass = "GridViewPager";
    gridView.PagerStyle.ForeColor = System.Drawing.ColorTranslator.FromHtml("#0099FF");
    gridView.PagerStyle.HorizontalAlign = HorizontalAlign.Center;
    gridView.SelectedRowStyle.BackColor = System.Drawing.ColorTranslator.FromHtml("#D1DDF1");
    gridView.SelectedRowStyle.ForeColor = System.Drawing.ColorTranslator.FromHtml("#333333");
    gridView.HeaderStyle.CssClass = "GridViewHeader";
    gridView.HeaderStyle.ForeColor = System.Drawing.ColorTranslator.FromHtml("#2084C5");
    gridView.HeaderStyle.BorderStyle = BorderStyle.None;
    gridView.EditRowStyle.BackColor = System.Drawing.ColorTranslator.FromHtml("#2461BF");
    gridView.AlternatingRowStyle.CssClass = "GridViewItem";
}



public void AdaugaColoanaGridView(string dataField , int numarColoana)
{
    TemplateField tf2 = new TemplateField();
    tf2.HeaderTemplate = new GridViewTemplate(DataControlRowType.Header, dataField, dataField, new Label() , numarColoana , "header");
    tf2.ItemTemplate = new GridViewTemplate(DataControlRowType.DataRow, dataField, dataField, new Label() , numarColoana  , "item");
    tf2.EditItemTemplate = new GridViewTemplate(DataControlRowType.DataRow, dataField, dataField, new TextBox() , numarColoana ,"edit");

    //BoundField numeColoana = new BoundField();
    //numeColoana.DataField = dataField;
    //numeColoana.HeaderText = dataField;


    //gridView.Columns.Add(numeColoana);
    gridView.Columns.Add(tf2);
}



}

 public class GridViewTemplate : ITemplate
{
private DataControlRowType templateType;
private string columnNameFriendly;
private string columnNameData;
private Control control;
private int numarColoana;
private string type;
public GridViewTemplate(DataControlRowType type, string colNameFr, string colNameDt, Control con , int numarColoana , string tip)
{
    templateType = type;
    columnNameFriendly = colNameFr;
    columnNameData = colNameDt;
    control = con;
    this.numarColoana = numarColoana;
    this.type = tip;
}

public void InstantiateIn(System.Web.UI.Control container)
{
    switch (templateType)
    {
        case DataControlRowType.Header:
            {
                Literal lc = new Literal();
                lc.Text = columnNameFriendly;
                container.Controls.Add(lc);
                break;
            }
        case DataControlRowType.DataRow:
            {
                Control field = control;
                if (field.GetType() == typeof(Label))
                {
                    Label lbl = new Label();
                    lbl.ID = "label"+type+ numarColoana;
                    lbl.DataBinding += new EventHandler(this.lbl_DataBind);
                    container.Controls.Add(lbl);
                }
                else if (field.GetType() == typeof(TextBox))
                {

                    TextBox txt = new TextBox();
                    txt.ID = "textbox"+type+ numarColoana;
                    txt.DataBinding += new EventHandler(this.txt_DataBind);
                    container.Controls.Add(txt);
                }
                else if (field.GetType() == typeof(DropDownList))
                {
                    DropDownList ddl = (DropDownList)field;
                    ddl.DataBinding += new EventHandler(this.ddl_DataBind);
                    container.Controls.Add(ddl);
                }
                else if (field.GetType() == typeof(CheckBox))
                {
                    CheckBox cbx = new CheckBox();
                    cbx.DataBinding += new EventHandler(this.cbx_DataBind);
                    container.Controls.Add(cbx);
                }
                break;
            }
    }
}

private void txt_DataBind(Object sender, EventArgs e)
{

    TextBox txt = (TextBox)sender;
    GridViewRow row = (GridViewRow)txt.NamingContainer;
    txt.Text = DataBinder.Eval(row.DataItem, columnNameData).ToString();
    txt.Font.Name = "Arial";
}

private void lbl_DataBind(Object sender, EventArgs e)
{
    Label lbl = (Label)sender;
    GridViewRow row = (GridViewRow)lbl.NamingContainer;
    lbl.Text = DataBinder.Eval(row.DataItem, columnNameData).ToString();
    lbl.Font.Name = "Arial";
}

private void ddl_DataBind(Object sender, EventArgs e)
{
    DropDownList ddl = (DropDownList)sender;
    GridViewRow row = (GridViewRow)ddl.NamingContainer;
    ddl.SelectedValue = DataBinder.Eval(row.DataItem, columnNameData).ToString();
    ddl.Font.Name = "Arial";
}

private void cbx_DataBind(Object sender, EventArgs e)
{
    CheckBox cbx = (CheckBox)sender;
    GridViewRow row = (GridViewRow)cbx.NamingContainer;
    cbx.Checked = false;
}
}

1.第一期：我的RowUpdating事件由 GridViewEditEventHandler 处理，但不由GridViewUpdateEventHandler处理（测试断点）。

如果我按更新单元格

  string cell=  grid.Rows[e.NewEditIndex].Cells[cellNumber].Controls[0].ToString(); //cell== OldItemValue(from my ViewItemTemplate)

cell ==＆＃34; OldItemValue＆＃34; ，来自我的ViewItemTemplate，但它必须从EditItemTemplate

Answer 1

按下任何按钮时，按下＆＃34;编辑＆＃34;命令，RowEditing事件应该发生。之后，按＆＃34;更新＆＃34;触发RowUpdating命令。在RowEditing处理程序中，您可以在其中找到控件并获取其值。你在做什么

string cell=grid.Rows[e.NewEditIndex].Cells[cellNumber].Controls[0].ToString();

...我通常grid.rows[e.NewEditIndex].FindControl("ID OF CONTROL")来获得确切的控制权。

问题有点令人困惑所以我可能没有给你答案。你能提供更多信息吗？

无法在Dynamic GridView中从EditItemTemplate中找到控件

1 个答案: