如何从父RowUpdating方法访问嵌套的网格视图行

问题描述

我有一个子网格视图，它添加到父RowDataBound中的父网格视图。在父编辑时，所有子gridview行都可以编辑。这意味着孩子没有自己编辑。如何在父RowUpdating中获取子gridview行以保存已编辑的数据？

I have a child grid view which add to parent grid view in parent RowDataBound. On parent editing, all the child gridview rows are ready to edit. It means that child doesn't have edit itself. How can I get child gridview rows in parent RowUpdating to save edited data?

protected void gvEquipment_RowDataBound(object sender, GridViewRowEventArgs e)
  {
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        GridView gvChild = new GridView();
        gvChild.DataSource = dt;
        gvChild.CssClass = "NestedGrid";
        gvChild.RowDataBound += new GridViewRowEventHandler(gvChild_RowDataBound);

        //Create the show/hide button which will be displayed on each row of the main GridView
        Image imgCollapse = new Image();
        imgCollapse.ID = "btnCollapse";
        imgCollapse.ImageUrl = "~/images/Collapse.gif";
        //Add the javascript function to the show/hide button, passing the row to be toggled as a parameter");
        imgCollapse.Attributes.Add("onclick", "javascript: gvrowtoggle(" + (e.Row.RowIndex + e.Row.RowIndex + 2) + ")");

        //Add the expanded details row after each record in the main GridView
        Table tb1 = e.Row.Parent as Table;
        GridViewRow tr = new GridViewRow(e.Row.RowIndex + 1, -1, DataControlRowType.EmptyDataRow, DataControlRowState.Normal);
        tr.CssClass = "hidden";
        string sr = (e.Row.RowIndex + e.Row.RowIndex + 2).ToString();
        tr.ID = e.Row.RowIndex.ToString();
        TableCell tc = new TableCell();
        tc.ColumnSpan = gvEquipment.Columns.Count + 3;//e.Row.Cells.Count;
        tc.BorderStyle = BorderStyle.None;
        //tc.BackColor = System.Drawing.Color.WhiteSmoke;
        tc.Controls.Add(gvChild);
        tr.Cells.Add(tc);
        tb1.Rows.Add(tr);
        e.Row.Cells[0].Controls.Add(imgCollapse);
        e.Row.CssClass = "GridAltItem";
        gvChild.DataBind();
if (IsEditMode && e.Row.RowIndex == EditIndex)
     {
         // edit mode for childGrid
         for (int i = 0; i < dt.Rows.Count; i++)
             for (int j = 0; j < dt.Columns.Count; j++)
             {
                 TextBox txt = new TextBox();
                 txt.Text = dt.Rows[i][j].ToString();
                 gvChild.Rows[i].Cells[j].Controls.Add(txt);
             }
     }
    }
}

 protected void gvEquipment_RowUpdating(object sender, GridViewUpdateEventArgs e)
  {
      GridView gv = (GridView)sender;
      //how to get child gridview controls?
  }

推荐答案

protected void gvEquipment_RowUpdating(object sender, GridViewUpdateEventArgs e)
  {

GridViewRow ParentGridRow = gvEquipment.Rows[0];
GridView GridViewChild = (GridView)ParentGridRow.FindControl("GridViewChild");
 
GridViewRow ChildRow = childGridView.Rows[GridViewChild.EditIndex];
 
TextBox txtBoxExample = (TextBox)ChildRow.FindControl("ControlToFind");
}

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