Question

我有一个Gridview，其中包含80行中的几个TextBox，Dropdown Menus和Checkbox，以及与网格相关的OnRowEdit和OnRowDataBound事件。这就是我更新网格的方法：

ImageButton单击行切换到EditMode（7秒）并根据所选行与其他行的关系填充每行的复选框
ImageButton点击该行保存已编辑的数据（13秒）
- 行：click事件收集控制数据并将行数据保存到SQL
- 列：遍历所有行，获取复选框的状态并将其保存到SQL

我是一个自学者，很有可能会有所改善。如果有人请看一看，并指出关键的耗时操作是什么以及如何加快速度。 - 谢谢，马丁

OnRowEdit：

protected void OnRowEditing(object sender, GridViewEditEventArgs e)
    {
        Gridview_Milestones.SelectedIndex = -1;
        int rowIndex = e.NewEditIndex;
        SelectedMSRow.Text = Convert.ToString(rowIndex);
        SelectedMSRowValue.Text = Convert.ToString(Gridview_Milestones.DataKeys[rowIndex].Value);
        CheckBox CheckedOrNot = Gridview_Milestones.Rows[rowIndex].FindControl("checkboxCustomerRequired") as CheckBox;
        LabelCRD.Text = Convert.ToString(CheckedOrNot.Checked);
    }

OnRowDataBound：

protected void OnRowDataBoundMS(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            CheckBox CBTr = e.Row.FindControl("CheckboxTriggers") as CheckBox;
            if ((e.Row.RowState & DataControlRowState.Edit) > 0)
            {
                if (LabelCRD.Text == "True")
                {
                    TextBox TBresult1 = e.Row.FindControl("TextBoxDefaultDays") as TextBox;
                    TBresult1.Visible = false;
                }
                else
                {
                    TextBox TBresult1 = e.Row.FindControl("TextBoxDefaultDays") as TextBox;
                    TBresult1.Visible = true;
                }
                DropDownList DDL1 = e.Row.FindControl("DDOwnerGroup") as DropDownList;
                DropDownList DDL2 = e.Row.FindControl("DDOwner") as DropDownList;
                Label LBL1 = e.Row.FindControl("LabelDefaultOwnerGroupEdit") as Label;
                Label LBL2 = e.Row.FindControl("LabelDefaultOwnerEdit") as Label;
                DDL1.SelectedValue = Convert.ToString(LBL1.Text);
                DDL2.DataBind();
                DDL2.SelectedValue = Convert.ToString(LBL2.Text);
                CBTr.Visible = false;
            }
            if (!string.IsNullOrEmpty(SelectedMSRow.Text))
            {                    
                DataRowView rowView = (DataRowView)e.Row.DataItem;
                int myDataKey = Convert.ToInt32(rowView["ID"]);
                CBTr.Checked = SetCheckBoxTrigger(myDataKey);
            }
        }
    }

保存行数据：

protected void UpdateMilesStones(Object sender, EventArgs e)
    {
        UpdateTriggers();
        int rowIndex = Convert.ToInt32(SelectedMSRow.Text);
        Label DataKey = Gridview_Milestones.Rows[rowIndex].FindControl("LabelEditID") as Label;
        DropDownList DDL1 = Gridview_Milestones.Rows[rowIndex].FindControl("DDOwnerGroup") as DropDownList;
        CheckBox CKB1 = Gridview_Milestones.Rows[rowIndex].FindControl("checkboxCustomerRequiredEdit") as Checkbox;
        TextBox TB1 = Gridview_Milestones.Rows[rowIndex].FindControl("TextBoxDefaultDays") as TextBox;
        SqlConnection objConn = new SqlConnection("XXXXX");
        SqlCommand objCommand = new SqlCommand(@"Update ...", objConn);
        objCommand.Parameters.Add(".....")
        objConn.Open();
        objCommand.ExecuteNonQuery();
        objConn.Close();
        Gridview_Milestones.DataBind();
        Gridview_Milestones.EditIndex = -1;            
    }

保存列数据：

protected void UpdateTriggers()
    {
        DeleteOldTriggers();
        foreach (GridViewRow row in Gridview_Milestones.Rows)
        {
            string DataKey = Gridview_Milestones.DataKeys[row.RowIndex].Value.ToString();
            if (((CheckBox)row.FindControl("CheckboxTriggers")).Checked)
            {
                SqlConnection objConn = new SqlConnection("XXXXXX");
                SqlCommand objCommand = new SqlCommand(@"Insert into EPC_Triggers (MilestoneID, triggeredBy) Values (@IDMS,@IDRow)", objConn);
                objCommand.Parameters.Add("@IDMS", SqlDbType.Int).Value = Convert.ToInt32(SelectedMSRowValue.Text);
                objCommand.Parameters.Add("@IDRow", SqlDbType.Int).Value = Convert.ToInt32(DataKey);
                objConn.Open();
                objCommand.ExecuteNonQuery();
                objConn.Close();
            }
        }
        Gridview_Milestones.Columns[13].Visible = false;
    }

c＃非常慢的Gridview更新。

0 个答案: