Gridview行删除 [英] Gridview row Deletion

问题描述

在gridview里面我正在使用删除图片按钮，在那里 删除click事件就在那里。我需要使用rowindex和event参数e删除特定的gridview行。

Inside gridview i am using delete image button,in that  remove click event is there.I need to delete the particular gridview row using rowindex and event argument e.

 protected void remove_Click(object sender, EventArgs e)
        {
            if (ViewState["CurrentTable"] != null)
            {
                //create new datatable, cast datatable of viewstate
                DataTable dt = (DataTable)ViewState["CurrentTable"];
                DataRow drCurrentRow = null;
                int rowIndex = 0;
                //int rowIndex = Convert.ToInt32(e.RowIndex);
                if (dt.Rows.Count > 1)
                {
                    for (int i = 1; i <= dt.Rows.Count; i++)
                    {
                        //extract the values
                        TextBox arrivcity = (TextBox)Gridview1.Rows[rowIndex].Cells[1].FindControl("Arrival_city");
                        TextBox arrivdate = (TextBox)Gridview1.Rows[rowIndex].Cells[2].FindControl("arrival_Date");
                        DropDownList arrivhours = (DropDownList)Gridview1.Rows[rowIndex].Cells[3].FindControl("ddlahrs");
                        DropDownList arrivmin = (DropDownList)Gridview1.Rows[rowIndex].Cells[4].FindControl("ddlamin");
                        TextBox dist = (TextBox)Gridview1.Rows[rowIndex].Cells[4].FindControl("Distance");
                        TextBox convey = (TextBox)Gridview1.Rows[rowIndex].Cells[5].FindControl("Conveyance");
                        TextBox depdate = (TextBox)Gridview1.Rows[rowIndex].Cells[6].FindControl("departure_Date");
                        DropDownList depthours = (DropDownList)Gridview1.Rows[rowIndex].Cells[3].FindControl("ddldhrs");
                        DropDownList deptmin = (DropDownList)Gridview1.Rows[rowIndex].Cells[4].FindControl("ddldmin");
                        TextBox amount = (TextBox)Gridview1.Rows[rowIndex].Cells[8].FindControl("txtAmount");
                        TextBox ticketno = (TextBox)Gridview1.Rows[rowIndex].Cells[9].FindControl("Ticket_number");
                        drCurrentRow = dt.NewRow();
                        dt.Rows[i - 1]["Column1"] = arrivcity.Text;
                        dt.Rows[i - 1]["Column2"] = arrivdate.Text;
                        dt.Rows[i - 1]["Column3"] = arrivhours.SelectedValue;
                        dt.Rows[i - 1]["Column4"] = arrivmin.SelectedValue;
                        dt.Rows[i - 1]["Column5"] = dist.Text;
                        dt.Rows[i - 1]["Column6"] = convey.Text;
                        dt.Rows[i - 1]["Column7"] = depdate.Text;
                        dt.Rows[i - 1]["Column8"] = depthours.SelectedValue;
                        dt.Rows[i - 1]["Column9"] = deptmin.SelectedValue;
                        dt.Rows[i - 1]["Column10"] = amount.Text;
                        dt.Rows[i - 1]["Column11"] = ticketno.Text;
                        rowIndex++;
                    }
                    //dt.Rows.RemoveAt(e.RowIndex); 
                    //dt.Rows[rowIndex-1].Delete();
                    //dt.Rows[e.RowIndex].Delete();
                    //Gridview1.DeleteRow(rowIndex);
                    dt.Rows.RemoveAt(rowIndex - 2);
                    ViewState["CurrentTable"] = dt;
                    Gridview1.DataSource = dt;
                    Gridview1.DataBind();
                }
                SetPreviousData();
                DisableTextBox1();
            }
        }

推荐答案

Hi Litty，

Hi Litty,

如果取消注释以下内容，它是否有效：

Doesn't it work if uncomment the below:

int rowIndex = Convert.ToInt32(e.RowIndex);

Gridview1.DeleteRow(rowIndex);

请您说明问题是怎样的？

Would you please describe how the issue's like?

我建议您可以在论坛中发布您的问题，以获得专业答案：

I recommend you could post your issue in the forum to get a professional answer:

https://forums.asp.net/24.aspx/1?Web+Forms+Data+Controls

祝你好运，

Fletch

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