Question

我在asp.net 2005 c#中使用GridView控件。

如何从GridView删除特定行。

我写了以下代码。但它不起作用......

DataRow dr = dtPrf_Mstr.NewRow();
dtPrf_Mstr.Rows.Add(dr);
GVGLCode.DataSource = dtPrf_Mstr;
GVGLCode.DataBind();

int iCount = GVGLCode.Rows.Count;
for (int i = 0; i <= iCount; i++)
{
    GVGLCode.DeleteRow(i);
}
GVGLCode.DataBind();

Answer 1

您正在从gridview中删除该行，但您将再次调用databind，这只是将gridview刷新到原始数据源所在的状态。

从数据源中删除它，然后数据绑定，或数据绑定并从gridview中删除它而不进行重新数据绑定。

Answer 2

您正在从gridview中删除该行，然后将其重新绑定到数据源（仍包含该行）。从数据源中删除行，或者之后不重新绑定gridview。

Answer 3

默认答案是从您使用的任何集合中删除项目作为GridView的数据源。

如果该选项不合适，那么我建议您使用GridView的RowDataBound事件有选择地将行的e.Row）Visible属性设置为false。

Answer 4

using System;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Data.SqlClient;

public partial class Default3 : System.Web.UI.Page
{
   DataTable dt = new DataTable();
    DataSet Gds = new DataSet();
   // DataColumn colm1 = new DataColumn();
   //DataColumn colm2 = new DataColumn();

    protected void Page_Load(object sender, EventArgs e)
    {
        dt.Columns.Add("ExpId", typeof(int));
        dt.Columns.Add("FirstName", typeof(string));

    }


    protected void BtnLoad_Click(object sender, EventArgs e)
    {
        //   gvLoad is Grid View Id
        if (gvLoad.Rows.Count == 0)
        {
            Gds.Tables.Add(tblLoad());
        }
        else
        {
            dt = tblGridRow();
            dt.Rows.Add(tblRow());
            Gds.Tables.Add(dt);
        }
        gvLoad.DataSource = Gds;
        gvLoad.DataBind();
    }

    protected DataTable tblLoad()
    {
        dt.Rows.Add(tblRow());
        return dt;
    }
    protected DataRow tblRow()
    {
        DataRow dr;
        dr = dt.NewRow();
        dr["Exp Id"] = Convert.ToInt16(txtId.Text);
        dr["First Name"] = Convert.ToString(txtName.Text);
        return dr;
    }

    protected DataTable tblGridRow()
    {
        DataRow dr;
        for (int i = 0; i < gvLoad.Rows.Count; i++)
        {
            if (gvLoad.Rows[i].Cells[0].Text != null)
            {

                dr = dt.NewRow();
                dr["Exp Id"] = gvLoad.Rows[i].Cells[1].Text.ToString();
                dr["First Name"] = gvLoad.Rows[i].Cells[2].Text.ToString();
                dt.Rows.Add(dr);

            }

        }
        return dt;
    }

    protected void btn_Click(object sender, EventArgs e)
    {
        dt = tblGridRow();
        dt.Rows.Add(tblRow());
        Session["tab"] = dt;
        // Response.Redirect("Default.aspx");
    }

    protected void gvLoad_RowDeleting(object sender, GridViewDeleteEventArgs e)
    {
        dt = tblGridRow();
        dt.Rows.RemoveAt(e.RowIndex);
        gvLoad.DataSource = dt;
        gvLoad.DataBind();
    }
}

Answer 5

我的解决方案：

protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
    myobj.myconnection();// connection created
    string mystr = "Delete table_name where water_id= '" + GridView1.DataKeys[e.RowIndex].Value + "'";// query
    sqlcmd = new SqlCommand(mystr, myobj.mycon);
    sqlcmd.ExecuteNonQuery();
    fillgrid();
}

Answer 6

从表dtPrf_Mstr中删除行，而不是从网格视图中删除。

Answer 7

如何从datagridview中删除

1.按id列号查询删除 2.type

tabletableadaptor.delete
query(datagridwiewX1.selectedrows[0].cell[0].value.tostring);

Answer 8

请试试这个代码.....

DataRow dr = dtPrf_Mstr.NewRow();
dtPrf_Mstr.Rows.Add(dr);
GVGLCode.DataSource = dtPrf_Mstr;
GVGLCode.DataBind();
int iCount = GVGLCode.Rows.Count;
for (int i = 0; i < iCount; i++)
{
   GVGLCode.Rows.Remove(GVGLCode.Rows[i]);
}
GVGLCode.DataBind();

如何从GridView中删除一行？

8 个答案: