Question

我是C＃ASP.NET的新手，我的项目包含2个GridViews，第一个GridView显示来自SQL Server的数据，并且工作正常。现在我需要实现的是，当我们从gridView 1中选择任何行时，应将这些行复制到GridView 2中。

下面是我的代码：

protected void Button1_Click(object sender, EventArgs e)
    {
        SqlConnection sc = new SqlConnection(@"Data Source=.\sqlexpress;Initial Catalog=x;Integrated Security=True");
        sc.Open();
        SqlDataAdapter sd = new SqlDataAdapter("select * from BookDetails", sc);
        DataSet ds = new DataSet();
        sd.Fill(ds, "BookDetails");
        sc.Close();
        GridView1.DataSource = ds;
        GridView1.DataBind();
    }


 protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)
    {
         foreach (GridViewRow row in GridView1.Rows)
        {
            GridView.Rows.Add(row);
            GridView.Rows.Remove(row);
        }
    }

GridView.Rows.Add（row）; //错误 GridView.Rows.Remove（row）; //错误在表格中显示数据源的值，每一列代表一个字段，每一行代表一条记录

Answer 1

问题是您根本不需要遍历每一行。因为您已经知道所选的行。尝试使用类似的东西：

GridViewRow row = GridView1.SelectedRow;
GridView2.DataSource = row;
GridView2.DataBind();

顺便说一下，以下代码将帮助您遍历每一行：

foreach (GridViewRow row in GridView1.Rows)
{
........                
}

Answer 2

使用它可能会对您有所帮助。

<body>
    <form id="form1" runat="server">
    <div>
        <asp:GridView ID="gridView1" runat="server">
            <Columns>
                <asp:TemplateField>
                    <ItemTemplate>
                        <asp:CheckBox ID="chkSelect" runat="server" />
                        <asp:HiddenField ID="hdValue" runat="server" Value='<%#Eval("ID") %>' />
                    </ItemTemplate>
                </asp:TemplateField>
            </Columns>
        </asp:GridView>
    </div>
    <div>
        <asp:Button ID="btnMove" runat="server" Text="Move" OnClick="btnMove_Click" />
    </div>
    <div>
        <asp:GridView ID="gridView2" runat="server">
        </asp:GridView>
    </div>
    </form>
</body>

c＃代码

private void BindGridView()
    {
        if (Session[key] == null)
        {
            gridView1.DataSource = GetDataSource();
            gridView1.DataBind();
        }
        else
        {
            gridView1.DataSource = (DataTable)Session[key];
            gridView1.DataBind();
        }

    }

protected DataTable GetDataSource()
    {
        try
        {
            DataTable dt = new DataTable();
            dt = new DataTable();
            dt.Columns.Add("ID", typeof(int)).AutoIncrement = true;
            dt.Columns.Add("Name", typeof(string));
            dt.Columns.Add("Age", typeof(int));
            DataColumn[] keys = new DataColumn[2];
            keys[0] = dt.Columns["ID"];
            dt.PrimaryKey = keys;
            dt.Rows.Add("1", "first object", 34);
            dt.Rows.Add("2", "second object", 24);
            dt.Rows.Add("3", "third object", 34);
            dt.Rows.Add("4", "fourth object", 24);
            dt.Rows.Add("5", "fifth object", 34);

            Session[key] = dt;
            return dt;
        }
        catch
        {
            return null;
        }
    }

protected void btnMove_Click(object sender, EventArgs e)
    {
        try
        {
            DataTable dtMain = Session[key] as DataTable;
            //copy the schema of source table
            DataTable dtClone = dtMain.Clone();
            foreach (GridViewRow gv in gridView1.Rows)
            {
                CheckBox chk = gv.FindControl("chkSelect") as CheckBox;
                HiddenField hdValue = gv.FindControl("hdValue") as HiddenField;
                if (chk.Checked)
                {
                    //get only the rows you want
                    DataRow[] results = dtMain.Select("ID=" + hdValue.Value + "");
                    //populate new destination table
                    foreach (DataRow dr in results)
                    {
                        dtClone.ImportRow(dr);
                    }
                }
                gridView2.DataSource = dtClone;
                gridView2.DataBind();
            }
        }
        catch
        {
            BindGridView();
        }

    }

Answer 3

我认为您正在寻找这个

int x = 0;// this must be placed obove the dataGridView1_SelectionChanged 
private void dataGridView1_SelectionChanged(object sender, EventArgs e)
{

    foreach (DataGridViewRow row in dataGridView1.SelectedRows)
    {
        this.dataGridView3.Rows.Add();
        this.dataGridView3.Rows[x].Cells[0].Value = row.Cells[0].Value.ToString();

        x++;

    }
}

无法将数据从一个GridView复制到另一个ASP.NET C＃

3 个答案: