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从ASP.NET GridView动态添加和删除行 [ ^ ]



谢谢

您好，



试试这个，



DataTable dt = new DataTable（）;
dt =（DataTable）ViewState [ CurrentData];

for （ int i = 0 ; i< dt.rows.count; i ++）>
{
if （dt.Rows [i] [ 0 ]。ToString（）== 您的值）
{
dt.Rows [i] .Delete（）;
}
}
GridView1.DataSource = dt;
GridView1.DataBind（）;
ViewState [ CurrentData] = dt;

  me  .validate（）
我跨度> .remove.currentcell（）

Dropdownlist 1 =Doc no
Dropdownlist 2 = Doc title
Button = Add
Gridview=gridview1
Dropdown get data from sharepoint list.(use caml query)

doc no | doc title | add |

--------------------------

grid view1


--------------------------

How to delete row that i have added in gridview?


this my code:

protected void BindGrid(int rowcount)
       {

           DataTable dt = new DataTable();

           DataRow dr;

           dt.Columns.Add(new System.Data.DataColumn("Document No", typeof(String)));

           dt.Columns.Add(new System.Data.DataColumn("Document Title", typeof(String)));

           dt.Columns.Add(new System.Data.DataColumn("Revision", typeof(String)));

           dt.Columns.Add(new System.Data.DataColumn("File", typeof(String)));



           if (ViewState["CurrentData"] != null)
           {

               for (int i = 0; i < rowcount + 1; i++)
               {

                   dt = (DataTable)ViewState["CurrentData"];

                   if (dt.Rows.Count > 0)
                   {
                       dr = dt.NewRow();
                       dr[0] = dt.Rows[0][0].ToString();
                   }

               }

               dr = dt.NewRow();

               dr[0] = DropDownList1.Text;

               dr[1] = DropDownList2.Text;

               dt.Rows.Add(dr);

           }

           else
           {

               dr = dt.NewRow();

               dr[0] = DropDownList1.Text;

               dr[1] = DropDownList2.Text;

               dt.Rows.Add(dr);

           }
           if (ViewState["CurrentData"] != null)
           {

               GridView1.DataSource = (DataTable)ViewState["CurrentData"];

               GridView1.DataBind();

           }

           else
           {

               // Bind GridView with the initial data assocaited in the DataTable

               GridView1.DataSource = dt;

               GridView1.DataBind();

           }

           // Store the DataTable in ViewState to retain the values

           ViewState["CurrentData"] = dt;
       }

for button add

protected void Button1_Click(object sender, EventArgs e)
       {
           if (ViewState["CurrentData"] != null)
           {

               DataTable dt = (DataTable)ViewState["CurrentData"];

               int count = dt.Rows.Count;

               BindGrid(count);

           }

           else
           {

               BindGrid(1);

           }

gridview:

<asp:GridView ID="GridView1" AutoGenerateDeleteButton="true" OnRowDeleting="GridView1_RowDeleting" runat="server" CssClass="datagridview">
                </asp:GridView>

Please follow the link below:

Dynamically adding and deleting rows from ASP.NET GridView[^]

Thanks

Hi,

Try this,

DataTable dt = new DataTable();
        dt = (DataTable)ViewState["CurrentData"];

        for(int i=0;i<dt.rows.count;i++)>
        {
            if (dt.Rows[i][0].ToString() == "Your value")
            {
                dt.Rows[i].Delete();
            }
        }
        GridView1.DataSource = dt;
        GridView1.DataBind();
        ViewState["CurrentData"] = dt;

me.validate()
me.remove.currentcell()