保持在当前行中添加数据，除非我按清除按钮更改行
本文关键字：非我 清除 按钮 数据 添加 | 更新日期: 2023-09-27 17:49:55
我想继续添加数据在当前行的网格，除非我按下清除按钮改变行，但当我开始添加数据在新的添加行它创建一个新的行。我想保留之前的行。任何帮助!!
public partial class WebForm5 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!(IsPostBack))
{
Session["List"] = null;
ViewState["i"] = ViewState["j"] = 1;
ViewState["state"] = "";
}
}
public static DataTable dt;
public static int i = 1;
protected void txtName_Click(object sender, EventArgs e)
{
Session["List"] = dt;
dt = new DataTable();
DataRow dr = null;
dt.Columns.Add(new DataColumn("RowNumber", typeof(int)));
dt.Columns.Add(new DataColumn("Column1", typeof(string)));
if (Convert.ToInt16 (ViewState ["i"]) ==Convert.ToInt16( ViewState["j"]))
{
// here i have to add something
dr = dt.NewRow();
ViewState["state"] = txtName.Text;
dr["RowNumber"] = i;
dr["Column1"] = Convert.ToString(ViewState["state"]) + txtName.Text;
dt.Rows.Add(dr);
}
else if ( Convert .ToInt16 ( ViewState["i"] )!= Convert .ToInt16 ( ViewState["j"]))
{
if (Session["List"] != null)
{
dt = (DataTable)Session["List"];
dr = dt.NewRow();
dr["Column1"] = txtName.Text;
dr["RowNumber"] = i;
ViewState["state"] = txtName.Text;
dt.Rows.Add(dr);
//lst = (List<string>)Session["List"];
//lst.Insert(i,txtAdd.Text);
//i++;
}
ViewState["i"] = ViewState["j"];
}
grdData.DataSource = dt;
grdData.DataBind();
}
protected void btnClr_Click(object sender, EventArgs e)
{
ViewState["j"] = i++;
}
}
公共部分类WebForm5: System.Web.UI.Page{Page_Load(对象发送者，EventArgs e){如果(! (IsPostBack)){Session["List"] = null;ViewState["i"] = ViewState["j"] = 1;ViewState["state"] = ";
}
}
public static DataTable dt;
public static int i = 1;
protected void txtName_Click(object sender, EventArgs e)
{
Session["List"] = dt;
dt = new DataTable();
DataRow dr = null;
dt.Columns.Add(new DataColumn("RowNumber", typeof(int)));
dt.Columns.Add(new DataColumn("Column1", typeof(string)));
if (Session["List"] == null)
{
if (Convert.ToInt16(ViewState["i"]) == Convert.ToInt16(ViewState["j"]))
{
dr = dt.NewRow();
dr["RowNumber"] = i;
dr["Column1"] = Convert.ToString(ViewState["state"]) + txtName.Text;
ViewState["state"] = Convert.ToString(ViewState["state"]) + txtName.Text;
dt.Rows.Add(dr);
}
grdData.DataSource = dt;
grdData.DataBind();
}
if (Session["List"] != null)
{
if ( Convert .ToInt16 ( ViewState["i"] )!= Convert .ToInt16 ( ViewState["j"]))
{
dt = (DataTable)Session["List"];
dr = dt.NewRow();
dr["Column1"] = txtName.Text;
dr["RowNumber"] = i;
dt.Rows.Add(dr);
//lst = (List<string>)Session["List"];
//lst.Insert(i,txtAdd.Text);
//i++;
grdData.DataSource = dt;
grdData.DataBind();
}
else if (Convert.ToInt16(ViewState["i"]) == Convert.ToInt16(ViewState["j"]))
{
dt = (DataTable)Session["List"];
ViewState["state"] = grdData.Rows[((grdData.Rows.Count) - 1)].Cells[1].Text;
string i =Convert.ToString( ViewState["state"]);
int j = dt.Rows.Count;
dt.Rows[(dt.Rows.Count)-1]["Column1"] =Convert.ToString(ViewState["state"])+ txtName.Text;
grdData.DataSource = dt;
grdData.DataBind();
}
ViewState["i"] = ViewState["j"];
}
txtName.Text = "";
}
protected void btnClr_Click(object sender, EventArgs e)
{
ViewState["j"] = i++;
ViewState["state"] = "";
// txtName.Text = grdData.Rows[(grdData.Rows.Count - 1)].Cells[1].Text;
}
protected void btnnew_Click(object sender, EventArgs e)
{
dt.Rows[(grdData.Rows.Count - 1)]["Column1"] = txtName.Text;
grdData.DataSource = dt;
grdData.DataBind();
}
}