我有一个小型网络应用程序只是为了节省一些结算价值...... 我有一个网格视图，我在其中添加值，然后单击提交将所有值保存到数据库。问题是在提交第一个值时显示gridview，在提交页面后重新加载到同一页面并生成新的发票号...当我输入值然后绑定gridview时，值由网格视图但未显示...网格视图不可见但它具有值...任何人都可以找到解决方案吗？
这是我的添加按钮
protected void btnadd_Click(object sender, EventArgs e)
{
if (txbfree.Text == "")
txbfree.Text = "0";
if (txbitm.Text==""|| ddtyp.SelectedIndex == 0)
ScriptManager.RegisterStartupScript(this, GetType(), "alertMessage", "alert('Please select the commodity and type !');", true);
else
{
DataRow itm = dt1.NewRow();
itm["schl.with_entry_no"] = txbschl.Text;
itm["commodity"] = txbitm.Text;
itm["type"] = ddtyp.Text;
itm["rate_of_tax"] = txbtax.Text;
itm["unit_price"] = txbuprice.Text;
itm["quantity"] = txbqnty.Text;
itm["gross_value"] = txbgv.Text;
itm["cash_discount"] = txbcsh.Text;
itm["MRP"] = lbmrp.Text;
itm["taxable_amount"] = lbnttxamnt.Text;
itm["tax_amount"] = lbtxamnt.Text;
itm["total"] = lbtotal.Text;
itm["free"] = txbfree.Text;
itm["pr"] = ddpr.Text;
dt1.Rows.Add(itm);
grd8.DataSource = dt1;
grd8.DataBind();
txbschl.Text = "";
txbitm.Text = "";
txbtax.Text = "";
txbuprice.Text = "";
txbqnty.Text = "";
txbgv.Text = "";
txbcsh.Text = "";
lbmrp.Text = "";
lbnttxamnt.Text = "";
lbtxamnt.Text = "";
lbtotal.Text = "";
ddtyp.SelectedIndex = 0;
txbfree.Text = "";
btntotal.Text = "Total?";
lbwp.Text = "";
chck.Checked = false;
ddpr.SelectedIndex = 0;
lbpf.Text = "0";
}
}
这是我的提交按钮
protected void btnsbmt_Click(object sender, EventArgs e)
{
try
{
int sl = 0;
if (dt1.Rows.Count != 0)
{
if (txbdate.Text != "" && lbinvceno.Text != "" && txbdlrn.Text != "" && txbtin.Text != "")
{
DateTime Test;
if (DateTime.TryParseExact(txbdate.Text, "dd/MM/yyyy", null, System.Globalization.DateTimeStyles.None, out Test) == false)
ScriptManager.RegisterStartupScript(this, GetType(), "alertMessage", "alert('Please enter a valid date of the form dd/MM/yyyy!');", true);
else
{
for (int i = 0; i < dt1.Rows.Count; i++)
{
sl = i + 1;
string a = dt1.Rows[i][0].ToString();
string b = dt1.Rows[i][1].ToString();
string c = dt1.Rows[i][2].ToString();
double d1 = Convert.ToDouble(dt1.Rows[i][3].ToString());
double ef1 = Convert.ToDouble(dt1.Rows[i][4].ToString());
double g = Convert.ToDouble(dt1.Rows[i][5].ToString());
double h1 = Convert.ToDouble(dt1.Rows[i][6].ToString());
double ij1 = Convert.ToDouble(dt1.Rows[i][7].ToString());
double k1 = Convert.ToDouble(dt1.Rows[i][8].ToString());
double l1 = Convert.ToDouble(dt1.Rows[i][9].ToString());
double m1 = Convert.ToDouble(dt1.Rows[i][10].ToString());
string ty = dt1.Rows[i][11].ToString();
string o = dt1.Rows[i][12].ToString();
double d = Math.Truncate(d1 * 100) / 100;
double ef = Math.Truncate(ef1 * 100) / 100;
double h = Math.Truncate(h1 * 100) / 100;
double ij = Math.Truncate(ij1 * 100) / 100;
double k = Math.Truncate(k1 * 100) / 100;
double l = Math.Truncate(l1 * 100) / 100;
double m = Math.Truncate(m1 * 100) / 100;
string q = "insert into tbl_Form8 values('" + sl + "','" + a + "','" + b + "','" + c + "','" + d + "','" + ef + "','" + g + "','" + h + "','" + ij + "','" + k + "','" + l + "','" + m + "','" + ty + "','" + o + "','" + txbdate.Text + "','" + lbinvceno.Text + "')";
cmd = new SqlCommand(q, con);
cmd.ExecuteNonQuery();
ScriptManager.RegisterStartupScript(this, GetType(), "alertMessage", "alert('Form submitted successfully !');", true);
}
double tl = dt1.AsEnumerable().Sum(row => row.Field<double>("total"));
string q1 = "insert into tbl_Customer8 values('" + txbtin.Text + "','" + txbcst.Text + "','" + txbdlrn.Text + "','" + txbdlra.Text + "','" + txbPhone.Text + "','" + tl + "')";
cmd = new SqlCommand(q1, con);
cmd.ExecuteNonQuery();
string q2 = "insert into tbl_Payment8 values('" + Convert.ToInt32(lbinvceno.Text) + "','" + txbdlrn.Text + "','" + tl + "','0','0','" + txbdate.Text + "')";
cmd = new SqlCommand(q2, con);
cmd.ExecuteNonQuery();
cstckupd();
double p = Convert.ToDouble(lbtpf.Text);
double p1 = Math.Truncate(p * 100) / 100;
string q3 = "insert into tbl_ProfitLoss8 values('" + lbinvceno.Text + "','" + txbdate.Text + "','" + p1 + "')";
cmd = new SqlCommand(q3, con);
cmd.ExecuteNonQuery();
string q4 = "insert into tbl_Dealer values('" + txbdlrn.Text + "','" + txbdlra.Text + "','" + txbPhone.Text + "','" + txbtin.Text + "','" + txbcst.Text + "')";
cmd = new SqlCommand(q4, con);
cmd.ExecuteNonQuery();
txbdate.Text = "";
txbcst.Text = "";
txbtin.Text = "";
txbdlrn.Text = "";
txbdlra.Text = "";
lbtpf.Text = "0";
lbpf.Text = "0";
}
}
else
ScriptManager.RegisterStartupScript(this, GetType(), "alertMessage", "alert('Please provide the initial details !');", true);
}
else
ScriptManager.RegisterStartupScript(this, GetType(), "alertMessage", "alert('Please add the details first !');", true);
}
catch
{
Response.Redirect("Form8.aspx");
}
}
Gridview设计
<asp:GridView ID="grd8" runat="server" AutoGenerateColumns="False" OnRowDeleting="grd8_RowDeleting" RowStyle-Wrap="true" Width="100%"
ShowFooter="True">
<Columns>
<asp:TemplateField HeaderText="Sl No">
<ItemTemplate>
<%# ((GridViewRow)Container).RowIndex + 1%>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="schl.with_entry_no" HeaderText="Schl with entry no" />
<asp:BoundField DataField="commodity" HeaderText="Commodity" />
<asp:BoundField DataField="type" HeaderText="Type" />
<asp:BoundField DataField="MRP" HeaderText="MRP" />
<asp:BoundField DataField="rate_of_tax" HeaderText="Tax" />
<asp:BoundField DataField="unit_price" HeaderText="Unit price" />
<asp:BoundField DataField="quantity" HeaderText="Quantity" />
<asp:BoundField DataField="cash_discount" HeaderText="Cash discount" />
<asp:BoundField DataField="taxable_amount" HeaderText="Taxable amount" />
<asp:BoundField DataField="tax_amount" HeaderText="Tax amount" />
<asp:BoundField DataField="total" HeaderText="Total" />
<asp:BoundField DataField="gross_value" HeaderText="Gross value" Visible="false" />
<asp:BoundField DataField="free" HeaderText="Free" />
<asp:CommandField ShowDeleteButton="True" ButtonType="Button" />
</Columns>
<RowStyle Wrap="True" />
</asp:GridView>