C＃ - 将值从一个页面传输到动态gridview的文本框
这是我的aspx页面，描述了一个动态网格视图：
<asp:gridview ID="Gridview1" runat="server" ShowFooter="True"
AutoGenerateColumns="False"
OnRowCreated="Gridview1_RowCreated" style="margin-left: 13px; margin-right: 6px; margin-top: 12px;" Width="1035px" CellPadding="4" ForeColor="Black" GridLines="Horizontal" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px">
<Columns>
<asp:BoundField DataField="RowNumber" HeaderText="#" />
<asp:TemplateField HeaderText="Disease">
<ItemTemplate>
<asp:Button ID="Icd" runat="server" Text="ICD 10" Height="23px" Width="69px" OnClick="Icd_Click" />
<asp:TextBox ID="TextBox1" runat="server" Height="23px" Width="301px" MaxLength="100"></asp:TextBox>
</ItemTemplate>
<ItemStyle CssClass="gvCell"></ItemStyle>
</asp:TemplateField>
<asp:TemplateField HeaderText="Year">
<ItemTemplate>
<asp:TextBox ID="TextBox2" runat="server" Height="23px" Width="95px" MaxLength="4"></asp:TextBox>
</ItemTemplate>
<ItemStyle CssClass="gvCell"></ItemStyle>
</asp:TemplateField>
<asp:TemplateField HeaderText="Stuation">
<ItemStyle CssClass="gvCell"></ItemStyle>
<ItemTemplate>
<asp:DropDownList ID="DropDownList1" runat="server"
AppendDataBoundItems="true" Height="23px">
<asp:ListItem Value="-1">--Επιλέξτε--</asp:ListItem>
</asp:DropDownList>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Therapy">
<ItemStyle CssClass="gvCell"></ItemStyle>
<ItemTemplate>
<asp:TextBox ID="TextBox3" runat="server" Height="23px" Width="223px" MaxLength="100"></asp:TextBox>
</ItemTemplate>
<FooterStyle HorizontalAlign="Right" />
<FooterTemplate>
<asp:Button ID="ButtonAdd" runat="server"
Text="+Add new row"
onclick="ButtonAdd_Click" />
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField>
<ItemStyle CssClass="gvCell"></ItemStyle>
<ItemTemplate>
<asp:LinkButton ID="LinkButton1" runat="server"
onclick="LinkButton1_Click">Delete row</asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<FooterStyle BackColor="#006466" ForeColor="Black" />
<HeaderStyle BackColor="#333333" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="White" ForeColor="Black" HorizontalAlign="Right" />
<SelectedRowStyle BackColor="#CC3333" Font-Bold="True" ForeColor="White" />
<SortedAscendingCellStyle BackColor="#F7F7F7" />
<SortedAscendingHeaderStyle BackColor="#4B4B4B" />
<SortedDescendingCellStyle BackColor="#E5E5E5" />
<SortedDescendingHeaderStyle BackColor="#242121" />
这是aspx.cs代码：
private ArrayList GetDummyData()
{
ArrayList arr = new ArrayList();
arr.Add(new ListItem("Πάσχει", "1"));
arr.Add(new ListItem("Έπασχε", "2"));
return arr;
}
private void FillDropDownList(DropDownList ddl)
{
ArrayList arr = GetDummyData();
foreach (ListItem item in arr)
{
ddl.Items.Add(item);
}
}
private void SetInitialRow()
{
DataTable dt = new DataTable();
DataRow dr = null;
dt.Columns.Add(new DataColumn("RowNumber", typeof(string)));
dt.Columns.Add(new DataColumn("Column1", typeof(string)));//for TextBox value
dt.Columns.Add(new DataColumn("Column2", typeof(string)));//for TextBox value
dt.Columns.Add(new DataColumn("Column3", typeof(string)));//for DropDownList selected item
dt.Columns.Add(new DataColumn("Column4", typeof(string)));//for TextBox value
dr = dt.NewRow();
dr["RowNumber"] = 1;
dr["Column1"] = string.Empty;
dr["Column2"] = string.Empty;
dr["Column4"] = string.Empty;
dt.Rows.Add(dr);
//Store the DataTable in ViewState for future reference
ViewState["CurrentTable"] = dt;
//Bind the Gridview
Gridview1.DataSource = dt;
Gridview1.DataBind();
//After binding the gridview, we can then extract and fill the DropDownList with Data
DropDownList ddl1 = (DropDownList)Gridview1.Rows[0].Cells[3].FindControl("DropDownList1");
FillDropDownList(ddl1);
}
private void AddNewRowToGrid()
{
if (ViewState["CurrentTable"] != null)
{
DataTable dtCurrentTable = (DataTable)ViewState["CurrentTable"];
DataRow drCurrentRow = null;
if (dtCurrentTable.Rows.Count > 0)
{
drCurrentRow = dtCurrentTable.NewRow();
drCurrentRow["RowNumber"] = dtCurrentTable.Rows.Count + 1;
//add new row to DataTable
dtCurrentTable.Rows.Add(drCurrentRow);
//Store the current data to ViewState for future reference
ViewState["CurrentTable"] = dtCurrentTable;
for (int i = 0; i < dtCurrentTable.Rows.Count - 1; i++)
{
//extract the TextBox values
TextBox box1 = (TextBox)Gridview1.Rows[i].Cells[1].FindControl("TextBox1");
TextBox box2 = (TextBox)Gridview1.Rows[i].Cells[2].FindControl("TextBox2");
TextBox box3 = (TextBox)Gridview1.Rows[i].Cells[3].FindControl("TextBox3");
dtCurrentTable.Rows[i]["Column1"] = box1.Text;
dtCurrentTable.Rows[i]["Column2"] = box2.Text;
dtCurrentTable.Rows[i]["Column4"] = box3.Text;
//extract the DropDownList Selected Items
DropDownList ddl1 = (DropDownList)Gridview1.Rows[i].Cells[3].FindControl("DropDownList1");
// Update the DataRow with the DDL Selected Items
dtCurrentTable.Rows[i]["Column3"] = ddl1.SelectedItem.Text;
}
//Rebind the Grid with the current data to reflect changes
Gridview1.DataSource = dtCurrentTable;
Gridview1.DataBind();
}
}
else
{
Response.Write("ViewState is null");
}
//Set Previous Data on Postbacks
SetPreviousData();
}
private void SetPreviousData()
{
int rowIndex = 0;
if (ViewState["CurrentTable"] != null)
{
DataTable dt = (DataTable)ViewState["CurrentTable"];
if (dt.Rows.Count > 0)
{
for (int i = 0; i < dt.Rows.Count; i++)
{
TextBox box1 = (TextBox)Gridview1.Rows[i].Cells[1].FindControl("TextBox1");
TextBox box2 = (TextBox)Gridview1.Rows[i].Cells[2].FindControl("TextBox2");
DropDownList ddl1 = (DropDownList)Gridview1.Rows[rowIndex].Cells[3].FindControl("DropDownList1");
TextBox box3 = (TextBox)Gridview1.Rows[i].Cells[4].FindControl("TextBox3");
//Fill the DropDownList with Data
FillDropDownList(ddl1);
if (i < dt.Rows.Count - 1)
{
//Assign the value from DataTable to the TextBox
box1.Text = dt.Rows[i]["Column1"].ToString();
box2.Text = dt.Rows[i]["Column2"].ToString();
//Set the Previous Selected Items on Each DropDownList on Postbacks
ddl1.ClearSelection();
ddl1.Items.FindByText(dt.Rows[i]["Column3"].ToString()).Selected = true;
box3.Text = dt.Rows[i]["Column4"].ToString();
}
rowIndex++;
}
}
}
}
protected void ButtonAdd_Click(object sender, EventArgs e)
{
AddNewRowToGrid();
}
protected void Gridview1_RowCreated(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
DataTable dt = (DataTable)ViewState["CurrentTable"];
LinkButton lb = (LinkButton)e.Row.FindControl("LinkButton1");
if (lb != null)
{
if (dt.Rows.Count > 1)
{
if (e.Row.RowIndex == dt.Rows.Count - 1)
{
lb.Visible = false;
}
}
else
{
lb.Visible = false;
}
}
}
}
protected void LinkButton1_Click(object sender, EventArgs e)
{
LinkButton lb = (LinkButton)sender;
GridViewRow gvRow = (GridViewRow)lb.NamingContainer;
int rowID = gvRow.RowIndex;
if (ViewState["CurrentTable"] != null)
{
DataTable dt = (DataTable)ViewState["CurrentTable"];
if (dt.Rows.Count > 1)
{
if (gvRow.RowIndex < dt.Rows.Count - 1)
{
//Remove the Selected Row data and reset row number
dt.Rows.Remove(dt.Rows[rowID]);
ResetRowID(dt);
}
}
//Store the current data in ViewState for future reference
ViewState["CurrentTable"] = dt;
//Re bind the GridView for the updated data
Gridview1.DataSource = dt;
Gridview1.DataBind();
}
//Set Previous Data on Postbacks
SetPreviousData();
}
private void ResetRowID(DataTable dt)
{
int rowNumber = 1;
if (dt.Rows.Count > 0)
{
foreach (DataRow row in dt.Rows)
{
row[0] = rowNumber;
rowNumber++;
}
}
}
private string GetConnectionString()
{
return ConfigurationManager.ConnectionStrings["RegistrationConnectionString"].ConnectionString;
}
private void InsertRecords(StringCollection sc)
{
if (Session["pa_id"] != null)
{
StringBuilder sb = new StringBuilder(string.Empty);
string[] splitItems = null;
const string sqlStatement = "INSERT INTO P_deasease (Date,P_Id,Nosos,Situ,Year_d,Therapy) VALUES";
int id = Convert.ToInt32(Session["pa_id"]);
foreach (string item in sc)
{
if (item.Contains(","))
{
splitItems = item.Split(",".ToCharArray());
sb.AppendFormat("{0}(@Date, @p_id ,N'{1}',N'{2}',N'{3}',N'{4}'); ", sqlStatement, splitItems[0], splitItems[1], splitItems[2], splitItems[3]);
}
}
using (SqlConnection connection = new SqlConnection(GetConnectionString()))
{
connection.Open();
using (SqlCommand cmd = new SqlCommand(sb.ToString(), connection))
{
cmd.Parameters.AddWithValue("@p_id", id);
cmd.Parameters.AddWithValue("@Date", DateTime.Now.ToShortDateString());
cmd.CommandType = CommandType.Text;
cmd.ExecuteNonQuery();
}
}
lblMessage.ForeColor = System.Drawing.Color.Green;
lblMessage.Text = "Success!";
}
else
{
lblid1.Visible = true;
}
}
protected void BtnSave_Click(object sender, EventArgs e)
{
int rowIndex = 0;
StringCollection sc = new StringCollection();
if (ViewState["CurrentTable"] != null)
{
DataTable dtCurrentTable = (DataTable)ViewState["CurrentTable"];
if (dtCurrentTable.Rows.Count > 0)
{
for (int i = 1; i <= dtCurrentTable.Rows.Count; i++)
{
//extract the values
TextBox box1 = (TextBox)Gridview1.Rows[rowIndex].Cells[1].FindControl("TextBox1");
TextBox box2 = (TextBox)Gridview1.Rows[rowIndex].Cells[2].FindControl("TextBox2");
DropDownList ddl1 = (DropDownList)Gridview1.Rows[rowIndex].Cells[3].FindControl("DropDownList1");
TextBox box3 = (TextBox)Gridview1.Rows[rowIndex].Cells[4].FindControl("TextBox3");
//add them to the collections with a comma "," as the delimited values
sc.Add(string.Format("{0},{1},{2},{3}", box1.Text, ddl1.SelectedItem.Text, box2.Text, box3.Text));
rowIndex++;
}
//Call the method for executing inserts
InsertRecords(sc);
}
}
}
正如您在第1栏中看到的那样，有一个按钮和一个文本框。 单击该按钮时，会出现一个弹出窗口，其中包含“在数据库中搜索”机制。
因此，当在弹出窗口的gridview中选择一个值时，我想将其传输到相应的文本框。
如何将值传输到相应的文本框？作为初学者，我在这方面遇到了很大的困难。任何帮助将不胜感激
0 个答案:
没有答案
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