I have an integer parameter called amount as my report parameter. How do I pass this parameter in the given events XtraReport.ParametersRequestValueChanged and XtraReport.ParametersRequestSubmit code as I am getting confused about parameter, value and parametersinformation.
private void XtraReport1_ParametersRequestSubmit(object sender,
ParametersRequestEventArgs e) {
if ((int)e.ParametersInformation[0].Parameter.Value > 10 ||
(int)e.ParametersInformation[0].Parameter.Value < 0) {
e.ParametersInformation[0].Parameter.Value = parameter;
e.ParametersInformation[0].Editor.Text = parameter.ToString();
}
}
private void XtraReport1_ParametersRequestValueChanged(object sender,
ParametersRequestValueChangedEventArgs e) {
parameter = (int)e.ChangedParameterInfo.Parameter.Value;
}
Related
I have a function which is receiving parameters from another function and I have to pass these parameters to a button when it's execution get's complete !
async void CallCompanyApi(String CompanyGp, string CompanyId)
{
First.IsVisible = false;
Second.IsVisible = true;
// Next_Clicked(CompanyGp,CompanyId)
}
private void Next_Clicked(object sender, EventArgs e)
{
}
I have to pass these 2 parameters to that button !
you need to create class level variables to store these values
string _CompanyGp;
string _CompanyId;
async void CallCompanyApi(String CompanyGp, string CompanyId)
{
First.IsVisible = false;
Second.IsVisible = true;
// store the parameters in the class level variables
_CompanyGp = CompanyGp;
_CompanyId = CompanyId;
}
private void Next_Clicked(object sender, EventArgs e)
{
// you can now just reference _CompanyGp and _CompanyId
}
FYI, this is basic C# and really has nothing specific to do with Xamarin
Welcome to SO!
If CallCompanyApi and Next_Clicked located in different class, you can store them in Xamarin Forms by using Preferences.
using Xamarin.Essentials;
async void CallCompanyApi(String CompanyGp, string CompanyId)
{
First.IsVisible = false;
Second.IsVisible = true;
//Next_Clicked(CompanyGp,CompanyId)
Preferences.Set("CompanyGp", CompanyGp);
Preferences.Set("CompanyId", CompanyId);
}
Then in another class, click button will get them:
private void Next_Clicked(object sender, EventArgs e)
{
var CompanyGp = Preferences.Get("CompanyGp", "default_value");
var CompanyId = Preferences.Get("CompanyId", "default_value");
}
Else if they are in the same class, you can use the way as Jason's said.
============================Update=========================
You can set a default value if needed, such as follow:
var CompanyGp = Preferences.Get("CompanyGp", "Company_A");
var CompanyId = Preferences.Get("CompanyId", "1");
Defalut CompanyGp is Company_A, and default CompanyId is 1.
I want to increment date in every click ASP.NET.
But Every time the page posts back, it is essentially starting over from scratch - anything initialized to 0.
I need to persist a value across postbacks but I don't how to do that. I would appreciate for any help.
Here is what I'am trying to do:
int myNumber = 0;
protected void Button1_Click1(object sender, EventArgs e)
{
lblDate.Text = DateTime.Now.StartOfWeek(DayOfWeek.Monday).AddDays(myNumber).ToShortDateString();
myNumber++;
}
Update:
My finaly goal is to get next weeks first day with next button and Previous week, I mean I want to forword and backword...
public int NextCount
{
get { return ViewState["Count"] != null ? (int)ViewState["Count"] : 7; }
set { ViewState["Count"] = value; }
}
protected void btnNext_Click1(object sender, EventArgs e)
{
lblsum.Text = DateTime.Now.StartOfWeek(DayOfWeek.Monday).AddDays(NextCount).ToShortDateString();
NextCount = NextCount+7;
}
protected void btnPrevious_Click(object sender, EventArgs e)
{
lblsum.Text = DateTime.Now.StartOfWeek(DayOfWeek.Monday).AddDays(NextCount).ToShortDateString();
NextCount = NextCount - 7;
}
But When I click Prev button .. there is delay with one click after two or three Click then reaction coming the same with next button when you click from prev to next. Maybe I have to store it in session?
I have updated your code below by using ViewState to handle this. Other easiest option would be storing the same in Session, Cache or Cookie.
While storing a value in ViewState, it will create a hidden field
in the page and store the value to maintain it across the postback.
public int NextCount
{
get { return ViewState["NextCount"] != null ? (int)ViewState["NextCount"] : 0; }
set { ViewState["NextCount"] = value; }
}
protected void btnNext_Click1(object sender, EventArgs e)
{
NextCount = NextCount+7;
lblsum.Text = DateTime.Now.StartOfWeek(DayOfWeek.Monday).AddDays(NextCount).ToShortDateString();
}
protected void btnPrevious_Click(object sender, EventArgs e)
{
NextCount = NextCount - 7;
lblsum.Text = DateTime.Now.StartOfWeek(DayOfWeek.Monday).AddDays(NextCount).ToShortDateString();
}
How do I get the row index of the last row inserted in a GridView considering the user may have custom ordering in the grid (I can't use the last row).
protected void ButtonAdd_Click(object sender, EventArgs e)
{
SqlDataSourceCompleteWidget.Insert();
GridViewCompleteWidget.DataBind();
GridViewCompleteWidget.EditIndex = ??????;
}
I want to put the row into edit mode immediately after the insert occurs.
UPDATE
protected void ButtonAdd_Click(object sender, EventArgs e)
{
//SqlDataSourceCompleteWidget.InsertParameters.Add("EFFECTIVE_DATE", Calendar1.SelectedDate.ToString("yyyy-MM-dd"));
SqlDataSourceCompleteWidget.InsertParameters[0].DefaultValue = Calendar1.SelectedDate.ToString("yyyy-MM-dd");
SqlDataSourceCompleteWidget.Insert();
GridViewCompleteWidget.DataBind();
GridViewCompleteWidget.EditIndex = 1;
}
private int mostRecentRowIndex = -1;
protected void GridViewCompleteWidget_RowCreated(object sender, GridViewRowEventArgs e)
{
mostRecentRowIndex = e.Row.RowIndex;
//GridViewCompleteWidget.EditIndex = e.Row.RowIndex;
}
You would want to handle the RowCreated event. You can access the row data and identity/location using the GridViewRowEventArgs object that is passed to this event handler.
void YourGridView_RowCreated(Object sender, GridViewRowEventArgs e)
{
YourGridView.EditIndex = e.Row.RowIndex;
}
Edit using the gridview's onitemcommand. Then you can use a binding expression on the grid column to set whatever you want. If you are using a button or linkbutton or several others you could use the CommandArgument
CommandArgument='<%# Eval("DataPropertyIWant") %>'
Edit
Sorry I skipped that ordering was done by user. I've tested the following code and it works having respected the users ordering of items, but we must take the user to the page where the last row exists.
1st: Retrieve the Max(ID) from database after insertion, store it in a session
select Max(ID) from tbl_name; -- this statement can retrieve the last ID
Session["lastID"]=lastID;
2nd:
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if(e.Row.RowType==DataControlRowType.DataRow)
if (Session["lastID"] != null)
if ((int)DataBinder.Eval(e.Row.DataItem, "ID") == (int)Session["lastID"])
{
//Session["rowIndex"] = e.Row.RowIndex;
int rowIndex=e.Row.RowIndex;
if (Session["type"] != null)
if (Session["type"].ToString() == "Normal")
{
int integ;
decimal fract;
integ = rowIndex / GridView1.PageSize;
fract = ((rowIndex / GridView1.PageSize) - integ;
if (fract > 0)
GridView1.PageIndex = integ;
else if (integ > 0) GridView1.PageIndex = integ - 1;
GridView1.EditIndex = rowIndex;
}
}
}
3rd: Convert your commandField into TemplateFields and Set their CommandArgument="Command"
I'll use this argument to identify what triggered RowDataBound event. I store the value in a Session["type"]. The default value is "Normal" defined in the page load event.
if(!IsPostBack)
Session["type"]="Normal";
the other value is set in RowCommand event
protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandArgument == "Command")
Session["type"] = "Command";
}
It works for me fine.
Sorry for my language and,may be, unnecessary details.
UPDATE: I worked off of this post
I'm assuming you just return a value after doing the insert but you can set ID wherever you insert the record.
private int mostRecentRowIndex = -1; //edit index
private bool GridRebound = false; //used to make sure we don't rebind
private string ID; //Is set to the last inserted ID
protected void Page_Load(object sender, EventArgs e)
{
if (Page.IsPostBack)
{
//Set so grid isn't rebound on postback
GridRebound = true;
}
}
protected void ButtonAdd_Click(object sender, EventArgs e)
{
SqlDataSourceCompleteWidget.InsertParameters[0].DefaultValue = Calendar1.SelectedDate.ToString("yyyy-MM-dd");
ID = SqlDataSourceCompleteWidget.Insert();
GridViewCompleteWidget.DataBind();
}
protected void GridViewCompleteWidget_RowDataBound(object sender, GridViewRowEventArgs e)
{
//Check that the row index >= 0 so it is a valid row with a datakey and compare
//the datakey to ID value
if (e.Row.RowIndex >= 0 && GridViewCompleteWidget.DataKeys[e.Row.RowIndex].Value.ToString() == ID)
{
//Set the edit index
mostRecentRowIndex = e.Row.RowIndex;
}
}
protected void GridViewCompleteWidget_DataBound(object sender, EventArgs e)
{
//Set Gridview edit index if isn't -1 and page is not a post back
if (!GridRebound && mostRecentRowIndex >= 0)
{
//Setting GridRebound ensures this only happens once
GridRebound = true;
GridViewCompleteWidget.EditIndex = mostRecentRowIndex;
GridViewCompleteWidget.DataBind();
}
}
Selects if inserting last record in gridview (no sorting)
You should be able to get the number of rows from the datasource: (minus 1 because the rows start at 0 and the count starts at 1)
GridViewCompleteWidget.EditIndex = ((DataTable)GridViewCompleteWidget.DataSource).Rows.Count - 1;
But put this before you bind the data:
protected void ButtonAdd_Click(object sender, EventArgs e)
{
SqlDataSourceCompleteWidget.Insert();
GridViewCompleteWidget.EditIndex = ((DataTable)GridViewCompleteWidget.DataSource).Rows.Count - 1;
GridViewCompleteWidget.DataBind();
}
Using a GridView on the default page and want to show details of the row selected on another page. The code for capturing and sending the datakey is -
protected void SelectedIndexChanged(object sender, EventArgs e)
{
int index = GridView1.SelectedIndex;
Response.Redirect("InvoicePage.aspx? EntityID= " + GridView1.DataKeys[index].Value.ToString());
}
And the code for retrieving the value is -
protected void Page_Load(object sender, EventArgs e)
{
string id = Request.QueryString["EntityID"];
}
My problem is that the id variable is a null on the receiving page. What am I missing?
Your URL should look something like this: InvoicePage.aspx?EntityID=", No space before or after EntityID
By The way Remove the white space : aspx?<>*EntityID<>*=
protected void SelectedIndexChanged(object sender, EventArgs e)
{
int index = GridView1.SelectedIndex;
string id = GridView1.DataKeys[index].Value.ToString();
Response.Redirect("InvoicePage.aspx?EntityID="+id);
}
Try to add :
private string _EntityId;
//To check if value pass on query string
//but this is not really required if you want
public string EntityId
{
get
{
if (Request.QueryString["EntityID"] != null)
{
try
{
_EntityId = Convert.ToString(Request.QueryString["EntityID"].ToString());
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
}
else
{
_EntityId="0";
}
return _EntityId;
}
}
protected void Page_Load(object sender, EventArgs e)
{
//Request.QueryString["EntityID"].ToString();
string id = EntityId;
}
Regads
namespace Dynamic_Controls.Dropdowndynamic
{
public partial class DropdowndynamicUserControl : UserControl
{
protected void Page_Load(object sender, EventArgs e)
{
if (ControlCount != 0)
{
Recreatecontrols();
}
}
private void Recreatecontrols()
{
// createtextboxes(ControlCount);
createtextboxes(2);
}
protected void createtextboxes(int ControlCount)
{
DynPanel.Visible = true;
for (int i = 0; i <= ControlCount; i++)
{
TextBox tb = new TextBox();
tb.Width = 150;
tb.Height = 18;
tb.TextMode = TextBoxMode.SingleLine;
tb.ID = "TextBoxID" + this.DynPanel.Controls.Count;
tb.Text = "EnterTitle" + this.DynPanel.Controls.Count;
tb.Load+=new EventHandler(tb_Load);
tb.Visible = true;
tb.EnableViewState = true;
DynPanel.Controls.Add(tb);
DynPanel.Controls.Add(new LiteralControl("<br/>"));
}
}
protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
Int32 newControlCount = Int32.Parse(DropDownList1.SelectedValue);
//createtextboxes(newControlCount);
//ControlCount+=newControlCount;
createtextboxes(2);
}
protected void Button1_Click(object sender, EventArgs e)
{
readtextboxes();
}
public void readtextboxes()
{
string x = string.Empty;
for (int a = 0; a < DynPanel.Controls.Count; a++)
{
foreach (Control ctrl in DynPanel.Controls)
{
if (ctrl is TextBox)
{
x = ((TextBox)ctrl).Text;
}
x+=x+("\n");
}
Result.Text = x;
}
}
private Int32 ControlCount
{
get
{
if (ViewState["ControlCount"] == null)
{
ViewState["ControlCount"] = 0;
}
return (Int32)ViewState["ControlCount"];
}
set
{
// ViewState["ControlCount"] = value;
ViewState["ControlCount"] = 2;
}
}
private void tb_Load(object sender, EventArgs e)
{
LblInfo.Text = ((TextBox)sender).ID + "entered";
}
}
}
Are you adding these controls dynamically in Page_Load (by, I'm assuming, calling your AddRequiredControl() method)? If so, is it wrapped in a conditional which checks for IsPostBack? The likely culprit is that you're destructively re-populating the page with controls before you get to the button click handler, so all the controls would be present but empty (as in an initial load of the page).
Also, just a note, if you're storing each control in _txt in your loop, why not refer to that variable instead of re-casting on each line. The code in your loop seems to be doing a lot of work for little return.
You need to recreate any dynamically created controls on or before Page_Load or they won't contain postback data.
I'm not entirely clear what happens on DropdownList changed - are you trying to preserve anything that has been entered already based on the textboxes previously generated?
In any event (no pun intended) you need to recreate exactly the same textboxes in or before Page_Load that were there present on the postback, or there won't be data.
A typical way to do this is save something in ViewState that your code can use to figure out what to recreate - e.g. the previous value of the DropDownList. Override LoadViewState and call the creation code there in order to capture the needed value, create the textboxes, then in the DropDownList change event, remove any controls that may have been created in LoadViewState (after of course dealing with their data) and recreate them based on the new value.
edit - i can't figure out how your code works now, you have AddRequiredControl with parameters but you call it with none. Let's assume you have a function AddRequiredControls that creates all textboxes for a given DropDownList1 value, and has this signature:
void AddRequiredControls(int index)
Let's also assume you have a PlaceHolder called ControlsPlaceholder that will contain the textboxes. Here's some pseudocode:
override void LoadViewState(..) {
base.LoadViewState(..);
if (ViewState["oldDropDownIndex"]!=null) {
AddRequiredControls((int)ViewState["oldDropDownIndex"]);
}
}
override OnLoad(EventArgs e)
{
// process data from textboxes
}
void DropDownList1_SelectedIndexChanged(..) {
ControlsPlaceholder.Controls.Clear();
AddRequiredControls(DropDownList1.SelectedIndex);
ViewState["oldDropDownIndex"]=DropDownList1.SelectedIndex;
}