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From your first message:
if (( Application.OpenForms["volumepanel"] as MainForm ) != null )
Is the VolumePanel-Form actually of the type MainForm? If not, the as-keyword will make the expression left of the equal-sign null, so that your if-check fails although the VolumePanel actually is open.
Also, since you're using the return value of Application.OpenForms["volumepanel"] only for checking for null you don't even need the as-keyword here.
If the brain were so simple we could understand it, we would be so simple we couldn't. — Lyall Watson
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Without seeing your code, I can only propose an answer that I think will work independent of your UI design; if I could see your code, I'd probably propose creating a "local" boolean variable.
1. set a global static variable 'IsVolumeControlShown
public static class ApplicationGlobals
{
public static bool IsVolumeControlShown = false;
}2. when you get the event notification to show the VolumeControl:
public EyesAtTopEvent(????, ????)
{
if(! ApplicationGlobals.IsVolumeControlShown)
{
VolumeControl.Show();
ApplicationGlobals.IsVolumeControlShown = true;
}
}3. When you get the Event to hide the VolumeControl:
public EyesNotAtTopEvent(????, ????)
{
if(ApplicationGlobals.IsVolumeControlShown)
{
VolumeControl.Hide();
ApplicationGlobals.IsVolumeControlShown = false;
}
}Note: this is not code I would actually use, but an example I hope will indicate to you a "path to follow:"
0. create the VolumeControl whatever (panel ? form ?) once and keep a reference to it where you can access it.
1. use a variable to control the visibility of the VolumeControl
2. use that variable in the right place to show/hide the VolumeControl as needed.
Note: "ideally" you would be so "in control" of the code that you would be certain when you were showing or hiding the VolumeControl, in which case you would not have to check the current visible state of the VolumeControl every time you needed to show or hide it. However, imho, the kind of "defensive programming" shown here ... the visible state check ... is often useful in UI work where events may happen at a high frequency.
«Tell me and I forget. Teach me and I remember. Involve me and I learn.» Benjamin Franklin
modified 15-Jan-16 7:57am.
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Hello
I need to create a sw that send SMS from a c# form using a Sony Xperia E4.
1) I cannot find the AT command to drive the smartphone
2) I cannot find the way to assign the correct portname to the usb port I connect the smartphone to.
I am using System.IO.Ports .
Then I make this nameport.WriteLine("AT+CMGS=" + Celnumber + "r") but here code return with exception.
Regards
Roberto
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The AT commands are documented all over the web. The command set is standardized, with vendor specific extensions. A little Google goes a long way[^]. Sending an SMS normally doesn't use any vendor extensions.
As for "assigning a port", your code doesn't do that. You have to get that information from either from the user or your code can take an educated guess at the port name. Example[^].
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Hi All,
I want to create my own report builder for our windows or web c# application, for each project we are build we must create a reports my need is we want to build the report builder and we can add it to any project and create the reports using this builder dynamically.
Please let me know if there is a tool can do that or how we can build this tool.
Thank you all
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There are many component vendors out there who provide exactly this. I like the Syncfusion options, but you can choose any of the major vendors (DevExpress is a popular choice).
This space for rent
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ok, look for my need.
1. create windows/web application that can connect to a database.
2. choose type of report from procedures, or from views
3. then we choose the report type is pivot or not
4. we have 3 list first for row header, second for column header, and the last for the sql operation such as sum, count, max
5. if the report is not pivot the it will be a normal select, and we drag and drop the view fields name to the column header list and if there is an sql operation we drag a field over one of them (sum, count,....), and create the select
6. if the report is pivot we drag fields for the column header, and fields for the rows header, and fields for the operation if found and we create the pivot select.
7. after that we save this select to a report database contains report name , select query, report classification.
8. in each application we build the reports from these database in the application menu and we can view the data and print it using the shown screen which is built in the dll or api that we can create for the web and for the windows
please let me know if this is possible or not, or if there is a tool can we buy it to use and don't create our own one.
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Please stop spamming the thread with your requirements. This isn't a code-on-demand service where you list your vague requirements and someone spends days coding a solution for you. If you can't do this work yourself then look to hire a freelancer.
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zead jalil wrote: Please let me know if there is a tool can do that or how we can build this tool.
The amount of code is incredibly complex and very time consuming to do this yourself. As such, there is no way we can tell you how to do it here. It all depends on how much control you want to give your users.
I suggest using a tool like Microsoft SSRS and it's Ad hoc report builder or some other tool that already exists.
There are only 10 types of people in the world, those who understand binary and those who don't.
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ok, look for my needed.
1. create windows/web application that can connect to a database.
2. choose type of report from procedures, or from views
3. then we choose the report type is pivot or not
4. we have 3 list first for row header, second for column header, and the last for the sql operation such as sum, count, max
5. if the report is not pivot the it will be a normal select, and we drag and drop the view fields name to the column header list and if there is an sql operation we drag a field over one of them (sum, count,....), and create the select
6. if the report is pivot we drag fields for the column header, and fields for the rows header, and fields for the operation if found and we create the pivot select.
7. after that we save this select to a report database contains report name , select query, report classification.
8. in each application we build the reports from these database in the application menu and we can view the data and print it using the shown screen which is built in the dll or api that we can create for the web and for the windows
please let me know if this is possible or not, or if there is a tool can we buy it to use and don't create our own one.
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public string SimpleReport(string title, string head, bool disp_head, int size, string csvHeader, string sizes, ref ArrayList myReport)
{
if (myReport.Count == 0)
return "";
ArrayList lstHeader = new ArrayList(),
lstContent = new ArrayList(),
lstTableSizes = new ArrayList(),
lstMessages = new ArrayList(),
lstFilters = new ArrayList(),
lst_sub_tbl_head = new ArrayList();
lstContent.Add(myReport);
lstMessages.Add(title);
lstTableSizes.Add(size);
string[] par = csvHeader.Split(',');
if (sizes == "")
{
for (int t = 0; t < par.Length; ++t)
{
sizes += (size / par.Length).ToString() + ",";
}
sizes = sizes.TrimEnd(',');
}
for (int t = 0; t < par.Length; ++t)
lst_sub_tbl_head.Add(par[t]);
lstHeader.Add(lst_sub_tbl_head);
return CodeReport ( title, head, disp_head, ref lstHeader, ref lstContent, sizes );
}
public string SimpleReport(string title, int size, string csvHeader, string sizes, ref ArrayList myReport)
{
return SimpleReport(title, "Resultados", size, csvHeader, sizes, ref myReport);
}
public string SimpleReportAlt(string title, int size, string csvHeader, string sizes, ref ArrayList myReport)
{
return SimpleReport("", title, size, csvHeader, sizes, ref myReport);
}
public bool changeColor = false;
public string CodeReport ( string info, string head, bool disp_head, ref ArrayList lstHeader, ref ArrayList lstContents, string sizes )
{
string[] s_pw = sizes.Split(',');
int t_size = 0;
for (int t = 0; t < s_pw.Length; ++t)
t_size += Convert.ToInt32(s_pw[t]);
StringBuilder sb = new StringBuilder();
sb.Append(info + "<span style='font-size:12px'><section class='widget2'><table class='table table-hover'>");
ArrayList tmp_head_cur_categ = lstHeader[0] as ArrayList;
ArrayList tmp_content_cur_categ = lstContents[0] as ArrayList;
if (disp_head)
{
sb.Append("<thead><tr>");
for (int t = 0; t < tmp_head_cur_categ.Count; ++t)
{
string cont = tmp_head_cur_categ[t].ToString();
sb.Append("<th valign='top' align='left'><b>" + cont + "</b></th>");
}
sb.Append("</tr></thead>");
}
sb.Append("<tbody>");
for (int t = 0; t < tmp_content_cur_categ.Count; ++t)
{
ArrayList tmp_line = tmp_content_cur_categ[t] as ArrayList;
sb.Append("<tr>");
for (int g = 0; g < tmp_line.Count; ++g)
sb.Append("<td valign='top' width=\"" + s_pw[g] + "px\">" + tmp_line[g].ToString() + "</td>");
sb.Append("</tr>");
}
sb.Append("</tbody></table></section></span>");
return sb.ToString();
}
List<UserData> lst_report = new List<UserData>();
ArrayList myReport = new ArrayList();
for (int t = 0; t < lst_report.Count; ++t)
{
UserData p = lst_report[t];
ArrayList columns = new ArrayList();
columns.Add("<a href='SamplePage.aspx?cod=" + p["id"] + "'>" + p["login"] + "</a>");
columns.Add(p["name"]);
columns.Add(p["email"]);
myReport.Add(columns);
}
LitRes.Text = var_util.SimpleReport( "", 0, "Login,Full Name,Email", "100,180,120", ref myReport);
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ok, look for my needed.
1. create windows/web application that can connect to a database.
2. choose type of report from procedures, or from views
3. then we choose the report type is pivot or not
4. we have 3 list first for row header, second for column header, and the last for the sql operation such as sum, count, max
5. if the report is not pivot the it will be a normal select, and we drag and drop the view fields name to the column header list and if there is an sql operation we drag a field over one of them (sum, count,....), and create the select
6. if the report is pivot we drag fields for the column header, and fields for the rows header, and fields for the operation if found and we create the pivot select.
7. after that we save this select to a report database contains report name , select query, report classification.
8. in each application we build the reports from these database in the application menu and we can view the data and print it using the shown screen which is built in the dll or api that we can create for the web and for the windows
please let me know if this is possible or not, or if there is a tool can we buy it to use and don't create our own one.
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ok, thats some intense requirements - the only code I have is
for presentation only, sorry.
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I use the DevExpress reporting system, and I find it very easy to use. For a basic GUI report builder you don't really need any code, it's all handled by the reporting framework. You can build reports dynamically in code as well with the framework.
What do you get when you cross a joke with a rhetorical question?
The metaphorical solid rear-end expulsions have impacted the metaphorical motorized bladed rotating air movement mechanism.
Do questions with multiple question marks annoy you???
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ok, look for my needed.
1. create windows/web application that can connect to a database.
2. choose type of report from procedures, or from views
3. then we choose the report type is pivot or not
4. we have 3 list first for row header, second for column header, and the last for the sql operation such as sum, count, max
5. if the report is not pivot the it will be a normal select, and we drag and drop the view fields name to the column header list and if there is an sql operation we drag a field over one of them (sum, count,....), and create the select
6. if the report is pivot we drag fields for the column header, and fields for the rows header, and fields for the operation if found and we create the pivot select.
7. after that we save this select to a report database contains report name , select query, report classification.
8. in each application we build the reports from these database in the application menu and we can view the data and print it using the shown screen which is built in the dll or api that we can create for the web and for the windows
please let me know if this is possible or not, or if there is a tool can we buy it to use and don't create our own one.
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|
That should be possible with the DX controls. Quite a bit of code would be needed, but the framework should help with that.
What do you get when you cross a joke with a rhetorical question?
The metaphorical solid rear-end expulsions have impacted the metaphorical motorized bladed rotating air movement mechanism.
Do questions with multiple question marks annoy you???
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Your expectations are a long way beyond a report builder, any report builder. All of them will handle to design and layout of the reports you require, deciding on the layout of the report is up to the user designing the report, not the report builder software.
Storing the query and report code into a database is up to you to build. I have done all of the above using a number of reporting tools over the years so there is nothing new about your requirements. It will require you to a lot of work managing the infrastructure.
You will not need to create your own report designer, use one of the commercially available ones.
Never underestimate the power of human stupidity
RAH
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Hi,
where can i find a GOOD Example for C# Datagrid and CRUD-Functionality, with SqlDataAdapter.
I want to Insert, Update, Delete Gridvalues with Bulk via "Update-Button"
Thanks and
Regards
Nicole
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What database are you using ?
iirc, MySQL has a plugin to Visual Studio ?2010+ that can generate a grid based or page based CRUD program
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I have a function fired by a buton to select an entire row of checkboxes of a datagrid and set them with the same value (true or false), similar to the excel filters. If all checkboxes of the row are true than if I click the button, they all become false, otherwise they all become true. But it only works when all the checkboxes are simultaneously true or false, if one of them is true, they all become false instead of true as it was supposed to, like in excel filters. This is due to the last part of the code that is commented which is not throwing the expected result. Can anyone help to see the problem cause?
public void seleciona_check()
{
for (int i = 7; i < grid_lic.ColumnCount-1 ; i++)
{
for (int j = 7; j < grid_lic.ColumnCount - 1; j++)
{
if (grid_lic.CurrentRow.Cells[j].Value.ToString() == grid_lic.CurrentRow.Cells[i].Value.ToString())
{
if (grid_lic.CurrentRow.Cells[i].Value.ToString() == "True")
{
Convert.ToBoolean(grid_lic.CurrentRow.Cells[i].Value = false);
Convert.ToBoolean(grid_lic.CurrentRow.Cells[3].Value = false);
}
else if (grid_lic.CurrentRow.Cells[i].Value.ToString() == "False")
{
Convert.ToBoolean(grid_lic.CurrentRow.Cells[i].Value = true);
Convert.ToBoolean(grid_lic.CurrentRow.Cells[3].Value = true);
}
}
}
}
modified 11-Jan-16 15:01pm.
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Your code needs quite a bit of improments:
1. why start at 7:7 (i and j)? Why go until grid_lic.ColumnCount -1 instead of grid_lic.ColumnCount?
2. Your i and j iterate through columsn onlyl not through rows at all.
3. Why do you set that CurrentRow.Cells[3] to false or true?
4. Why the double statements (Convert.ToBoolean...)?
5. The Convert.ToBoolean seems un-needed
6. You need to first check ALL cells to see if they are all true or not, so that you'll know how to set them
7. Then, once you've done 6., you have to do a simple for..., and set each checkbox to either false or true (what you computed at step 6.)
Best,
John
-- Log Wizard - a Log Viewer that is easy and fun to use!
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1.
John Torjo wrote: 1. why start at 7:7 (i and j)? Why go until grid_lic.ColumnCount -1 instead of grid_lic.ColumnCount?
Because the checkbox columns are on the column nr. 3 and from 7 untill 19, in a 21 columns datagrid.
John Torjo wrote: 2. Your i and j iterate through columsn onlyl not through rows at all.
I'm not interested in going through rows, but only through the columns of the selected row.
John Torjo wrote: 3. Why do you set that CurrentRow.Cells[3] to false or true?
Because there is a checkbox column in the column nr. 3.John Torjo wrote: 4. Why the double statements (Convert.ToBoolean...)?
Because being checkboxes, only booleans are read.
John Torjo wrote: 6. You need to first check ALL cells to see if they are all true or not, so that you'll know how to set them
Isn't the cycle in the code doing that? What's the alternative?
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