displaying data from 1 form to another - C# Discussion Boards

displaying data from 1 form to another

22-Nov-07 22:58

Process.Start(@"RunDll32 C:\PROGRA~1\COMMON~1\INSTAL~1\PROFES~1\RunTime\10\00\Intel32\Ctor.dll,LaunchSetup \"C:\Program Files\InstallShield Installation Information\{F0A37341-D692-11D4-A984-009027EC0A9C}\SETUP.exe\" -l0x9  -removeonly");

Hope it helps.

I will use Google before asking dumb questions

csanda122-Nov-07 22:46

22-Nov-07 22:46

Hi I have 2 forms in my C# windows application. I type a value in a textbox in form1 and want to populate the results in a datagridview in form2 but its not getting populated. In form2 i have a datagridview and text boxes whose values are binded from db.

Thanx

csanda

Andrei Ungureanu22-Nov-07 22:48

22-Nov-07 22:48

What is the question here?

I will use Google before asking dumb questions

csanda122-Nov-07 22:50

22-Nov-07 22:50

Id like source code to do that

csanda

Andrei Ungureanu22-Nov-07 22:54

22-Nov-07 22:54

csanda1 wrote:
Id like source code to do that

Well this is not nice to say around here. Tell us what you tried, and what it's not working and then you'll get some help.

I will use Google before asking dumb questions

Andrei Ungureanu22-Nov-07 23:01

22-Nov-07 23:01

Your problem might be the databinding...see where it's done...Maybe we could help you better if you would post some of your code.

I will use Google before asking dumb questions

csanda122-Nov-07 23:12

22-Nov-07 23:12

Sorry for being vague.This is the code in form 2

 <br />
private void button1_Click(object sender, EventArgs e)<br />
        {<br />
            string strConnection = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=datatry.mdb";<br />
            string Company = txtSearch.Text;<br />
            string select = "SELECT * FROM ecmain WHERE CompanyName Like  '" + Company + "'";<br />
            OleDbConnection datatryConn = new OleDbConnection(strConnection);<br />
            datatryConn.Open();<br />
<br />
            OleDbDataAdapter da = new OleDbDataAdapter(select, datatryConn);<br />
            DataSet ds = new DataSet();<br />
<br />
            da.Fill(ds, "ecmain");<br />
<br />
            update frm = new update(txtSearch.Text );<br />
            frm.Show();<br />
           <br />
            datatryConn.Close(); <br />

code in form 2

<br />
 private void btnUpdate_Click(object sender, EventArgs e)<br />
        {<br />
<br />
            string strConnection = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=datatry.mdb";<br />
<br />
            string select = "Update ecmain SET CompanyName ='" + txtCompany.Text + "' , ContactName ='" + txtName.Text + "',ContactSurname='" + txtSurname.Text + "', Designation='" + txtDesignation.Text + "',TelephoneNumber='" + txtTel.Text + "', Faxnumber= '" + txtFax.Text + "', Email='" + txtEmail.Text + "',City/Town='" + txtCity.Text + "',PostCode='" + txtPost.Text + "',NumberofEmployees='" + txtEmployees.Text + "', Export='" + cbxExport.SelectedItem + "',ExportDestinations='" + txtDestination.Text + "', SIC Product 1='" + txtSic1.Text + "', Product1_Description='" + txtProduct1.Text + "', SICProduct2='" + txtSic2.Text + "', Product2Description='" + txtProduct2.Text + "', SICProduct3='" + txtSic3.Text + "', Product3Description='" + txtProduct3.Text + "', GeneralComments='" + txtComment.Text + "', Complete='" + cbxComplete.SelectedItem + "' Where CompanyName='" + txtSearch.Text + "'";<br />
            OleDbConnection datatryConn = new OleDbConnection(strConnection);<br />
            OleDbCommand cmd = new OleDbCommand(select, datatryConn);<br />
<br />
            datatryConn.Open();<br />
            cmd.ExecuteNonQuery();<br />
            datatryConn.Close();<br />
            MessageBox.Show("Updated successfully!");<br />
        }<br />

Easy guys im new to programming

csanda

Andrei Ungureanu22-Nov-07 23:25

22-Nov-07 23:25

where is button1 and btnUpdate? You wrote that the whole code is placed in the second form...you got me confused.

I will use Google before asking dumb questions

csanda123-Nov-07 0:22

23-Nov-07 0:22

Ok its like this.Form1 has txtsearch and button1 for search.When u type the company name in the textbox and click the button it shows the update form.
This code is in form1
private void button1_Click(object sender, EventArgs e)
{
string strConnection = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=datatry.mdb";
string Company = txtSearch.Text;
string select = "SELECT * FROM ecmain WHERE CompanyName Like '" + Company + "'";
OleDbConnection datatryConn = new OleDbConnection(strConnection);
datatryConn.Open();

OleDbDataAdapter da = new OleDbDataAdapter(select, datatryConn);
DataSet ds = new DataSet();

da.Fill(ds, "ecmain");

update frm = new update(txtSearch.Text );
frm.Show();

datatryConn.Close();

Form2 is named update, it has a datagridview and textboxes, now what i need is when I click button1 in form1 the search results to appear in the datagridview in form2

This is the update code in form 2

private void btnUpdate_Click(object sender, EventArgs e)
{

string strConnection = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=datatry.mdb";

string select = "Update ecmain SET CompanyName ='" + txtCompany.Text + "' , ContactName ='" + txtName.Text + "',ContactSurname='" + txtSurname.Text + "', Designation='" + txtDesignation.Text + "',TelephoneNumber='" + txtTel.Text + "', Faxnumber= '" + txtFax.Text + "', Email='" + txtEmail.Text + "',City/Town='" + txtCity.Text + "',PostCode='" + txtPost.Text + "',NumberofEmployees='" + txtEmployees.Text + "', Export='" + cbxExport.SelectedItem + "',ExportDestinations='" + txtDestination.Text + "', SIC Product 1='" + txtSic1.Text + "', Product1_Description='" + txtProduct1.Text + "', SICProduct2='" + txtSic2.Text + "', Product2Description='" + txtProduct2.Text + "', SICProduct3='" + txtSic3.Text + "', Product3Description='" + txtProduct3.Text + "', GeneralComments='" + txtComment.Text + "', Complete='" + cbxComplete.SelectedItem + "' Where CompanyName='" + txtSearch.Text + "'";
OleDbConnection datatryConn = new OleDbConnection(strConnection);
OleDbCommand cmd = new OleDbCommand(select, datatryConn);

datatryConn.Open();
cmd.ExecuteNonQuery();
datatryConn.Close();
MessageBox.Show("Updated successfully!");
}

csanda

Andrei Ungureanu23-Nov-07 1:13

23-Nov-07 1:13

You can create a public method in the second form, let's say BindData(). After you call the second's form constructor in button1_Click event, you call that method before showing the second form. Like this:

update frm = new update(txtSearch.Text );
frm.BindData();
frm.Show();

Make sure that the BindData method is the one that binds the gridview and the textboxes to the database according with the text the form received in it's constructor.

Hope it helps.

I will use Google before asking dumb questions

Pete O'Hanlon23-Nov-07 1:17

Pete O'Hanlon

23-Nov-07 1:17

Please don't have direct queries like this. It's just bad practice. Instead, take a look at using Command Parameters - they are your friend, and they remove a lot of vulnerabilities from your application (take a look at this[^] article). Also take a look at this[^] article on passing values between forms.

Deja View - the feeling that you've seen this post before.

My blog | My articles

Joe22-Nov-07 23:01

Joe

22-Nov-07 23:01

Tell me how much you can owe me?. I will take up that task.

Once you have mastered the ability to turn yourself invisible at will, and to deflect bullets with your hair, you will be ready to come back here to the lounge and post programming questions.Only at this point will you be able to dodge the fireballs that are going to come your way. - Pete O'Hanlon

benjymous22-Nov-07 23:27

benjymous

22-Nov-07 23:27

If your forms are modeless, then in form2, add a string property, in form1, after the user has changed text in the text box, change that property on form2.

if your form2 is modal, then add the string from the text box as a parameter to the constructor of form2.

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csanda122-Nov-07 23:15

22-Nov-07 23:15

Ill owe u big time. Pliz help

benjymous22-Nov-07 23:48

benjymous

22-Nov-07 23:48

I have just helped - what I described are fairly fundamental features of the C# language, so you if you don't understand that, I'd suggest you find yourself a good book on the subject

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