Unable to convert System.Date and System.int to System.String, error
0
I'm trying to search a keyword in the SQL Server db from Textbox1 and printing the corresponding details in other TextBoxes.
While running the below code, it shows it is unable to convert the DateTime and Integer value into String to display it in the TextBoxes.
Also there is another end of statement expected error in the command.Parameter line:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim connection As New SqlConnection("Server= DESKTOP-STMQUHM; Database = HospitalDB;Trusted_Connection=True")
Dim command As New SqlCommand("select * from Medicines where MedicineName ='" & TextBox1.Text & "' ", connection)
command.Parameters.Add("@Textbox1",SqlDbType.Text)Value=TextBox1.Text 'Another error
Dim adapter As New SqlDataAdapter(command)
Dim table As New DataTable()
adapter.Fill(table)
TextBox1.Text = ""
TextBox2.Text = ""
TextBox3.Text = ""
TextBox4.Text = ""
If table.Rows.Count() > 0 Then
TextBox1.Text = table.Rows(0)(1).ToString
TextBox2.Text = table.Rows(0)(2).ToString
TextBox3.Text = table.Rows(0)(3).ToString
TextBox4.Text = table.Rows(0)(4).ToString
Else
MessageBox.Show("NO DATA FOUND!!")
End If
End Sub
sql-server vb.net edited Nov 12 at 17:51
Jimi
6,74441533
asked Nov 12 at 17:36
Sidharth K
53
add a comment |
0
I'm trying to search a keyword in the SQL Server db from Textbox1 and printing the corresponding details in other TextBoxes.
While running the below code, it shows it is unable to convert the DateTime and Integer value into String to display it in the TextBoxes.
Also there is another end of statement expected error in the command.Parameter line:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim connection As New SqlConnection("Server= DESKTOP-STMQUHM; Database = HospitalDB;Trusted_Connection=True")
Dim command As New SqlCommand("select * from Medicines where MedicineName ='" & TextBox1.Text & "' ", connection)
command.Parameters.Add("@Textbox1",SqlDbType.Text)Value=TextBox1.Text 'Another error
Dim adapter As New SqlDataAdapter(command)
Dim table As New DataTable()
adapter.Fill(table)
TextBox1.Text = ""
TextBox2.Text = ""
TextBox3.Text = ""
TextBox4.Text = ""
If table.Rows.Count() > 0 Then
TextBox1.Text = table.Rows(0)(1).ToString
TextBox2.Text = table.Rows(0)(2).ToString
TextBox3.Text = table.Rows(0)(3).ToString
TextBox4.Text = table.Rows(0)(4).ToString
Else
MessageBox.Show("NO DATA FOUND!!")
End If
End Sub
edited Nov 12 at 17:51
Jimi
6,74441533
asked Nov 12 at 17:36
Sidharth K
53
You're missing a dot at:command.Parameters.Add("@Textbox1",SqlDbType.Text)Value=TextBox1.Textit should be:command.Parameters.Add("@Textbox1",SqlDbType.Text).Value=TextBox1.Text, though you haven't added a parameter namedTextbox1to your query. Change it to:select * from Medicines where MedicineName = @Textbox1(no string concatenation).
– Visual Vincent
Nov 12 at 17:45
add a comment |
0
0
0
I'm trying to search a keyword in the SQL Server db from Textbox1 and printing the corresponding details in other TextBoxes.
While running the below code, it shows it is unable to convert the DateTime and Integer value into String to display it in the TextBoxes.
Also there is another end of statement expected error in the command.Parameter line:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim connection As New SqlConnection("Server= DESKTOP-STMQUHM; Database = HospitalDB;Trusted_Connection=True")
Dim command As New SqlCommand("select * from Medicines where MedicineName ='" & TextBox1.Text & "' ", connection)
command.Parameters.Add("@Textbox1",SqlDbType.Text)Value=TextBox1.Text 'Another error
Dim adapter As New SqlDataAdapter(command)
Dim table As New DataTable()
adapter.Fill(table)
TextBox1.Text = ""
TextBox2.Text = ""
TextBox3.Text = ""
TextBox4.Text = ""
If table.Rows.Count() > 0 Then
TextBox1.Text = table.Rows(0)(1).ToString
TextBox2.Text = table.Rows(0)(2).ToString
TextBox3.Text = table.Rows(0)(3).ToString
TextBox4.Text = table.Rows(0)(4).ToString
Else
MessageBox.Show("NO DATA FOUND!!")
End If
End Sub
edited Nov 12 at 17:51
Jimi
6,74441533
asked Nov 12 at 17:36
Sidharth K
53
I'm trying to search a keyword in the SQL Server db from Textbox1 and printing the corresponding details in other TextBoxes.
While running the below code, it shows it is unable to convert the DateTime and Integer value into String to display it in the TextBoxes.
Also there is another end of statement expected error in the command.Parameter line:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim connection As New SqlConnection("Server= DESKTOP-STMQUHM; Database = HospitalDB;Trusted_Connection=True")
Dim command As New SqlCommand("select * from Medicines where MedicineName ='" & TextBox1.Text & "' ", connection)
command.Parameters.Add("@Textbox1",SqlDbType.Text)Value=TextBox1.Text 'Another error
Dim adapter As New SqlDataAdapter(command)
Dim table As New DataTable()
adapter.Fill(table)
TextBox1.Text = ""
TextBox2.Text = ""
TextBox3.Text = ""
TextBox4.Text = ""
If table.Rows.Count() > 0 Then
TextBox1.Text = table.Rows(0)(1).ToString
TextBox2.Text = table.Rows(0)(2).ToString
TextBox3.Text = table.Rows(0)(3).ToString
TextBox4.Text = table.Rows(0)(4).ToString
Else
MessageBox.Show("NO DATA FOUND!!")
End If
End Sub
edited Nov 12 at 17:51
Jimi
6,74441533
asked Nov 12 at 17:36
Sidharth K
53
edited Nov 12 at 17:51
Jimi
6,74441533
asked Nov 12 at 17:36
Sidharth K
53
edited Nov 12 at 17:51
Jimi
6,74441533
edited Nov 12 at 17:51
Jimi
6,74441533
edited Nov 12 at 17:51
Jimi
6,74441533
6,74441533
asked Nov 12 at 17:36
Sidharth K
53
asked Nov 12 at 17:36
Sidharth K
53
asked Nov 12 at 17:36
Sidharth K
53
53
You're missing a dot at:command.Parameters.Add("@Textbox1",SqlDbType.Text)Value=TextBox1.Textit should be:command.Parameters.Add("@Textbox1",SqlDbType.Text).Value=TextBox1.Text, though you haven't added a parameter namedTextbox1to your query. Change it to:select * from Medicines where MedicineName = @Textbox1(no string concatenation).
– Visual Vincent
Nov 12 at 17:45
add a comment |
You're missing a dot at:command.Parameters.Add("@Textbox1",SqlDbType.Text)Value=TextBox1.Textit should be:command.Parameters.Add("@Textbox1",SqlDbType.Text).Value=TextBox1.Text, though you haven't added a parameter namedTextbox1to your query. Change it to:select * from Medicines where MedicineName = @Textbox1(no string concatenation).
– Visual Vincent
Nov 12 at 17:45
You're missing a dot at:
command.Parameters.Add("@Textbox1",SqlDbType.Text)Value=TextBox1.Text it should be: command.Parameters.Add("@Textbox1",SqlDbType.Text).Value=TextBox1.Text, though you haven't added a parameter named Textbox1 to your query. Change it to: select * from Medicines where MedicineName = @Textbox1 (no string concatenation).– Visual Vincent
Nov 12 at 17:45
You're missing a dot at:
command.Parameters.Add("@Textbox1",SqlDbType.Text)Value=TextBox1.Text it should be: command.Parameters.Add("@Textbox1",SqlDbType.Text).Value=TextBox1.Text, though you haven't added a parameter named Textbox1 to your query. Change it to: select * from Medicines where MedicineName = @Textbox1 (no string concatenation).– Visual Vincent
Nov 12 at 17:45
add a comment |
1 Answer
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oldest
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Try to change this:
Dim command As New SqlCommand("select * from Medicines where MedicineName ='" & TextBox1.Text & "' ", connection)
command.Parameters.Add("@Textbox1",SqlDbType.Text)Value=TextBox1.Text
Into this:
Dim command As New SqlCommand("select * from Medicines where MedicineName = @MedicineName", connection)
command.Parameters.Add("@MedicineName",SqlDbType.Text).Value=TextBox1.Text
This is because you have not declared the parameter name into your original SQL string, then on the second line of your code, before Value, you're missing a dot.
edited Nov 12 at 17:54
Jimi
6,74441533
answered Nov 12 at 17:44
henoc salinas
7151416
add a comment |
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1 Answer
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1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
1
Try to change this:
Dim command As New SqlCommand("select * from Medicines where MedicineName ='" & TextBox1.Text & "' ", connection)
command.Parameters.Add("@Textbox1",SqlDbType.Text)Value=TextBox1.Text
Into this:
Dim command As New SqlCommand("select * from Medicines where MedicineName = @MedicineName", connection)
command.Parameters.Add("@MedicineName",SqlDbType.Text).Value=TextBox1.Text
This is because you have not declared the parameter name into your original SQL string, then on the second line of your code, before Value, you're missing a dot.
edited Nov 12 at 17:54
Jimi
6,74441533
answered Nov 12 at 17:44
henoc salinas
7151416
add a comment |
1
Try to change this:
Dim command As New SqlCommand("select * from Medicines where MedicineName ='" & TextBox1.Text & "' ", connection)
command.Parameters.Add("@Textbox1",SqlDbType.Text)Value=TextBox1.Text
Into this:
Dim command As New SqlCommand("select * from Medicines where MedicineName = @MedicineName", connection)
command.Parameters.Add("@MedicineName",SqlDbType.Text).Value=TextBox1.Text
This is because you have not declared the parameter name into your original SQL string, then on the second line of your code, before Value, you're missing a dot.
edited Nov 12 at 17:54
Jimi
6,74441533
answered Nov 12 at 17:44
henoc salinas
7151416
add a comment |
1
1
1
Try to change this:
Dim command As New SqlCommand("select * from Medicines where MedicineName ='" & TextBox1.Text & "' ", connection)
command.Parameters.Add("@Textbox1",SqlDbType.Text)Value=TextBox1.Text
Into this:
Dim command As New SqlCommand("select * from Medicines where MedicineName = @MedicineName", connection)
command.Parameters.Add("@MedicineName",SqlDbType.Text).Value=TextBox1.Text
This is because you have not declared the parameter name into your original SQL string, then on the second line of your code, before Value, you're missing a dot.
edited Nov 12 at 17:54
Jimi
6,74441533
answered Nov 12 at 17:44
henoc salinas
7151416
Try to change this:
Dim command As New SqlCommand("select * from Medicines where MedicineName ='" & TextBox1.Text & "' ", connection)
command.Parameters.Add("@Textbox1",SqlDbType.Text)Value=TextBox1.Text
Into this:
Dim command As New SqlCommand("select * from Medicines where MedicineName = @MedicineName", connection)
command.Parameters.Add("@MedicineName",SqlDbType.Text).Value=TextBox1.Text
This is because you have not declared the parameter name into your original SQL string, then on the second line of your code, before Value, you're missing a dot.
edited Nov 12 at 17:54
Jimi
6,74441533
answered Nov 12 at 17:44
henoc salinas
7151416
edited Nov 12 at 17:54
Jimi
6,74441533
edited Nov 12 at 17:54
Jimi
6,74441533
edited Nov 12 at 17:54
Jimi
6,74441533
6,74441533
answered Nov 12 at 17:44
henoc salinas
7151416
answered Nov 12 at 17:44
henoc salinas
7151416
answered Nov 12 at 17:44
henoc salinas
7151416
7151416
add a comment |
add a comment |
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You're missing a dot at:
command.Parameters.Add("@Textbox1",SqlDbType.Text)Value=TextBox1.Textit should be:command.Parameters.Add("@Textbox1",SqlDbType.Text).Value=TextBox1.Text, though you haven't added a parameter namedTextbox1to your query. Change it to:select * from Medicines where MedicineName = @Textbox1(no string concatenation).– Visual Vincent
Nov 12 at 17:45