How Can I Get Value From Combo Box To Insert To Sql

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C#

SqlCommand cmd2 = new SqlCommand("insertProducts_TBL", con2);
                        cmd2.CommandType = System.Data.CommandType.StoredProcedure;
                        cmd2.Parameters.AddWithValue("@Product_name", txtProduct_name.Text);
                        cmd2.Parameters.AddWithValue("@FK_catId", comboBoxFK_catid.SelectedValue);

Posted 5-Apr-15 22:22pm

Member 11280947

Updated 5-Apr-15 22:45pm

RajeeshMenoth

v2

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Sascha Lefèvre 6-Apr-15 4:36am

Where's the problem?

Member 11280947 6-Apr-15 4:39am

The code not running with SelectedValue

Sascha Lefèvre 6-Apr-15 4:44am

What do you mean by "not running"? Does it not insert the correct value or does it result in an error message (which?) ?

Member 11280947 6-Apr-15 4:56am

The mesage is:

no mapping exists from object type System.Data.DataRowViwe to a Known managed provider native type

4 solutions

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deepankarbhatnagar · Answer 1 · 2015-04-05T22:56:00

HI, I think your field 'FK_catId' is int that why error could arise ,so you have to type cast the string value of combobox into integer like this below,

Convert.Toint32(comboBoxFK_catid.SelectedValue)

Full code below:

SqlCommand cmd2 = new SqlCommand("insertProducts_TBL", con2);
                        cmd2.CommandType = System.Data.CommandType.StoredProcedure;
                        cmd2.Parameters.AddWithValue("@Product_name", txtProduct_name.Text);
                        cmd2.Parameters.AddWithValue("@FK_catId", Convert.Toint32(comboBoxFK_catid.SelectedValue));

Brahmmam · Answer 2 · 2015-04-05T22:56:00

Solution 2

use

C#

SelectedItem

instead of

C#

selectedValue

Posted 5-Apr-15 22:56pm

Brahmmam

Comments

Member 11280947 6-Apr-15 5:11am

The mesage is:

no mapping exists from object type System.Data.DataRowViwe to a Known managed provider native type

Brahmmam 14-Apr-15 2:11am

follow below link
http://stackoverflow.com/questions/18929481/error-no-mapping-exists-from-object-type-system-data-datarowview-to-a-known-ma

Sascha Lefèvre · Answer 3 · 2015-04-05T23:03:00

Solution 3

Your error message indicates that comboBoxFK_catid.SelectedValue contains a DataRowView. You have to know which column of that row you want to insert into your database - I indicate it here with "columnName", replace that with the actual column name:

C#

cmd2.Parameters.AddWithValue(
    "@FK_catId",
    ((DataRowView)comboBoxFK_catid.SelectedValue)["columnName"]);

Posted 5-Apr-15 23:03pm

Sascha Lefèvre

Comments

Member 11280947 6-Apr-15 5:18am

Error Message:

catId is neither a DataColumn nor a DataRelation for table .

cmd2.Parameters.AddWithValue("@FK_catId", ((DataRowView)comboBoxFK_catid.SelectedValue)["catId"]);

catId : From another Table

Sascha Lefèvre 6-Apr-15 5:25am

Looks like there is no column with that name "catId". Please check your column names.

Member 11291690 · Answer 4 · 2015-04-08T02:27:00

Try text property of Combobox

Full code here:-

C#

SqlCommand cmd2 = new SqlCommand("insertProducts_TBL", con2);
                        cmd2.CommandType = System.Data.CommandType.StoredProcedure;
                        cmd2.Parameters.AddWithValue("@Product_name", txtProduct_name.Text);
                        cmd2.Parameters.AddWithValue("@FK_catId", Convert.Toint32(comboBoxFK_catid.text));

How Can I Get Value From Combo Box To Insert To Sql

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